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A Tiny Grain Helps Reveal the History of a Rock
March 25, 2013 — Researchers can use the mineral rutile to learn about rock types and their history. Two articles now present a new application of a method for more easily tracing the mineral ... > full story -
First Images Released from Newest Earth Observation Satellite
March 21, 2013 — NASA and the Department of the Interior's U.S. Geological Survey (USGS) have released the first images from the Landsat Data Continuity Mission (LDCM) satellite, which was launched Feb. ... > full story -
Megavolcanoes Tied to Pre-Dinosaur Mass Extinction: Apparent Sudden Climate Shift Could Have Analog Today
March 21, 2013 — Scientists examining evidence across the world say they have linked the abrupt disappearance of half of earth's species 200 million years ago to a precisely dated set of gigantic volcanic eruptions. ... > full storyMore: -
Can Intraplate Earthquakes Produce Stronger Shaking Than at Plate Boundaries?
March 20, 2013 — New information about the extent of the 1872 Owens Valley earthquake rupture, which occurs in an area with many small and discontinuous faults, may support a hypothesis that these types of quakes ... > full story -
Scientists Discover 'Lubricant' for Earth's Tectonic Plates: Hidden Magma Layer Could Play Role in Earthquakes
March 20, 2013 — Scientists have found a layer of liquefied molten rock in Earth's mantle that may be acting as a lubricant for the sliding motions of the planet's massive tectonic plates. The discovery may carry ... > full story -
Slabs of Ancient Tectonic Plate Still Lodged Under California
March 18, 2013 — The Isabella anomaly -- the seismic signal of a large mass of cool, dehydrated material about 100 kilometers beneath central California -- is in fact a surviving slab of the Farallon oceanic plate, ... > full story -
Oxygen-Poor 'Boring' Ocean Challenged Evolution of Early Life
March 18, 2013 — Biogeochemists have filled in a billion-year gap in our understanding of conditions in the early ocean during a critical time in life's history on Earth. During the period 1.8 to 0.8 billion years ... > full story -
Computer Models Show How Deep Carbon Could Return to Earth's Surface
March 18, 2013 — Computer simulations of water under extreme pressure are helping geochemists understand how carbon might be recycled from hundreds of miles below the Earth's ... > full story -
Earth's Interior Cycles Contribute to Long-Term Sea-Level and Climate Change, Researchers Find
March 18, 2013 — Ancient rises in sea levels and global warming are partially attributable to cyclical activity below Earth's surface, researchers have concluded in an analysis of geological studies. However, changes ... > full story -
Ocean Plankton Sponge Up Nearly Twice the Carbon Currently Assumed
March 17, 2013 — Models of carbon dioxide in the world's oceans need to be revised, according to new work. Trillions of plankton near the surface of warm waters are far more carbon-rich than has long been thought, ... > full story
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