More than a third of the world’s population does not have potable water piped into the home. In sub-Saharan Africa, that number jumps to 84 percent. the Stanford study analyzed data from 26 African countries, where it is estimated that some 40 billion hours of labor each year are spent hauling water, a responsibility often borne by women and children. the Stanford study is the first quantitative analysis of the relationship between the time devoted to fetching water and health outcomes.

Time equals lives

“The time that women devote to water fetching is time that can’t be used for child care, food preparation, cleaning the household environment, or generating income,” explained Amy Pickering, lead author of the study and post-doctoral fellow at the Stanford Woods Institute for the Environment. “All of these factors can have direct influence on the health of children.”

The study found that cutting the walking time to a water source by just 15 minutes can reduce under-five mortality of children by 11 percent, and slash the prevalence of nutrition-depleting diarrhea by 41 percent.

“There is a direct correlation between fetching times and the risk of illness and mortality among children in these regions,” said Jenna Davis, a professor in the Department of Civil and Environmental Engineering at Stanford and a faculty member at the Stanford Woods Institute for the Environment. “Shorter walk times mean less disease, less death.”

Correlations

The authors proposed several reasons that might explain the correlation. the longer fetching times could mean that people bring less water home and, therefore, ration more, leaving little water for hand-washing and other hygienic activities that decrease the spread of disease. Conversely, mothers who spend significant time fetching water may have fewer free hours to care for their children in ways that promote health, and may lose opportunities to earn income that might pay for more nutritious diets and improved health care.

In the near future, growing urban populations and climate change will threaten to further restrict access to freshwater. the researchers’ analysis suggests that efforts to improve water supplies should focus not only on the quality, but also on the distances to water sources.

“Child health is often cited as a principal motivation for making water infrastructure investments Traditionally, however, these investments have focused on improving the type of water source used, rather than the time or effort required to obtain it,” said Pickering. “This is the first study that shows that other factors, especially fetching time, can play a significant role in improving child health.”

Provided by Stanford School of Engineering

In sub-Saharan Africa, a shorter walk to water saves lives

SEATTLE, Feb 01, 2012 (BUSINESS WIRE) –En Masse Entertainment(TM), a gamer-built publisher focused on delivering fun and innovative online games, announced today that its award-winning, PC-based action MMO title, TERA(TM), is now available for pre-order from the company’s website and retailers throughout North America for $49.99. Players who pre-order TERA will have access to all of the game’s Closed Beta Tests, scheduled to take place from February through April, as well as an exclusive Head start play period over the weekend prior to the game’s launch on may 1st.

“By breaking away from yesterday’s repetitive combat systems, and delivering real action, TERA is going to keep players on their toes and actively engaged in the game,” said Chris Lee, Vice President of Publishing at En Masse Entertainment. “The days of staring at your skill bar while pounding the Tab key are over. By requiring players to actively aim, dodge, and block, TERA’s action combat introduces real skill to MMO gameplay.”

En Masse Entertainment will be releasing two collector’s editions of TERA–a traditional boxed edition and a digital download. both will grant players unique in-game items, including the Regal Frostlion Mount for in-game mounted travel, and two equippable items: the level 15 Velik’s Bloodstone Necklace and the level 40 Shakan’s Bloodstone Necklace.

Available in limited quantities, the physical Limited Collector’s Edition will include collectable items such as a Letter of Marque, a canvas world map, a field guide, a Valkyon Federation-issued compass, and a game soundtrack, for $79.99. the Digital Collector’s Edition will be offered for $59.99. both versions include 30 days of game time.

En Masse Entertainment will be hosting five Closed Beta Tests for TERA, allowing select gamers the opportunity to get into the game and preview its blend of action-heavy combat and traditional MMO depth. the Closed Beta Tests, the Open Beta Test that will be open to the general public closer to launch, and Head start will take place on the following dates:

— Closed Beta Test 1: February 10 — 12

— Closed Beta Test 2: February 24 — 26

— Closed Beta Test 3: March 9 — 11

— Closed Beta Test 4: March 23 — 25

— Closed Beta Test 5: April 6 — 8

— Open Beta Test: April 19 — 22

— Head start: April 28 — may 1

Gamers can pre-order TERA now, and ensure their place in the Closed Beta Tests, by clicking here: store.enmasse.com. Additionally, gamers who sign up at TERA-online.com may be chosen at random to participate in the upcoming Beta Tests.

To further celebrate the upcoming launch of this innovative game, En Masse Entertainment is debuting a new series of videos featuring the “MMO-FO,” which will be ongoing throughout the Closed Beta period. This video series, starring mixed martial arts legend Bas Rutten, brings the concept of action combat to life as only Bas can. the first “MMO-FO” video can be viewed here, and downloaded below.

the recipient of multiple industry honors and accolades, TERA is a new breed of online game that combines all the depth of a traditional MMO with the visceral gratification of an action game. in TERA, players must actively aim, dodge and block, as the game’s real-time combat system depends not on stats, but on player skill. After creating a customized character from one of seven races and eight classes, players enter a world of savage beauty, joining an armed alliance in a bid to save the world from ravaging armies who threaten to destroy their lives, their world, and their reality.

ASSETS: the all-new “MMO-FO” video, as well as screenshots and box art for TERA, can be found at: ftp.oneprstudio.com Login: EME_media PW: ActionMMOs_rulz! Folder: TERA Beta Release Assets

En Masse Entertainment will be releasing more information in the coming weeks on TERA and Beta Events, which will help to ready the game for its inaugural release in North America on may 1st. for more information on TERA, please visit TERA-online.com.

