News tagged with bedrock

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Scientists propose Antarctic location for 'missing' ice sheet

Aug 25, 2009 | 3.5 / 5 (2) | 0

New research by scientists at UC Santa Barbara indicates a possible Antarctic location for ice that seemed to be missing at a key point in climate history 34 million years ago. The research, which has important ...

As Ice Melts, Antarctic Bedrock Is on the Move

Space & Earth / Earth Sciences

Dec 15, 2008 | 4 / 5 (10) | 3

As ice melts away from Antarctica, parts of the continental bedrock are rising in response -- and other parts are sinking, scientists have discovered.

Bedrock of a holy city: the historical importance of Jerusalem's geology

Space & Earth / Earth Sciences

Oct 19, 2009 | 3.8 / 5 (4) | 1

Jerusalem's geology has been crucial in molding it into one of the most religiously important cities on the planet, according to a new study.

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West Antarctic ice sheet may not be losing ice as fast as once thought

Space & Earth / Earth Sciences

Oct 19, 2009 | 4.1 / 5 (10) | 4

New ground measurements made by the West Antarctic GPS Network (WAGN) project, composed of researchers from The University of Texas at Austin, The Ohio State University, and The University of Memphis, suggest ...

Researchers find oldest rocks on Earth

Space & Earth / Earth Sciences

Sep 25, 2008 | 4.2 / 5 (18) | 3

Canadian bedrock more than four billion years old may be the oldest known section of the Earth's early crust. Scientists at the Carnegie Institution used geochemical methods to obtain an age of 4.28 billion ...

Melting threat from West Antarctic Ice Sheet less than previously believed

Space & Earth / Earth Sciences

May 14, 2009 | 4.2 / 5 (14) | 9

(PhysOrg.com) -- While a total or partial collapse of the West Antarctic Ice Sheet as a result of warming would not raise global sea levels as high as some predict, levels on the U.S. seaboards would rise 25 percent more ...

3.2-Million-Year Temperature History from Tiny Fossils

Space & Earth / Earth Sciences

Aug 05, 2009 | 3.8 / 5 (12) | 5

(PhysOrg.com) -- People often talk about greenhouse gases and their effect on the earth's climate as if those effects were new. But greenhouse gases have been around for hundreds of millennia, playing a key ...

Research discovers underground pockets of water, natural gas

Space & Earth / Earth Sciences

Oct 14, 2009 | 4 / 5 (8) | 1

(PhysOrg.com) -- Look out below! That's the warning a University of Alberta geophysics researcher has for hydrocarbon and water drillers after discovering uncharted land forms beneath the surface of the province. Deep valleys, ...

MIT tool determines landslide risk in tropics

Space & Earth / Earth Sciences

Jun 26, 2007 | 5 / 5 (3) | 0

Engineers at MIT have devised a simple yet effective system for determining an area's landslide risk, a tool that could help planners improve building codes, determine zoning and strengthen mitigation measures in mountainous ...

Artist's concept of Mars Exploration Rover

Mars rovers continue to explore and amaze

Space & Earth /

Dec 05, 2005 | 4.5 / 5 (11) | 0

NASA's durable twin Mars rovers have successfully explored the surface of the mysterious red planet for a full Martian year (687 Earth days). Opportunity starts its second Martian year Dec. 11; Spirit started ...

As a river runs through it, a Death Valley stream offers insights into flooding and climate change

Space & Earth / Space Exploration

Jan 30, 2008 | 4.1 / 5 (8) | 0

Death Valley may be known by its three superlatives: hottest, driest, and lowest – as in temperature, rainfall, and elevation in the United States. But it was the flow of water through the National Park that ...

West Antarctic ice comes and goes, rapidly

Space & Earth / Earth Sciences

Mar 18, 2009 | 4.3 / 5 (16) | 8

Researchers today worry about the collapse of West Antarctic ice shelves and loss of the West Antarctic ice sheet, but little is known about the past movements of this ice. Now climatologists from Penn State ...