Mathematics – Logic
Scientific paper
Jan 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983gecoa..47...81p&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 47, Jan. 1983, p. 81-91.
Mathematics
Logic
31
Chemical Evolution, Geochronology, Hafnium Isotopes, Lutetium Isotopes, Planetary Evolution, Earth Mantle, Neodymium Isotopes, Petrology, Strontium Isotopes, Planets, Isotopes, Chronology, Chemistry, Evolution, Lutetium, Lavas, Hafnium, Techniques, Fractionation, Isotopic Ratios, Geochemistry, Neodymium, Strontium, Basalts, Mantle, Distribution, Silicates, Moon, Minerals, Liquids, Zircons, Carriers, Radiogenic Elements, Chondrites, Dating Techniques, Procedure, Data, Samples, Terrestrial, Meteorites, Petrog
Scientific paper
The Lu-176-Hf-176 isotope method and its applications in earth sciences are discussed with regard to planetary-evolution studies. From new data on basalts from oceanic islands, Hf-176/Hf-177 and Nd-143/Nd-144 are found to display a single linear isotopic variation in the suboceanic mantle, whereas considerable divergences occur in Hf-176/Hf-177-Sr-87/Sr-86 and Nd-143/Nd-144-Sr87/Sr-86 diagrams. With the acquisition of further Hf-Sr-Nd isotopic data, these discordant Sr-87/Sr-86 relationships may allow a distinction between processes such as mantle metasomatism, influence of sea-water altered material in the magma source, or recycling of sediments into the mantle. The best quality Hf isotope data are obtained from granitoid or zircons, and are most suitable for studying ancient terrestrial Hf isotopic variations. Lu-Hf is shown to be a viable method for dating ancient terrestrial and extraterrestrial samples, but is unlikely to find wide application in pure chronological studies because it offers little advantage over existing methods.
No associations
LandOfFree
Importance of the Lu-Hf isotopic system in studies of planetary chronology and chemical evolution does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Importance of the Lu-Hf isotopic system in studies of planetary chronology and chemical evolution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Importance of the Lu-Hf isotopic system in studies of planetary chronology and chemical evolution will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1196887