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Geochemistry --- Isotope geology --- Neodymium --- Géochimie --- Géologie isotopique --- Néodyme --- Geochemistry. --- Neodymium. --- 550.42 --- 546.657 --- Cerium group --- Isotope geochemistry --- Nuclear geochemistry --- Nuclear geology --- Nuclear geophysics --- Stable isotope geology --- Physical geology --- Chemical composition of the earth --- Chemical geology --- Geological chemistry --- Geology, Chemical --- Chemistry --- Earth sciences --- Occurrence and distribution of elements and their isotopes --- Neodymium Nd --- 546.657 Neodymium Nd --- 550.42 Occurrence and distribution of elements and their isotopes --- Géochimie --- Géologie isotopique --- Néodyme
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Studies of Sr isotopic composition of thousands of samples of marine sediments and fossils have yielded a curve of 87Sr/86Sr versus age for seawater Sr that extends back to 1 billion years. The ratio has fluctuated with large amplitude during this time period, and because the ratio is always uniform in the oceans globally at any one time, it is useful as a stratigraphic correlation and age-dating tool. The ratio also appears to reflect major tectonic and climatic events in Earth history and hence provides clues as to the causes, timing, and consequences of those events. The seawater 87Sr/86Sr ratio is generally high during periods marked by continent-continent collisions, and lower when continental topography is subdued, and seafloor generation rates are high. There is evidence that major shifts in the seawater ratio can be ascribed to specific orogenic events and correlate with large shifts in global climate.
Seawater --- Strontium --- Composition. --- Isotopes. --- Analysis.
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The development of multi-collector inductively coupled plasma mass spectrometry (MC-ICPMS) makes it possible to precisely measure non-traditional stable isotopes. This volume reviews the current status of non-traditional isotope geochemistry from analytical, theoretical, and experimental approaches to analysis of natural samples. In particular, important applications to cosmochemistry, high-temperature geochemistry, low-temperature geochemistry, and geobiology are discussed. This volume provides the most comprehensive review on non-traditional isotope geochemistry for students and researchers who are interested in both the theory and applications of non-traditional stable isotope geochemistry.
Isotope geology. --- Geobiology. --- Stable isotopes. --- Isotopes --- Biology --- Earth sciences --- Biosphere --- Isotope geochemistry --- Nuclear geochemistry --- Nuclear geology --- Nuclear geophysics --- Stable isotope geology --- Physical geology
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Volume 77 of Reviews in Mineralogy and Geochemistry focuses on important aspects of the geochemistry of geological CO2 sequestration. It is in large part an outgrowth of research conducted by members of the U.S. Department of Energy funded Energy Frontier Research Center (EFRC) known as the Center for Nanoscale Control of Geologic CO2 (NCGC). Eight out of the 15 chapters have been led by team members from the NCGC representing six of the eight partner institutions making up this center - Lawrence Berkeley National Laboratory (lead institution, D. DePaolo - PI), Oak Ridge National Laboratory, The Ohio State University, the University of California Davis, Pacific Northwest National Laboratory, and Washington University, St. Louis.
Geological carbon sequestration. --- Geochemistry. --- Chemical composition of the earth --- Chemical geology --- Geological chemistry --- Geology, Chemical --- Chemistry --- Earth sciences --- Carbon dioxide --- Geo-sequestration of carbon dioxide --- Geological carbon dioxide sequestration --- Geological sequestration of carbon dioxide --- Geological storage of carbon dioxide --- Carbon sequestration --- Geological sequestration --- Geological storage
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