Sentences with phrase «isotope geochemist»
An isotope geochemist is a scientist who studies the different forms (isotopes) of elements in rocks, minerals, water, and other natural materials. They analyze the ratios of these isotopes to understand processes like dating rocks, tracing environmental changes, and determining the origins of materials. Full definition
«Isotope geochemists traditionally use Strontium (Sr) isotopes to track the evolution of Earth's mantle and crustal rocks, and its oceans.
sciencedaily.com
Isotope geochemist Mukul Sharma of Dartmouth College in Hanover, New Hampshire, says he has been unable to find any significant amount of platinum - group elements with the distinctive isotopic signature showing that they came from space.
Dr. Ying Cui is a stable isotope geochemist and Earth system modeler in the Department of Earth Sciences at Dartmouth College.
What is disturbing and inexplicable to me, as a former isotope geochemist and thus in the same field as Allegre, is that he was one of the top people in that field for a couple of decades.
«The results show unequivocally that most of the increase in CO2 between 7000 and 500 years ago is due to release of carbon from the ocean, not to axe - wielding humans,» says Eric Steig, an isotope geochemist at the University of Washington in Seattle.
says Daniel Herwartz, an isotope geochemist at the University of Cologne in Germany and a member of the study team.
The new analysis «is an elegant example of how to use the geochemistry of a fossil to infer the behavior and movement of an ancient creature,» says Henry Fricke, an isotope geochemist at Colorado College in Colorado Springs.
Dr Angela Lamb, Isotope Geochemist and lead author of the paper says «The chemistry of Richard III's teeth and bones reveal changes in his geographical movements, diet and social status throughout his life.»
Over the last few decades, isotope geochemists have worked together with tree rings experts to construct a time series of atmospheric 14C variations over the last 10,000 years.
Isotope geochemists have developed time series of variations in the 14C and 13C concentrations of atmospheric CO2.
Dr. Wallace Broecker — isotope geochemist, oceanographer, paleoclimatologist, a «towering scientist,» according to Richard Alley, who is himself one — has 50 years of experience in climate change science to back up that quote.