News tagged with sedimentary record
Arctic climate under greenhouse conditions in the Late Cretaceous
Space & Earth / Earth Sciences
Jul 09, 2009 |
3.5 / 5 (10) |
1
New evidence for ice-free summers with intermittent winter sea ice in the Arctic Ocean during the Late Cretaceous - a period of greenhouse conditions - gives a glimpse of how the Arctic is likely to respond ...
New Blow for Dinosaur-Killing Asteroid Theory
Space & Earth / Earth Sciences
Apr 27, 2009 |
4.4 / 5 (29) |
14
(PhysOrg.com) -- The enduringly popular theory that the Chicxulub crater holds the clue to the demise of the dinosaurs, along with some 65 percent of all species 65 million years ago, is challenged in a paper ...
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Hot springs microbes hold key to dating sedimentary rocks, researchers say
Space & Earth / Earth Sciences
Jan 22, 2008 |
4.2 / 5 (13) |
0
Scientists studying microbial communities and the growth of sedimentary rock at Mammoth Hot Springs in Yellowstone National Park have made a surprising discovery about the geological record of life and the environment.
The adherence mechanism of red algae to the rocks is discovered
Aug 03, 2009 |
4 / 5 (1) |
0
Geologists of the University of Granada, Spain, have described for the first time ever the biological mechanism that explains how calcareous red algae grow on rocky substrates.
Andes Mountains Are Older Than Previously Believed
Space & Earth / Earth Sciences
May 15, 2009 |
4.9 / 5 (7) |
1
(PhysOrg.com) -- The geologic faults responsible for the rise of the eastern Andes mountains in Colombia became active 25 million years ago—18 million years before the previously accepted start date for the ...
Bias in the rock record?
Space & Earth / Earth Sciences
Jan 14, 2009 |
3.8 / 5 (6) |
0
(PhysOrg.com) -- The fossil record is known to be biased by the unevenness of geographical and stratigraphical sampling, and the lack of exposed rocks containing fossils. In a recent Perspective in Science [2 Jan ...
Sedimentary records link Himalayan erosion rates and monsoon intensity through time
Space & Earth / Earth Sciences
Nov 10, 2008 |
3 / 5 (5) |
0
Throughout history, the changing fortunes of human societies in Asia have been linked to variations in the precipitation resulting from seasonal monsoons.
Geologic Findings Undermine Theories of Permian Mass Extinction Timing
Space & Earth / Earth Sciences
Mar 02, 2009 |
4 / 5 (19) |
3
(PhysOrg.com) -- New scientific findings by geologist Robert Gastaldo of Colby College in Waterville, Maine, and colleagues call into question popular theories about the largest mass extinction in Earth's ...
Sedimentary records link Himalayan erosion rates and monsoon intensity through time
Space & Earth / Earth Sciences
Nov 09, 2008 |
4.6 / 5 (8) |
0
Throughout history, the changing fortunes of human societies in Asia have been linked to variations in the precipitation resulting from seasonal monsoons. A new paper published in the British journal Nature Geoscience sugges ...
Iron isotopes as a tool in oceanography
Space & Earth / Earth Sciences
Jul 31, 2009 |
3.7 / 5 (3) |
1
New research involving scientists from the National Oceanography Centre, Southampton (NOCS) highlights the potential utility of iron isotopes for addressing important questions in ocean science. The findings are published ...
As waters clear, scientists seek to end a muddy debate
Space & Earth / Earth Sciences
Dec 13, 2007 |
4.5 / 5 (11) |
0
Geologists have long thought muds will only settle when waters are quiet, but new research by Indiana University Bloomington and Massachusetts Institute of Technology geologists shows muds will accumulate ...
Ancient volcano may have caused mass extinction
Space & Earth / Earth Sciences
May 28, 2009 |
4.3 / 5 (18) |
0
A previously unknown giant volcanic eruption that led to global mass extinction 260million years ago has been uncovered by scientists at the University of Leeds.
List of search results for sedimentary record
