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(Tephra studies as a tool in quaternary research - 1981)

Document title

Géochronology of Quaternary tephra deposits in Tephra studies.

Authors(s) and Affiliation(s)

NAESER C. W. ; BRIGGS N. D. ; OBRADOVICH J. D. ; IZETT G. A. ; SELF S. (Editeur scientifique) ; SPARKS R. S. J. (Editeur scientifique) ; NATO Advanced Study Institute ; 

Abstract

Three radiometric methods have been used to date Quaternary tephra: fission-track (F-T), K-Ar, and radiocarbon (C-14). The fission-track and K-Ar methods provide direct ages for the tephra because they date phenocrysts from the source magma that were deposited by the eruption cloud. Radiocarbon dating provides only indirect ages because the carbon used in this method comes from material, such as pre-existing wood, included in the tephra during deposition or collected from underlying or overlying strata.

Source

Congrès

Tephra studies as a tool in quaternary research ()

Editor : Unknown country of publication (1981)

Millesime : 1981 [pp. 13-47]

Bibliographic references : 102 réf.

Language

Anglais

Localisation

Bibliothèque du centre de géographie - Paris

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