TERA is developed by Bluehole Studio(TM), co-produced and published by En Masse Entertainment in North America and distributed at retail by Atari.

About En Masse Entertainment

En Masse Entertainment is an online game publisher based in Seattle, Washington. the company’s mission is to use its expertise to bring stellar online games to new markets. TERA, En Masse’s inaugural Action MMORPG project, is being developed by Bluehole Studio, Inc. for launch in spring 2012. the close-knit team at En Masse includes experts in online technology, game production, branding, community, and localization, allowing them to bring online games to Western audiences at the highest levels of quality and cultural relevance. for more information, visit EnMasse.com.

About Bluehole Studio

Headquartered in Seoul, South Korea, Bluehole Studio, Inc. aspires to become the preeminent global MMORPG developer through its unwavering belief in its people and its core values. Bluehole formed in 2007 with a focus on attracting pioneers and innovators with a shared vision to create the next flagship MMO for the global market. the studio’s inaugural title, TERA(TM), has successfully launched in Korea and features a dynamic battle system, next-generation graphics, and a gamer-centric community experience. for more information, visit http://bluehole.net/english/main.html .

Atari Group is a global creator, producer and publisher of interactive entertainment. Atari’s brands and content are available across all key traditional and digital distribution touch points, including browser-based and social online platforms, PC, consoles from Microsoft, Nintendo and Sony, and advanced smart phones (i.e. iPhone, Android and RIM devices).

Divisions of Atari, SA include Cryptic Studios, Eden Studios, Atari Interactive, Inc., and Atari, Inc. Atari benefits from the strength of its worldwide brand and its extensive catalogue of contemporary classic game franchises (Asteroids(R), Centipede(R), Missile Command(R), Lunar Lander(R)), original owned franchises (Test Drive(R), Backyard Sports(R), Deer Hunter(R)), MMO games from Cryptic Studios (Star Trek(TM) Online, Champions(TM)), and third party franchises (Ghostbusters(R), Rollercoaster Tycoon(R), Dungeons and Dragons(R)). Atari also leverages the power of its franchises to deliver movies and merchandise to consumers around the world.

for more information please visit: www.atari.com

(C)2011 Atari Europe SASU. All rights reserved.

Atari word mark and logo are trademarks owned by Atari Interactive, Inc.

All trademarks are property of their respective owners.

SOURCE: En Masse Entertainment

ONE PR Studio (for En Masse Entertainment) Jeane Wong or Brian Alexander, 510-893-3271 jeane@oneprstudio.com brian@oneprstudio.com or En Masse Entertainment Aria Brickner-McDonald, 206-805-4100 aria@enmasse.com

Copyright Business Wire 2012

En Masse Entertainment Announces TERA Pre-Orders and Closed Beta Plans

Approximately 192,000 Connecticut Light & Power customers who lost power for days during the Oct. 29 nor’easter will receive a $140.22 credit in their February bills.

The utility announced the results of its post-storm credit program Wednesday.

In the face of intense criticism over its response to the freak snowfall and threats of more state regulation, CL&P parent Northeast Utilities scrambled to improve public relations. NU set aside $10 million for customers whose electricity had not been restored as of noon Nov. 5. When questions were raised about the appropriateness of the amount, the company upped it to $30 million.

Applications were accepted until 5 p.m. Jan. 31.

The utility said 225,000 customers were eligible.

“Our goal was to reach every eligible customer and we made a concerted 10-week effort to meet that commitment,” Jim Muntz, CL&P’s chief operating officer, said in a statement Wednesday. “Many heard from us multiple times through letters and phone calls — it was our way of demonstrating that their opportunity to apply was a priority for us, too.”

For example, in mid-December, Hearst newspapers reported even customers who had not lost power were receiving automated phone calls about the credit.

The credit system was established with help from new York-based attorney Kenneth Feinberg. Feinberg administered compensation funds to victims of the Sept. 11, 2001, terrorist attacks and the 2010 British Petroleum oil spill in the Gulf of Mexico.

Feinberg was quoted in Wednesday’s release from CL&P as praising the storm credit effort.

“The claimants’ response is proof positive of the effectiveness of the company’s outreach,” Feinberg said, noting the 192,000 customers receiving the money represented over 80 percent of those eligible. “In my experience claim fund response rates are typically around 20 percent.”

Gov. Dannel P. Malloy issued his own statement calling the credits “a good first step” but siting the continued need for long-term reforms that improve utility responses to severe storms, such as creating restoration benchmarks and establishing related fines.

“And later this year our Department of Emergency Services and Public Protection will conduct the largest statewide emergency preparedness drill in recent history, so that we know what to do when a real-time situation comes our way,” Malloy said.

