News tagged with volcanic ash
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Supervolcano eruption -- in Sumatra -- deforested India 73,000 years ago
Space & Earth / Earth Sciences
22 hours ago |
4.4 / 5 (13) |
2
A new study provides "incontrovertible evidence" that the volcanic super-eruption of Toba on the island of Sumatra about 73,000 years ago deforested much of central India, some 3,000 miles from the epicenter, ...
Rich Ore Deposits Linked to Ancient Atmosphere
Space & Earth / Earth Sciences
Nov 19, 2009 |
4.3 / 5 (3) |
0
(PhysOrg.com) -- Much of our planet's mineral wealth was deposited billions of years ago when Earth's chemical cycles were different from today's. Using geochemical clues from rocks nearly 3 billion years old, a group of ...
'No muss, no fuss' miniaturized analysis for complex samples developed
Chemistry / Analytical Chemistry
Nov 18, 2009 |
4.7 / 5 (3) |
0
The goal of an integrated, miniaturized laboratory analysis system, also known as a "lab-on-a-chip," is simple: sample in, answer out. However, researchers wanting to use these microfluidic devices to analyze ...
After mastodons and mammoths, a transformed landscape
Space & Earth / Earth Sciences
Nov 19, 2009 |
4.6 / 5 (12) |
1
(PhysOrg.com) -- Roughly 15,000 years ago, at the end of the last ice age, North America's vast assemblage of large animals -- including such iconic creatures as mammoths, mastodons, camels, horses, ground ...
Paleontologists find extinction rates higher in open-ocean settings during mass extinctions
Space & Earth / Earth Sciences
Nov 19, 2009 |
5 / 5 (1) |
0
Arnie Miller, University of Cincinnati professor of paleontology in the McMicken College of Arts & Sciences, and co-author Michael Foote of the University of Chicago publish their research in the Nov. 20 issue ...
Reference Genome of Maize Published (w/ Podcast)
Nov 19, 2009 |
5 / 5 (1) |
0
(PhysOrg.com) -- A four-year, multi-institutional effort co-led by three Cold Spring Harbor Laboratory scientists culminated today in publication of a landmark series of papers in the journal Science reveal ...
List of search results for volcanic ash
