from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The chemistry of the composition and alterations of the solid matter of the earth or a celestial body.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The branch of chemistry that deals with the chemical composition of the Earth and other planets, and with the chemical processes that occur in the formation of rocks and minerals etc.
from the GNU version of the Collaborative International Dictionary of English
- n. The study of the chemical composition of, and of actual or possible chemical changes in, the crust of the earth.
from The Century Dictionary and Cyclopedia
- n. The chemical study of the earth, that is, the science of its chemical composition and of the chemical causes and effects of terrestrial processes.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the chemistry of the earth's crust
Sorry, no etymologies found.
With the later advent of accelerator mass spectrometry, this has become a useful tool in geochemistry, but our counting techniques were not sensitive enough to make the method work.
Specifically, bachelor's degrees in engineering, business, ecology or hydrology and life sciences such as geochemistry were among educational requirements employers cited most frequently.
It you were to walk up to a living sauropod and put your hand on its side, its temperature would be very similar to your own, said John Eiler, a professor of geology and geochemistry at the California Institute of Technology in Pasadena and co-author of the study.
Mr. Brownlow, who has a Ph.D. in geochemistry, says it takes 407 million gallons to irrigate 640 acres and grow about $200,000 worth of corn on the arid land.
Hevesy from Stockholm received the Nobel Prize for Chemistry for his work on the use of isotopes as tracers, involving studies in inorganic chemistry and geochemistry as well as on the metabolism in living organisms.
As described by British-born Mark Russell, a senior research fellow at the NASA Jet Propulsion Laboratory and a specialist in geochemistry, they have “commanded the high ground for fifty years” and, he argues, have hurt origin-of-life science.
"Biochemistry is geochemistry," Morowitz said from his sunny end of the table.
He graduated from Dartmouth College in New Hampshire in 1957 and received a master's degree in geochemistry from the University of Oklahoma.
In 1983, he received a PhD in environmental geochemistry from the University of Heidelberg.
Sulfur geochemistry of hydrothermal waters in Yellowstone National