CL&P issuing $140 cedits for nor’easter power woes

British Foreign Secretary William Hague and French Foreign Minister Alain Juppé are both flying into New York City for the Jan. 31, United Nations Security Council debate on a European resolution demanding that Syrian President Bashar Assad step down within 15 days. the real intent of the debate is to put the squeeze on Russia and China, who both remain adamant that they will veto any resolution that opens the door for military action and regime change. This was evidenced by typical vicious statements by U.S. UN Ambassador Susan Rice, who once again accused Russia and China of supporting a murderous regime and blocking the international community from fulfilling its responsibilities under the post-Westphalian dogma of "R2P" ("Responsibility to Protect"). British Prime Minister David Cameron was equally explicit, issuing a statement as Hague was en route to New York, that said, in part, "We believe the UN must act to support the people of Syria and that Russia can no longer explain blocking the UN and providing cover for the regime's brutal repression." Russia still has an alternative draft Security Council resolution circulating, that would propose mediation between the Assad government and the opposition, to create a national unity government. Russia has offered to mediate such talks in Damascus, Cairo, or Moscow. the Syrian National Council has rejected the Russian offer.

According to a senior U.S. intelligence source privy to the debate within the U.S. National Security Council, there is a consensus for regime change involving Obama and the National Security Advisor Donilon (and, by some accounts, even Hillary Clinton is going along with this notion that Assad has to go). Britain, France, Saudi Arabia, Qatar and the other Gulf Cooperation Council countries are all on this line, and this is what was behind the withdrawal of the Arab League monitors this past weekend. When Saudi Arabia pulled its personnel out of the monitoring team, Qatar followed suit, and that broke any possibility of the Arab League remaining on the ground.

The source also said that as of now, due to strong continuing opposition from the Joint Chiefs of Staff, there will be no direct U.S. military involvement, beyond the providing of arms, training and logistical and communications support for the Free Syria Army. This means that the most likely prospect is a brutal and prolonged foreign-backed surrogate war to unseat the Assad regime, that could take months or even years.

Lyndon LaRouche noted yesterday in discussions with colleagues that the British are still absolutely committed to provoking a general war against Russia and China, using Iran and Syria as the pretexts. Their timetable has been badly thrown off, by war-avoidance efforts from Russia, China and military institutions in the U.S., Israel and other nations. And now, the acceleration of the disintegration of the British imperial financial system, particularly on continental Europe, is further wrecking havoc.

This week, it should be noted, inspectors from the IAEA are in Iran for at least three days. In a statement today, the Iranian Foreign Ministry announced that the inspectors would be given unfettered access to all nuclear sites they ask to visit. And several very senior inspectors were given visas to participate in this visit, a further encouraging sign that at least Iran is serious about the resumption of the P5+1 talks soon. the senior U.S. source confirmed that direct talks are ongoing to set the date, location and ground rules for those talks. These factors are further delaying the London target date for war, but by days or weeks at the most, according to the source.

UN Security Council Provocation Against Russia and China

LEROY, N.Y. (WIVB) – There’s renewed concerns about contamination in LeRoy in the wake of a mysterious illness. The area where a train derailed in 1970s is in fact contaminated with a toxin.

The Tourette’s-like symptoms affecting at least a dozen teens in Le Roy is now reportedly affecting a 36-year-old woman in the area. Local doctors think the illness is stress related, but speculation is growing that a decades old chemical spill could be connected to the teens uncontrollable tics.

In the 1970s, a train carrying cyanide crystals and trichloroethene, or TCE, derailed about 4 miles away from LeRoy High School, where currently at least 12 teen girls have been diagnosed with conversion disorder, a stress related illness that has tourettes-like symptoms.

About 40 years later, the area where the chemical spill occurred is still contaminated with the cancer causing toxin, TCE.

According to the New York Department of Health, long term exposure of TCE is linked to effects on the central nervous system. If TCE pollutes the air or drinking water, the risk of kidney, liver, and esophagus cancer increases.

TCE has contaminated the ground water in LeRoy, the soil and the bedrock, lasting even decades later. But the EPA says in 2003 people switched from well water to public, so there’s no reason for concern.

Recently famed environmentalist Erin Brockovich sent a team to LeRoy. She has suspicions that the train derailment is connected to the uncontrollable tics effects teens there.

The EPA doesn’t think there’s a connection.

A local neurologist, Dr. David Lichter, examined one of the teens and strongly believes they are suffering from a psychological disorder. to prevent the disorder from progressing, he thinks the attention should be shifted to proper treatment, rather than speculation about environmental links.

Symptoms reportedly effect 36 year old

January 26th, 2012

New GEOLOGY articles posted ahead of print examine the role of climate warming in the Permian-Triassic mass extinction, documentation of one of the first examples of land-based magnetic lineations similar to those that characterize sea-floor spreading centers, evidence that the disappearance of the Indus Valley Civilization around 2000 BC may be linked to a rearrangement of river drainage systems, fossil trees from the Cretaceous that reveal the true magnitude of past climate warmth, and more.

Highlights are provided below. Representatives of the media may obtain complimentary copies of GEOLOGY articles by contacting Christa Stratton at the address above. Abstracts for the complete issue of GEOLOGY are available at geology.gsapubs.org/.

Please discuss articles of interest with the authors before publishing stories on their work, and please make reference to GEOLOGY in articles published. Contact Christa Stratton for additional information or assistance.

Non-media requests for articles may be directed to GSA Sales and Service, .

Climate warming in the latest Permian and the Permian–Triassic mass extinction

Michael M. Joachimski et al., GeoZentrum Nordbayern, Universität Erlangen-Nuremberg, Schlossgarten 5, 91054 Erlangen, Germany. Posted online 23 Jan. 2012; doi: 10.1130/G32707.1.

