Radiometric ages of the Gorgona Island (Colombia) komatiitic ophiolite

Espinosa, Armando; Delaloye, Michel; Wagner, Jean-Jacques

Scientific article

English

Radiometric ages of the Gorgona Island (Colombia) komatiitic ophiolite

ContributorsEspinosa, Armando; Delaloye, Michel; Wagner, Jean-Jacques

Published inOfioliti, no. 2/3, p. 237-238

Publication date1982

Abstract

A preliminary attempt to date the Gorgona Island komatiitic ophiolite with K-Ar has been made. Three gabbros give ages ranging from 86.2 ± 8.5 to 66.7 ± 8.0 m.y. which places the ophiolite in the Senonian (Upper Cretaceous).

Keywords

Komatiitic ophiolite
K-Ar dating
Senonian
Gorgona Island

Affiliation entities

Faculté des sciences / Section des sciences de la Terre et de l'Environnement / Département de minéralogie

Citation (ISO format)

ESPINOSA, Armando, DELALOYE, Michel, WAGNER, Jean-Jacques. Radiometric ages of the Gorgona Island (Colombia) komatiitic ophiolite. In: Ofioliti, 1982, n° 2/3, p. 237–238.

Article (Published version)

Identifiers

PID : unige:143463

Journal ISSN0391-2612

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Radiometric ages of the Gorgona Island (Colombia) komatiitic ophiolite

A preliminary attempt to date the Gorgona Island komatiitic ophiolite with K-Ar has been made. Three gabbros give ages ranging from 86.2 ± 8.5 to 66.7 ± 8.0 m.y. which places the ophiolite in the Senonian (Upper Cretaceous).

Technical informations