AGU journal highlights - 29 July 2004
...estigations of earthquakesource parameters and the crustal structure near the SAFOD site. A second sectionwill run in a separate issue and will include studies of the mineralogy, mechanicaland physical properties of rock adjacent to the 2.2-kilometer [1.4 mile] -deepborehole. The researchers propose that the...15-foot hypodermic needles provide evidence for vast oceanic crustal biosphere
...t-loving microbes, samples of fluid drawn from the crustal rocks that make up most of the Earth's seafloor ar...a strong indication the scientists were sampling a crustal environment and that their samples were not contaminated with bottom seawater. Another important co...Research finds life 1000 feet beneath ocean floor
...he seafloor, for testing and characterization, the crustal fluids from far below. "People have wondered for a long time what types of organisms might live within Earth's crust," Giovannoni said. "This has given us one of the best looks we've ever had at that environment." The researchers found organisms gr...January GSA BULLETIN media highlights
...reland basin development and the history of Andean crustal shortening in Bolivia Peter G. DeCelles, Department of Geosciences, University of Arizona, Tucson, Arizona 85721, USA, and Brian K. Horton, Department of Earth and Space Sciences, University of California, Los Angeles, California 90095 USA. Pages 58...January GEOLOGY and GSA TODAY media highlights
...ent periods of vertical coupling and decoupling of crustal layers. (3) Late orogenic extension was driven by plate interactions rather than by gravitational forces and a weak lower crust. This study also shows that the approach of using parallel field, laboratory, and experimental studies is important for un...February media highlights - GSA Bulletin
... entire Puget Lowland in order to learn more about crustal faults and the geologic underpinnings of the region. The pattern of magnetic anomalies over Seattle reflects the complex geology of the Seattle fault zone, which extends east-west along the southern margin of the Seattle basin beneath Puget Sound and...January media highlights-GSA Bulletin
...scissors-like northeast-southwest compression on a crustal block located between the north-trending Adams Run fault west of Charleston and the northwest-trending Charleston fault north of Charleston. Ages of the Steens and Columbia River flood basalts and their relationship to extension-related calc-alkali...January media highlights: GEOLOGY and GSA TODAY
... have an extremely low elevation considering their crustal thickness (the crust there is almost as thick as the crust of the Alps but the elevation is less than one-half that of the Alps). The author proposes that although seismologic studies indicate that the cold mantle body under the southeast Carpathians...December media highlights - GSA BULLETIN
...d Pacific plates are in collision. This results in crustal thickening manifested as the coastal ranges, including the Diablo Range. The amount of convergence required to build the mountains indicates that the present episode of plate motion has persisted for about 10 million years. Along a segment just nort...December Media Mighlights: GEOLOGY and GSA TODAY
...ks may have geologic affinities to the neighboring crustal rock section. Therefore, they argue that these rocks are not far-traveled as previously interpreted. They speculate that other appropriate analogs elsewhere in the western Cordillera may not be far-traveled either. Sediment and rock strength contro...Research season will feature use of sophisticated technologies to map Antarctica
...ing a major gap in coverage among several discrete crustal blocks that make up West Antarctica - a critical area of potential bedrock movements. INTERNATIONAL TRANSANTARCTIC SCIENTIFIC EXPEDITION (ITASE): The U.S. component of the multi-year International TransantarcticScientific Expedition (U.S. ITASE) wil..."Microbes deep within South African gold mines" subject of NSF lecture
...s have identified microbial communities in various crustal environments down to 2,800 meters below the surface. Only a very few samples of deep-living microbes in continental (non-oceanic) crust exist, however, because coring is expensive. The gold mines of South Africa provide a unique opportunity to study...February media highlights: Geology and GSA today
...on Io: A model for formation of mountain blocks by crustal heating, melting, and tilting. William B. McKinnon...entrations of volcanoes. Strong tidal heating and crustal disruption are also seen on the neighboring moon Europa, creating what are called "chaos regions." ...Geological Society of America: Annual Meeting 2000
...Physics Laboratory, Folds on Europa: Insights into crustal cycling. FRONTIERS IN GAS HYDRATE RESEARCH I AND II (T2) Sponsored by the Geochemical Society RSCC Room B5, Mon., Nov. 13, 8:00 a.m.-12:00p.m. and 1:30p.m.-5:30p.m. Speakers include: Jeffrey S. Kargel, U.S. Geological Survey, Gas Hydrates ...October Geology and GSA Today highlights
...tic Mobile Belt actually comprises three different crustal fragments recording three distinct collision events at approximately 1300, 1100, and 1000 million years ago, and that these three fragments were juxtaposed during the amalgamation ofGondwana 500 million years ago. It follows that the concept of a si...June 'Geology' and 'GSA Today' highlights
...hat serve to accommodate both transform motion and crustal extension. The points of rupture that produce earthquakes are restricted to depths of more than 5 km along the trace of the single buried transform fault. At shallower depths in the tulip-shaped fault zone, deformation appears to proceed by aseismic......this site along the East Pacific Rise, the Earth's crustal plates are movingapart, creating hydrothermal vents and geysers that spew a hot, toxic brew ofhydrogen sulfide and heavy metals into the sea. Here, the four-inch-long Pompeiiworm, covered with fuzzy bacteria, builds its home. Cary and his colleagues...Limits Of Life On Earth: Are They The Key To Life On Other Planets?
...s have identified microbial communities in various crustal environments down to 9,200 feet below the earth's surface. Very few microbial samples exist from deep within continental crust, because coring is expensive. But now Tullis Onstott of Princeton University has uncovered a unique opportunity to study......t not science-fiction fast," saysWard, noting that crustal movements around Indonesia also are rapid. ...says, must have slipped its way north along agiant crustal fault stretching from California to British Columbia. However,critics say, there is no evidence of s...