The Permian-Triassic mass extinction (254 million years ago) represents the most severe biotic extinction in Earth history. the causes of this extinction event are discussed controversially. Catastrophic volcanism in Siberia and related climate warming were suggested as a potential trigger of the faunal crisis. Joachimski et al. document, for the first time, that the temperature in low-latitudinal seas was rising by up to 8 °C parallel to the extinction. This climatic warming is seen as direct consequence of Siberian trap volcanism and related processes culminating in higher greenhouse gas levels. Rapid climate warming in the latest Permian and high temperatures in the Early Triassic may not only have contributed to the faunal decline but also to the slow recovery in the aftermath of the crisis.

Rhenium-osmium isotope systematics and platinum group element concentrations in oceanic crust

Bernhard Peucker-Ehrenbrink et al., Woods Hole Oceanographic Institution, 360 Woods Hole Road, MS 25, Woods Hole, Massachusetts 02543-1541, USA. Posted online 23 Jan. 2012; doi: 10.1130/G32431.1.

Peucker-Ehrenbrink et al. attempt to assess the average concentration of platinum group elements and the isotope composition of osmium in the oceanic crust. They use new data from an ocean crust section exposed in the Oman Mountains together with previously published values for the upper portion of the oceanic crust that was based on cores from the International Ocean Drilling Program. They find that the inventory of platinum group elements is controlled by the lower, cumulate portions of the oceanic crust. These metals are mainly hosted in small accessory minerals, mostly sulfides and metal alloys. Their study confirms long-held (but unproven) views of the behavior of platinum group elements and rhenium during mantle melting and hydrothermal alteration of oceanic crust. It also shows that long storage times in the Earth’s mantle are required to generate isotope signatures observed in some ocean island basalts that are thought to be formed, in part, from contributions from old recycled oceanic crust.

Magnetic stripes of a transitional continental rift in Afar

David L. Bridges et al., Department of Geological Sciences and Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409, USA. Posted online 23 Jan. 2012; doi: 10.1130/G32697.1.

Magnetic stripes parallel to mid-oceanic spreading centers are one of the most significant consequences of sea-floor spreading, and have played an essential role in the establishment of modern plate tectonics theory and the determination of sea-floor spreading rates. Similar magnetic anomaly patterns have not been well documented in continental rifts transitioning into proto-seafloor spreading centers. here, using high-resolution magnetic data that was collected across the Tendaho Graben in the Afar Depression, Ethiopia, Bridges et al. document one of the first examples of land-based magnetic lineations similar in pattern and amplitude to those that characterize sea-floor spreading centers. Bridges et al. revise current thinking from the idea that magnetic stripes are initially produced at the onset of oceanic basin formation. Their findings suggest that these magnetic lineations can form as soon as continental rifting transitions to the rift axis by magma-assisted rifting.

Gas hydrate pingoes: Deep seafloor evidence of focused fluid flow on continental margins

Christophe Serié et al., School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Manchester M13 9PL, UK. Posted online 23 Jan. 2012; doi: 10.1130/G32690.1.

Natural gas hydrates occur widely along deepwater continental margins and represent one of the largest carbon reservoirs on Earth. Methane seeps and associated features represent the venting points between methane sources in the shallow lithosphere and the hydrosphere/atmosphere. Serié et al. have discovered a number of seep-related seafloor mounds in the deepwater Kwanza Basin, offshore Angola, and have interpreted these as submarine gas hydrate pingoes, comparable to hydraulic pingoes commonly found in periglacial environments on land. Detailed seismic interpretation of their size, morphology, and geophysical signatures highlight different development stages associated with the formation and dissociation of shallow gas hydrate, as well as their link to deep-rooted plumbing systems that allow thermogenic fluid migration from several-kilometers-deep sedimentary basins. the occurrence of near-surface massive gas hydrate pingoes has important implications for the understanding of basin de-gassing, hydrate accumulation and dissociation dynamics, gas hydrate resource assessments, and the global carbon cycle.

U-Pb zircon dating evidence for a Pleistocene Sarasvati River and capture of the Yamuna River

Peter D. Clift et al., School of Geosciences, University of Aberdeen, Aberdeen AB24 3UE, UK. Posted online 23 Jan. 2012; doi: 10.1130/G32840.1.

Rivers are important to sustaining human societies, especially those that exist in desert environments where they form a critical part of the water supply. the disappearance of the Indus Valley Civilization from the northwestern edge of the Thar Desert around 2000 BC may be linked to such rearrangement of drainage systems. In this study, Clift et al. used the crystallization ages of zircon sand grains to fingerprint the origin of ancient river sands in the region. They show that around 50,000 years ago the Yamuna River, that now flows east into the Ganges, then flowed west into the Indus via the region of study. They further show that the Sutlej River flowed further south than present allowing the Beas River, now its tributary, to have its own separate course. Capture of the Yamuna to the east is shown to far predate the demise of the Harappan, suggesting a climatic trigger to their end. however, Clift et al. do show that a small river continued to flow through the settlement area until after 2500 BC and that this was abandoned around the time of Harappan demise.

New insights into Archean granite-greenstone architecture through joint gravity and magnetic inversion

Luis a. Gallardo and Nicolas Thebaud, Centre for Exploration Targeting, University of Western Australia, Crawley, WA 6009, Australia. Posted online 23 Jan. 2012; doi: 10.1130/G32817.1.

