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Latest Carbonate Stories

Image 1 - Researchers Take Temperature Of Mars's Past
2011-10-13 04:19:02

Researchers at the California Institute of Technology (Caltech) have directly determined the surface temperature of early Mars for the first time, providing evidence that's consistent with a warmer and wetter Martian past. By analyzing carbonate minerals in a four-billion-year-old meteorite that originated near the surface of Mars, the scientists determined that the minerals formed at about 18 degrees Celsius (64 degrees Fahrenheit). "The thing that's really cool is that 18 degrees is not...

2011-09-07 15:30:00

TSX: RES & NYSE AMEX: REE -- Pilot Plant testing of oxide resource begins -- Overall 80-85% recovery predicted from test program -- Further testing planned on oxide-carbonate and stockwork mineralization -- Initial testing of heavy rare earth-enriched mineralization to begin in Q4. LAKEWOOD, CO, Sept. 7, 2011 /PRNewswire/ - Rare Element Resources Ltd. (TSX: RES and NYSE-AMEX: REE) (the "Company") announces the...

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2011-03-08 14:13:35

Rocks on Mars dug from far underground by crater-blasting impacts are providing glimpses of one possible way Mars' atmosphere has become much less dense than it used to be. At several places where cratering has exposed material from depths of about 5 kilometers (3 miles) or more beneath the surface, observations by a mineral-mapping instrument on NASA's Mars Reconnaissance Orbiter indicate carbonate minerals. These are not the first detections of carbonates on Mars. However, compared to...

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2011-01-20 10:13:45

By Anne M Stark, LLNL Using seawater and calcium to remove carbon dioxide (CO2) in a natural gas power plant's flue stream, and then pumping the resulting calcium bicarbonate in the sea, could be beneficial to the oceans' marine life. Greg Rau, a senior scientist with the Institute of Marine Sciences at UC Santa Cruz and who also works in the Carbon Management Program at Lawrence Livermore National Laboratory, conducted a series of lab-scale experiments to find out if a seawater/mineral...

2010-11-30 16:58:10

ASU study of endolithic cyanobacteria has implications for coral reefs and mussel aquaculture Geo-microbiologists from Arizona State University have solved a long-standing conundrum about how some photosynthetic microorganisms, endolithic cyanobacteria, bore their way into limestone, sand grains, mussel shells, coral skeletons and other substrates composed of carbonate. According to the lead investigator, ASU professor Ferran Garcia-Pichel, the answer to the mystery of what is "at the heart...

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2010-07-30 08:55:00

Scientists believe that they have found rocks containing the fossilized remains of early life on Mars, according to a new article published in the latest edition of Earth and Planetary Science Letters. According to the report, a team of scientists--led by Dr. Adrian J. Brown of the Search for Extraterrestrial Intelligence (SETI) Institute in California--discovered the rocks in the Nili Fossae region of the "Red Planet." Their research on the hydrothermal formation of clay-carbonate rocks in...

2010-06-03 14:28:00

PASADENA, Calif., June 3 /PRNewswire-USNewswire/ -- Rocks examined by NASA's Spirit Mars Rover hold evidence of a wet, non-acidic ancient environment that may have been favorable for life. Confirming this mineral clue took four years of analysis by several scientists. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) An outcrop that Spirit examined in late 2005 revealed high concentrations of carbonate, which originates in wet, near-neutral conditions, but dissolves in...

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2010-06-03 13:35:00

Rocks examined by NASA's Spirit Mars Rover hold evidence of a wet, non-acidic ancient environment that may have been favorable for life. Confirming this mineral clue took four years of analysis by several scientists. An outcrop that Spirit examined in late 2005 revealed high concentrations of carbonate, which originates in wet, near-neutral conditions, but dissolves in acid. The ancient water indicated by this find was not acidic. NASA's rovers have found other evidence of formerly wet...

2009-03-20 23:01:44

A U.S. biological oceanographer says acidification could be causing a slow-motion destruction of ocean ecosystems. Victoria Fabry, a visiting researcher at Scripps Institution of Oceanography at the University of California, San Diego, said tests show just 48 hours of exposure to slightly corrosive seawater causes mollusc shells to start to dissolve. The university said increasing levels of carbon dioxide could spell ecological disaster to industries dependent on the seas. About a third of...

2008-12-18 13:00:00

SAN FRANCISCO, Dec. 18 /PRNewswire-USNewswire/ -- Researchers using a powerful instrument aboard NASA's Mars Reconnaissance Orbiter have found a long sought-after mineral on the Martian surface and, with it, unexpected clues to the Red Planet's watery past. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) Surveying intact bedrock layers with the Compact Reconnaissance Imaging Spectrometer for Mars, or CRISM, scientists found carbonate minerals, indicating that Mars had...