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Déterminations d'âge isotopique faites sur quelques roches de l'Himalaya du Népal par la méthode potassium-argon

Publication date1961
Abstract

A summary of the knowledge about petrography and geology of E Nepal Himalaya and the results of 15 age determinations by the K/A method on samples from very different tectonic units of this area, are given in this paper. The results show that: I. The end of the Alpine (Himalaya) metamorphism in E Nepal takes place at the end of Miocen or beginning of Pliocen (about 13 M. a.). II. A Precambrian metamorphism is brought up by the K/A age of a detrital muscovite separated from a non metamorphosed quartzite. III. The K/A ages of catazonal rocks are younger than those of epizonal origin. An hypothesis is given to explain this particular point.

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Citation (ISO format)
KRUMMENACHER, Daniel. Déterminations d’âge isotopique faites sur quelques roches de l’Himalaya du Népal par la méthode potassium-argon. In: Schweizerische mineralogische und petrographische Mitteilungen, 1961, vol. 41, n° 2, p. 273–283. doi: 10.5169/seals-31901
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ISSN of the journal0036-7699
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