The study of Archean terranes has been largely bedevilled by (1) scarce outcrops, (2) a complex and overprinted geological structure, and (3) the emplacement of intrusives of varied suites that are incredibly difficult to map at depth. by selecting one of the best studied cratonic areas in the world as a test site, Gallardo and Thebaud demonstrate that these three aspects can be significantly overcome by the sole use of widely available gravity and magnetic data and joint geophysical inversion. This represents a fundamental advancement in tectonic studies and opens vast possibilities for similar tectonic scenarios anywhere in the world.

Cretaceous forest composition and productivity inferred from a global fossil wood database

Emiliano Peralta-Medina and Howard J. Falcon-Lang (corresponding), Department of Earth Sciences, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK. Posted online 23 Jan. 2012; doi: 10.1130/G32733.1.

One hundred million years ago, the Earth was gripped by extreme global warming. a study of over 2000 fossil trees from this time period (known as the Cretaceous) now reveals the true magnitude of past climate warmth. Peralta-Medina and Falcon-Lang compared the width of the annual tree-rings of Cretaceous trees with their modern counterparts (a measure of tree-growth rate). For mid- and high-latitudes, they discovered that fossil trees were growing at twice the modern rate. Their findings show that, one hundred million years ago, the Arctic was forested and had a climate similar to that of present-day London.

The origin of intracellular structures in Ediacaran metazoan embryos

James D. Schiffbauer et al., Nanoscale Characterization and Fabrication Laboratory, Institute for Critical Technology and Applied Science, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA. Posted online 23 Jan. 2012; doi: 10.1130/G32546.1.

The exceptionally preserved animal embryo–like fossils of the Ediacaran Doushantuo Formation, South China, have been the center of recent phylogenetic debate. while the prominent interpretation identifies these fossils as the earliest representatives of the Metazoa, significantly predating the radiation of macroscopic animals during the Ediacaran-Cambrian transition, others have suggested alternative placement within non-metazoan Holozoa or even as giant prokaryotes. These interpretations, however, are complicated by their complex fossilization histories. These fossils show exquisite cellular and potential intracellular details, which provide tantalizing glimpses into cytological structures of early multicellular organisms, but dissecting their preservation is a necessity to distinguish biological features from preservational artifacts. to address this issue, Schiffbauer et al. utilized a micro-to-nanoscale investigatory approach to provide the most detailed views of these fossils to date. Their findings support a two-stage fossilization history, directly impacting the interpretive power of the intracellular structures. the new data show that the intracellular structures are preserved as later-stage void-filling cements and not direct replicas of membrane-bound organelles, thus casting doubt on the non-metazoan Holozoa interpretation based on the behavior of nuclear membrane during nuclear division. Phylogenetic interpretations of these microfossils, then, should be based on more robust features such as cleavage patterns, cell-cell adhesion, and ornamented envelopes. Individually, these features may not constrain the affinity of these fossils, but their combination can be found only in modern animals.

Detecting hydrate and fluid flow from bottom simulating reflector depth nomalies

Matthew J. Hornbach et al., Southern Methodist University, Huffi ngton Department of Earth Sciences, Dallas, Texas 75275-0395, USA. Posted online 23 Jan. 2012; doi: 10.1130/G32635.1.

For more than two decades, researchers have debated the resource potential of methane hydrate (a solid consisting of ice and methane) and whether it is responsible for global warming and ocean acidification. at the crux of this debate is how much methane hydrate truly exists. unfortunately, detecting and quantifying methane hydrate is difficult, and as a result, estimates of methane hydrate vary by orders-of-magnitude. here, using a newly developed 3D thermal modeling technique, Hornbach et al. reveal a new approach for detecting and quantifying methane hydrate in unprecedented detail. This study, located at Hydrate Ridge, offshore Oregon, suggests that heat flow and hydrate concentrations are coupled, and that 3D heat-flow analysis can be used to constrain hydrate quantities in 3D seismic data with meter-scale resolution. Hydrate estimates using this technique are consistent with 1D drilling results, but also reveal new, previously unrecognized swaths of hydrate-rich sediments that have gone undetected due to spatially limited drilling and sampling techniques used in previous studies. the analysis indicates that previous global hydrate estimates based on drilling at this site are low by a factor of ~3, and that we may therefore be significantly underestimating the amount of methane trapped below the world’s oceans.

Boron- and magnesium-rich marine brines at the origin of giant unconformity-related uranium deposits: 11B evidence from Mg-tourmalines

Julien Mercadier et al., Géologie et Gestion des Ressources minérales et énergétiques (G2R), Nancy-Université, CNRS, CREGU, Boulevard des Aiguillettes, B.P. 70239, F-54506, Vandoeuvre-lès-Nancy, France. Posted online 23 Jan. 2012; doi: 10.1130/G32509.1.

In the giant unconformity-related uranium deposits from the Athabasca Basin (Canada), boron- and magnesium-bearing minerals are typically associated with the uranium oxides. Existing models suggest that the boron and the magnesium were leached from surrounding sedimentary or basement rocks, or carried by a basement-derived fluid. In this paper, by Mercadier et al., stable boron isotopic composition of boron- and magnesium-bearing tourmalines from these deposits challenge the previous models by showing that brines of marine origin were the only fluids involved in the formation of the deposits and that they brought most of the boron and magnesium to the ore system.

Seismic constraints on the water flux delivered to the deep Earth by subduction

Brian Savage, Department of Geosciences, University of Rhode Island, 317 Woodward Hall, 9 East Alumni Ave, Kingston, Rhode Island 02881, USA. Posted online 23 Jan. 2012; doi: 10.1130/G32499.1.

