Problems in the geochemistry of radiogenic isotopes

Details Problems in the geochemistry of radiogenic isotopes Problems in the geochemistry of radiogenic isotopes

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983geokh......333s&link_type=abstract

Geokhimiia (ISSN 0016-7525), March 1983, p. 333-347. In Russian.

Computer Science

Geochemistry, Isotope Effect, Meteoritic Composition, Nuclear Reactions, Radiogenic Materials, Solar System, Cosmic Rays, Cosmochemistry, Lunar Composition, Mineralogy, Nuclear Fusion, Planetary Composition, Planetary Evolution, Primitive Earth Atmosphere, Rare Gases, Solar Wind

Scientific paper

An analysis is presented of data on isotope anomalies associated with nuclear reactions in extraterrestrial matter and terrestrial minerals. In an examination of the broad pattern of isotope anomalies in space, it is noted that sources of such anomalies are nucleosynthesis during the formation of the protoplanetary system, nuclear reactions under the effect of cosmic rays, and the solar wind. 'Echoes' of cosmic nuclear reactions are evident in the isotopic composition of terrestrial elements in the 'extinct isotopes' inherited from the primordial matter, and in the decay products of these 'extinct isotopes'. Specific nuclear reactions occur on the earth, which produce isotopic shifts, either on a global scale or in extremely limited local objects.

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