News tagged with isotope fractionation
Origins of sulfur in rocks tells early oxygen story
Space & Earth / Earth Sciences
Apr 16, 2009 |
4.5 / 5 (8) |
2
(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 ...
Search results for isotope fractionation
Nickel isotope may be methane producing microbe biomarker
Space & Earth / Earth Sciences
Jun 22, 2009 |
5 / 5 (2) |
0
Nickel, an important trace nutrient for the single cell organisms that produce methane, may be a useful isotopic marker to pinpoint the past origins of these methanogenic microbes, according to Penn State and University of ...
Wet ethanol production process yields more ethanol and more co-products
Nov 09, 2009 |
1 / 5 (2) |
1
Using a wet ethanol production method that begins by soaking corn kernels rather than grinding them, results in more gallons of ethanol and more usable co-products, giving ethanol producers a bigger bang for their buck - ...
Sulfur signature changes thoughts on atmospheric oxygen
Space & Earth / Earth Sciences
Aug 23, 2006 |
4.7 / 5 (12) |
0
Ancient sediments that once resided on a lake bed and the ocean floor show sulfur isotope ratios unlike those found in other samples from the same time, calling into question accepted ideas about when the Earth’s atmosphere ...
New technique put to use to test clean up of contaminated groundwater
Jan 30, 2009 |
4 / 5 (3) |
0
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 ...
Looking for signs of early life
Space & Earth / Earth Sciences
Jul 08, 2009 |
4 / 5 (9) |
0
(PhysOrg.com) -- Deciphering the very early history of life on Earth is difficult. In the darkest recesses of the first billion years there are no 'body' fossils - no physical remains. Instead, scientists ...
Reactor leak halts Canada isotope work for 3 months
May 28, 2009 |
not rated yet |
1
A Canadian nuclear reactor that produced about a third of the world's supply of medical isotopes has halted operation for three months due to a heavy water leak, authorities said.
'Fingerprinting' method tracks mercury emissions from coal
Oct 08, 2008 |
3.9 / 5 (7) |
1
(PhysOrg.com) -- University of Michigan researchers have developed a new tool that uses natural "fingerprints" in coal to track down sources of mercury polluting the environment. The research is published in today's online ...
Researchers Study Cave's 'Breathing' for Better Climate Clues
Space & Earth / Earth Sciences
Mar 09, 2009 |
4.3 / 5 (3) |
0
(PhysOrg.com) -- A University of Arkansas researcher studying the way caves "breathe" is providing new insights into the process by which scientists study paleoclimates.
The great recycler -- planet Earth
Space & Earth / Earth Sciences
Jun 09, 2007 |
4.3 / 5 (33) |
0
In the current edition of leading science journal Nature, an international team of researchers publishes proof that the Earth recycles portions of its own crust, driving it deep down into the mantle of the ...
New laser technique may help find supernova
Aug 11, 2009 |
4.3 / 5 (3) |
0
One single atom of a certain isotope of hafnium found on Earth would prove that a supernova once exploded near our solar system. The problem is how to find such an atom - among billions of others. Researchers at the University ...
List of search results for isotope fractionation