For the first time, large quantities of water are identified by Savage throughout the entire length of a descending tectonic plate and an efficient pathway is defined for injecting water into deep Earth, more than 600 km, by the incorporation of sea water. Water is thought to facilitate plate tectonics, but a quantification of the amount of water and thus its effect are poorly known. taking advantage of an anomalous seismic arrival recorded in the Tonga-Fiji subduction zone, the presence, volume, water content, and flux of water in the descending plate is quantified to be many times larger than previous inferences based on surface observations. Water fluxes of this magnitude into the deep Earth will substantially increase the role of water in hypotheses of plate tectonic movements, mantle plumes, and flood basalt activity.

3.8 Ga zircons sampled by Neogene ignimbrite eruptions in Central Anatolia

Jean-Louis Paquette (corresponding) and Jean-Luc Le Pennec, Clermont Université, Université Blaise Pascal, Laboratoire Magmas et Volcans, BP 10448, F-63000 Clermont-Ferrand, France. Posted online 23 Jan. 2012; doi: 10.1130/G32472.1.

Dating the oldest terrestrial rocks and minerals allows constraining the age and formation conditions of the ancient basement of our present-day continents. the oldest rocks, with ages ranging from 3.8 to 4.0 billion years old, have been identified in Canada, while Australian zircon crystals dated at 4.4 billion years old represent the oldest dated minerals on Earth. the exceptional resistance of zircons grains to repeated geological cycles has allowed dating 3.3 to 3.9 billion year old crystals in several Archean cratons worldwide. Identifying new, scarce, but essential witnesses to this primitive Earth is still a challenging goal. In Central Anatolia (Turkey), thick volcanic deposits were produced by large-scale explosive eruptions. during magma residence and ascent, basement enclaves may be scavenged and mixed with the magma. here, Paquette and Pennec show that an explosive eruption from Central Anatolia dated at 5.4 million years ago has sampled very old zircon grains ranging from 2.3 to 3.8 billion years old. This is the first documented occurrence of Early Archean zircon crystals sampled by a recent volcanic event. These Central Anatolian zircons are among the oldest discovered on Earth and imply the presence at depth of remnants of an Early Archean basement which was hitherto unknown in Eurasia.

Splay faults imaged by fluid-driven aftershocks of the 2004 Mw 9.2 Sumatra-Andaman earthquake

Felix Waldhauser et al., Lamont-Doherty Earth Observatory, Columbia University, Palisades, New York 10964, USA. Posted online 23 Jan. 2012; doi: 10.1130/G32420.1.

ABSTRACT: High-precision teleseismic double-difference locations and focal mechanisms of aftershocks of the a.D. 2004 magnitude 9.2 Sumatra-Andaman earthquake illuminate an active imbricate fault system in the accretionary prism offshore northern Sumatra. They reveal repeated failure of a shallow northeast-dipping thrust fault above the megathrust, which Waldhauser et al. interpret to be the reactivation of a splay fault that rises from the megathrust at ~55 km depth and cuts through the overriding Sunda plate. the projected intersection of the splay fault with the seafloor correlates with a recently active thrust fault seen in postseismic bathymetry data west of the Aceh basin. a spatiotemporal analysis of the streaky aftershock distribution indicates that ascending fluids released from the subducting oceanic crust along inherited seafloor fabric may control brittle fracture in the overriding plate. Waldhauser et al. speculate that if the splay fault was active coseismically, it may have led to amplified vertical uplift of the forearc ridge and contributed to generating the cataclysmic near-field tsunami that struck the northwest Sumatra coast following the 2004 rupture.

Spatiotemporal analysis of channel wall erosion in ephemeral torrents using tree roots—An example from the Patagonian Andes

Markus Stoffel et al., Laboratory of Dendrogeomorphology, Institute of Geological Sciences, University of Bern, Baltzerstrasse 1+3, CH-3012 Bern, Switzerland. Posted online 23 Jan. 2012; doi: 10.1130/G32751.1.

This paper presents absolute ages for flash floods and related sediment entrainment in headwater catchments to construct a spatio-temporal framework of process dynamics and location of hotspots of channel-wall erosion. the most reliable method for dating erosion is through dendrogeomorphic studies of exposed tree roots. Based on the analysis of erosion signals in root-ring records, Stoffel et al. documented a time series of channel-wall erosion and successfully dated 21 erosive flash flood events since AD 1870 in an ephemeral gully in the Patagonian Andes. the study was performed with roots from Austrocedrus chilensis, Nothofagus dombeyi and Pseudotsuga menziesii. Results demonstrate the potential of root analyses for the determination of hotspots of sediment entrainment. In addition, Stoffel et al. show that the position of damage within individual root rings allows inferences about the seasonal timing of impact and thus an assessment of possible meteorological triggers of erosive events—short intense storms occurring primarily in austral Fall and late Winter in the present case. the approach presented adds significantly to the documentation of sediment entrainment and facilitates identification of areas of rapid erosion in small, remote headwater catchments with ephemeral flash flood activity.

Splay fault slip during the Mw 8.8 2010 Maule Chile earthquake

Daniel Melnick et al., Institut für Erd- und Umweltwissenschaften and DFG Leibniz Center for Surface Process and Climate Studies, Universität Potsdam,14415 Potsdam, Germany. Posted online 23 Jan. 2012; doi: 10.1130/G32712.1.

