Results 211 to 220 of about 51,804 (265)
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Geochronology of Metasomatic Events
2012In order to date any geological event, suitable mineral geochronometers that record that and only that event must be identified and analyzed. In the case of metasomatism, recrystallisation is a key process that controls both the petrology and the isotopic record of minerals. It can occur both in the form of complete neocrystallisation (e.g.
Villa, Igor Maria, Williams, Michael L
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1978
Abstract Fission track analysis of pyrogenic apatite from a bentonite in the Acton Scott beds of the type section of Murchisons Caradoc Series has produced minimum ages of 443 ± 27 m.y. (external detector method) and 459 ± 27 m.y. (population method).
Reuben J. Ross +2 more
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Abstract Fission track analysis of pyrogenic apatite from a bentonite in the Acton Scott beds of the type section of Murchisons Caradoc Series has produced minimum ages of 443 ± 27 m.y. (external detector method) and 459 ± 27 m.y. (population method).
Reuben J. Ross +2 more
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2020
Accurate knowledge of climate variations in the past is an essential preamble to any realistic modeling of future climate, and requires an understanding of the mechanisms that govern the natural dynamics of the climate, and especially of its rapid changes.
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Accurate knowledge of climate variations in the past is an essential preamble to any realistic modeling of future climate, and requires an understanding of the mechanisms that govern the natural dynamics of the climate, and especially of its rapid changes.
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Geochronology as based on Solar Radiation
Science, 1927In the article by Dr. G. De Geer on the "Geochronology as based on Solar Radiation" (SCIENCE, 1927, LXVI, p. 458), in line 14 of the second column for "this" read "the," in line 22 of the fourth column omit the words "already made" and in line 37 of the fifth column for "non" read "now."
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Geochronology of the Paraná-Etendeka large igneous province
, 2021Allan Gomes, P. Vasconcelos
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Subcommission on geochronology: Convention on the use of decay constants in geo- and cosmochronology
, 1977R. Steiger, E. Jäger
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A revised Cenozoic geochronology and chronostratigraphy
, 1995W. Berggren +3 more
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TEMORA 1: a new zircon standard for Phanerozoic U–Pb geochronology
, 2003L. Black +6 more
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