News tagged with carbon isotope
Supervolcano eruption -- in Sumatra -- deforested India 73,000 years ago
Space & Earth / Earth Sciences
Nov 23, 2009 |
4.5 / 5 (17) |
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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, ...
Early hominid first walked on two legs in the woods
Other Sciences / Archaeology & Fossils
Oct 08, 2009 |
4.8 / 5 (10) |
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Among the many surprises associated with the discovery of the oldest known, nearly complete skeleton of a hominid is the finding that this species took its first steps toward bipedalism not on the open, grassy ...
Global monsoon drives long-term carbon cycles in the ocean
Space & Earth / Earth Sciences
May 08, 2009 |
4.8 / 5 (5) |
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Monsoon is a global system, and many arrays of evidence indicate that it drives long-term cyclicity of the carbon reservoir in the global ocean. The new view is introduced in a substantial paper in Issue 7 (April 2009) of ...
Researchers Study Cave's 'Breathing' for Better Climate Clues
Space & Earth / Earth Sciences
Mar 09, 2009 |
4.3 / 5 (3) |
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(PhysOrg.com) -- A University of Arkansas researcher studying the way caves "breathe" is providing new insights into the process by which scientists study paleoclimates.
Search results for carbon isotope
New technique put to use to test clean up of contaminated groundwater
Jan 30, 2009 |
4 / 5 (3) |
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Cleaning up the dangerous contaminants — dry-cleaning fluids, solvents and petroleum hydrocarbons — found in underground water presents one of the most urgent challenges facing environmental science. A report issued today ...
New World post-pandemic reforestation helped start Little Ice Age, say Stanford scientists
Space & Earth / Earth Sciences
Dec 18, 2008 |
3.5 / 5 (12) |
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The power of viruses is well documented in human history. Swarms of little viral Davids have repeatedly laid low the great Goliaths of human civilization, most famously in the devastating pandemics that swept ...
New isotope cluster could lead to better understanding of atmospheric carbon dioxide
Space & Earth / Earth Sciences
Jul 14, 2009 |
not rated yet |
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(PhysOrg.com) -- A team of researchers has discovered an unexpected concentration of a certain isotopic molecule in parts of the stratosphere that could have implications for understanding the carbon cycle ...
Isotope analysis reveals foraging area dichotomy for Atlantic leatherback turtles
Biology /
Mar 26, 2008 |
4.7 / 5 (3) |
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The beaches of French Guiana constitute a major reproduction site for leatherback turtles. This sea turtle, although a protected species, is threatened by human activity: it ingests plastics, get accidentally caught in fishing ...
Origins of sulfur in rocks tells early oxygen story
Space & Earth / Earth Sciences
Apr 16, 2009 |
4.5 / 5 (8) |
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(PhysOrg.com) -- Sedimentary rocks created more than 2.4 billion years ago sometimes have an unusual sulfur isotope composition thought to be caused by the action of ultra violet light on volcanically produced ...
Diet, population size and the spread of modern humans into Europe
Other Sciences / Archaeology & Fossils
Aug 11, 2009 |
4 / 5 (4) |
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Stable isotope data published this week in the Proceedings of the National Academy of Sciences by Erik Trinkaus, professor of anthropology at Washington University in St. Louis, and Michael Richards of the University of Bri ...
Researchers find quicker, cheaper way to sort isotopes
Chemistry / Analytical Chemistry
Jun 29, 2009 |
5 / 5 (2) |
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(PhysOrg.com) -- Whether it's the summer grass that tickles your feet or the red Bordeaux smacking on your palette, nearly every part of the world around you carries special chemical markers. These markers, ...
Scientists uncover miscalculation in geological undersea record
Space & Earth / Earth Sciences
Sep 10, 2008 |
4.5 / 5 (28) |
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The precise timing of the origin of life on Earth and the changes in life during the past 4.5 billion years has been a subject of great controversy for the past century. The principal indicator of the amount of organic carbon ...
Iron isotopes as a tool in oceanography
Space & Earth / Earth Sciences
Jul 31, 2009 |
3.7 / 5 (3) |
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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 ...
Methane-eating microbes can use iron and manganese oxides to 'breathe'
Space & Earth / Earth Sciences
Jul 09, 2009 |
4.6 / 5 (5) |
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Iron and manganese compounds, in addition to sulfate, may play an important role in converting methane to carbon dioxide and eventually carbonates in the Earth's oceans, according to a team of researchers ...
List of search results for carbon isotope