Splay faults are thrusts that emerge from the plate boundary of subduction zones. such structures have been mapped at several convergent margins and their activity commonly ascribed to large earthquakes. however, the behavior of splay faults is poorly constrained because typically these structures are located offshore and are difficult to access. here we use geologic mapping combined with space and land geodesy, as well as offshore sonar data from Isla Santa María in south-central Chile (37°S) to document deformation during the magnitude 8.8 Maule earthquake of February 27, 2010. the earthquake tilted the island and normal faults ruptured the surface and adjacent ocean bottom. Melnick et al. associate these deformation features with a blind thrust fault rooted in the Nazca–South America plate boundary, which slipped during the Maule earthquake. Their field observations support the notion that splay faulting may frequently complement and influence the rupture of subduction-zone earthquakes.

Onset of North Atlantic Deep Water production coincident with inception of the Cenozoic global cooling trend

Michael W. Hohbein et al., Hess Corporation, Houston, Texas 710, USA. Posted online 23 Jan. 2012; doi: 10.1130/G32461.1.

Thermohaline circulation within the global oceans is intimately linked to the global climate. These ocean currents deposit and rework sediments, forming contourite sediment drifts, and analysis of these sediment bodies provides a means of reconstructing the history of the water mass circulation. This study, by Hohbein et al., utilizes seismic and borehole data to identify a large contourite drift body in the Faeroe Shetland Basin, a key gateway for present day circulation of cold deep water (North Atlantic Deep Water) from the high latitude oceans into the North Atlantic. Borehole calibration of the drift dates the onset of a southerly flowing modern style North Atlantic Deep Water mass through the Faeroe Shetland Basin at close to the early to middle Eocene boundary. This timing of onset for deep water circulation coincides closely with independent evidence for major changes in global deep water circulation patterns and biological productivity, and suggests that initiation of North Atlantic Deep Water production had a strong link to Cenozoic global climate evolution.

A 2400 yr Mesoamerican rainfall reconstruction links climate and cultural change

Matthew S. Lachniet et al., Department of Geoscience, University of Nevada−Las Vegas, 4505 Maryland Parkway, Las Vegas, Nevada 89154, USA. Posted online 23 Jan. 2012; doi: 10.1130/G32471.1.

Lachniet et al. used stalagmites to unveil a 2500-year climate history from southwestern Mexico. This discovery, coupled with archaeological evidence, links the rise and fall of ancient Mesoamerican civilizations to changing rainfall. Lachniet et al. analyzed a stalagmite from Juxtlahuaca Cave in the Mexican state of Guerrero. the cave is in the core region of the North American Monsoon, a climate phenomenon that is primarily responsible for rain in most of Mexico. the cave was also a great source for stalagmites; common cave formations formed over thousands of years as minerals from water droplets crystallize and accumulate. much like tree rings, they can accurately record the rainfall history. above average rainfall between the first and third centuries, for example, coincided with the rise of the largest early Mesoamerican city of Teotihuacan. at its peak, more than 125,000 people lived around the massive pyramids in the highly developed city. Conversely, a 500-year drying trend, including a drought of more than 150 years, coincided with rapid population decline in Teotihuacan around 550 CE. the drought likely impacted spring-fed agriculture practices in the semi-arid Mexican Highlands.

Global decline in ocean ventilation, oxygenation, and productivity during the Paleocene-Eocene Thermal Maximum: Implications for the benthic extinction

Arne M.E. Winguth et al., Department of Earth and Environmental Sciences, University of Texas at Arlington, 500 Yates Street, Arlington, Texas 76019, USA. Posted online 23 Jan. 2012; doi: 10.1130/G32529.1.

The Cenozoic era, the last 65 million years of Earth’s history, is an ideal geologic time interval to understand key relationships between the climate and the global carbon cycle. One of the most prominent global warming events in the Cenozoic occurred at the Paleocene-Eocene boundary (55 million years ago), referred to as the Paleocene-Eocene Thermal Maximum (PETM), and is characterized by rapid perturbations of the global carbon cycle and a wide-spread extinction of deep-sea foraminifera. In this study, Winguth et al. explored the environmental changes caused by a massive carbon input at the PETM by comparing sedimentary records with results from a comprehensive climate-carbon cycle model. the climate simulations indicate that the extinction of deep-sea foraminifera at the PETM was probably caused by multiple environmental changes, including ocean acidification, lowered oxygen levels in the deep-sea, and a globally reduced food supply.

Near-tropical Early Eocene terrestrial temperatures at the Australo-Antarctic margin, western Tasmania

Raymond J. Carpenter et al., School of Earth and Environmental Sciences, University of Adelaide, SA 5005, Australia. Posted online 23 Jan. 2012; doi: 10.1130/G32584.1.

This paper, by Carpenter et al., presents strong evidence from well-dated plant fossils that land temperatures akin to those now experienced in tropical latitudes occurred in Tasmania, Australia in the Early Eocene global greenhouse climate of about 50 million years ago. This is remarkable given that during the Early Eocene the region lay at approximately 65 degrees south, near the edge of the current Antarctic ice sheet. the fossil leaves were typically very large, and warm climate specialists such as cycads, mangroves, and broad-leaved conifers were identified. the fossils also typically belong to lineages that are now well-represented in Australasian tropical and subtropical rainforests. overall, the Tasmanian plant fossils provide important independent support for recent conclusions derived from marine fossils that nearby ocean temperatures were extremely warm, perhaps warmer than those experienced anywhere else at high latitudes in the Early Eocene. moreover, the Tasmanian study represents another example of how profound global climate changes can be over time.

