(PhysOrg.com) -- NASA's Mars Exploration Rover Opportunity has found bright veins of a mineral, apparently gypsum, deposited by water. Analysis of the vein will help improve understanding of the history of wet environments ...
Space Exploration
Dec 8, 2011
5
0
(PhysOrg.com) -- About 3.8 billion years ago, Earth was teeming with unicellular life. A little more than 4.5 billion years ago, the Earth was a ball of vaporous rock. And somewhere in between, the first organisms spontaneously ...
Earth Sciences
Sep 23, 2011
10
1
(PhysOrg.com) -- In summer 2007, two geologists armed with rock hammers and a shotgun hiked through the Yukon, looking for fossils. For two weeks, Phoebe Cohen, a postdoc in MIT’s Department of Earth, Atmospheric and ...
Paleontology & Fossils
Jun 7, 2011
0
0
Most deep-sea volcanoes produce effusive lava flows rather than explosive eruptions, both because the levels of magmatic gas tend to be low, and because the volcanoes are under a lot of pressure from the surrounding water. ...
Earth Sciences
Mar 28, 2011
2
0
(PhysOrg.com) -- The Earth's magnetic poles flip around every 200,000 years or so, with north becoming south and vice versa. Normally, the process takes 4-5,000 years and it ought to be impossible for the flip to be much ...
A piece of chalk in a laboratory at the University of Stavanger in Norway may be the key to unlock a great mystery. If the mystery is solved, it will generate billions in additional income for the oil industry. Associate ...
Earth Sciences
Apr 24, 2009
8
0
A new report by scientists at Columbia University's Earth Institute and the US Geological Survey points to an abundant supply of carbon-trapping rock in the US that could be used to help stabilize global warming.
Environment
Mar 5, 2009
2
0
A small international team of Earth scientists, geologists and astronomers has conducted a study of Mars morphology and mineralogy and discovered that the planet may have experienced volcanism and crustal recycling during ...
A multi-institutional team of Earth scientists, meteorologists, geologists and volcanologists has developed a new theory to explain the nature of volcanic fountaining. In their project, reported in the journal Nature Communications, ...
Geologists have long known that around 155 million years ago, a 5,000 km long piece of continent broke off western Australia and drifted away. They can see that by the 'void' it left behind: a basin hidden deep below the ...
Earth Sciences
Oct 23, 2023
1
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