Sea-level fall, carbonate production, rainy days: How do they relate? Insight from Triassic carbonate platforms (Western Tethys, Southern Alps, Italy)

Fabrizio Berra, Università degli Studi di Milano, Dipartimento di Scienze della Terra “A. Desio”, Via Mangiagalli 34, 20133 Milan, Italy. Posted online 23 Jan. 2012; doi: 10.1130/G32803.1.

In a study by Berra, the interplay between sea-level, climate, and environmental changes can be deciphered in favorable settings of the geological record. In the Western Tethys the effects of two major sea-level falls are recorded on Triassic carbonate platform top and basins. These sea-level falls are coupled with a shift from carbonate to siliciclastic deposits which reflect different climate sensitive facies (arid before and humid after) that can be traced up to Central Europe. the association of sea-level fall, demise of carbonate factories and climate change supports that a global cooling event triggered a shift from arid/semi-arid conditions during warm periods to semi-humid/humid conditions. Climate changes markedly affect precipitation patterns between 25° and 35° latitude, corresponding to the paleolatitude of the continental area to the north of the studied platforms. Sea-level fall and increased rainfall document a global cooling event which caused the shift of the depositional environment and changes in sediment composition. the control of global climate changes on sea-level fall, rainfall distribution, and demise of carbonate production highlights how, (1) climate changes may interact with sedimentation and (2) the sequence stratigraphic evolution of a sedimentary succession can be affected by climate-driven sedimentological changes interacting with the shift of base level.

CO2-depleted warm air venting from chrysotile milling waste (Thetford Mines, Canada): Evidence for in-situ carbon capture from the atmosphere

Julie Pronost et al. (Georges Beaudoin, corresponding), Département de Géologie et Génie Géologique, Université Laval, 1065 Avenue de la Médecine, Québec, Québec G1V 0A6, Canada. Posted online 23 Jan. 2012; doi: 10.1130/G32583.1.

Diffuse, warm air vents at the surface of a chrysotile mining waste heap at the Black Lake Mine, Thetford Mines, Québec, Canada. the venting areas form snow-free areas of unfrozen ground. the temperature and chemical composition of the warm air vents have been monitored for more than one year, from March 2009 to July 2010. the temperature of the warm air and ground surface at the venting sites ranged from 6.6 to 20.0 °C. In winter, the warm air has low CO2 content, between 10 and 18 ppm CO2 but has otherwise normal atmospheric gas composition. In summer, the venting areas are more diffuse, and less depleted in CO2 (260� ppm). Frozen ground is likely focusing airflow in winter compared to summer. Air enters the steep flanks of the chrysotile mining waste heap, into which CO2 reacts with Mg-rich minerals, stripping CO2 from air by exothermic mineral carbonation reactions. Pronost et al. estimate that the Black Lake Mine heap passively captures at least 0.6 kt CO2 per year.

Energetics of normal earthquakes on dip-slip faults

David Dempsey et al., Department of Engineering Science, University of Auckland, Private Bag 92019, Auckland Mail Centre, Auckland, New Zealand. Posted online 23 Jan. 2012; doi: 10.1130/G32643.1.

Earthquakes occurring on faults in regions of extension are accompanied by a loss of elevation along one side of the fault. This paper, by Dempsey et al., explores the role of gravity in assisting, or resisting, displacement of the crust during these types of earthquakes. a computational model describes seismic deformation around a hypothetical fault, including storage and release of elastic and gravitational energy, and dissipation of energy by fault friction and other mechanisms. the model demonstrates that, during an earthquake, uplift on one side of the fault is driven by a source of elastic energy at depths of 6 to 8 km. In contrast, on the other side of the fault, elastic energy is stored as the subsiding crust compresses the rock below. Associated with these localized fault phenomena is a low-level, but widespread, compression of the near surface of the crust, which might be associated with increased spring or stream flow following an earthquake.

Burgess shale−type biotas were not entirely burrowed away

Robert R. Gaines et al., Geology Department, Pomona College, 185 E. Sixth Street, Claremont, California 91711, USA. Posted online 23 Jan. 2012; doi: 10.1130/G32555.1.

Burgess Shale–type fossil assemblages provide the foundation for our understanding of the Cambrian Explosion, and therefore comprise a particularly valuable piece of the fossil record. Curiously, this type of preservation, once widespread, suffered a drastic decline after the Cambrian period. until now, conventional wisdom has held that these exquisitely preserved fossil assemblages were literally “burrowed away” from the fossil record by increasing activity of burrowing organisms. In a study by Gaines et al., new drill cores through the Chengjiang as well as data from the Burgess Shale and other principal deposits from around the world demonstrate that Burgess Shale–type fossil assemblages were not simply burrowed away. Escalating bioturbation would have greatly limited the geographic and stratigraphic ranges of Burgess Shale–type biotas, however, increasing burrowing activity would not have affected the most richly fossiliferous portions of the Burgess Shale and the Chengjiang, the two most important deposits. These findings emphasize the role of widespread oxygen deficiency in offshore environments of the Cambrian oceans in promoting exceptional fossil preservation, in part, by restricting burrowers from the sites of deposition. while widespread oxygen deficiency may have assisted in extraordinary preservation, it also may have placed limits on animal evolution during the Cambrian period.

Provided by Geological Society of America

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