Quartzdiorite-granite contacts in the Cima d'Asta pluton (North Italy)

P. K. Hörmann; G. Morteani

doi:10.1007/BF00400130

Quartzdiorite-granite contacts in the Cima d'Asta pluton (North Italy)

P. K. Hörmann, G. Morteani

Christian-Albrechts-University of Kiel

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

It is shown in 4 geochemical profiles that in the Cima d'Asta pluton the quartzdioritic rocks continually change into granitic rocks. This continuous transition contradicts the opinion, that in this region three sharply defined intrusions of granitic, granodioritic, and quartzdioritic composition exist. The granodiorite is considered a transition zone, where the chemical composition of the quartzdiorite changes into a granitic composition. Near the contact the granodioritic zone is of less extension than in the further distant parts.

Original language	English
Pages (from-to)	361-367
Number of pages	7
Journal	Contributions to Mineralogy and Petrology
Volume	22
Issue number	4
DOIs	https://doi.org/10.1007/BF00400130
State	Published - Jun 1969
Externally published	Yes

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abstract = "It is shown in 4 geochemical profiles that in the Cima d'Asta pluton the quartzdioritic rocks continually change into granitic rocks. This continuous transition contradicts the opinion, that in this region three sharply defined intrusions of granitic, granodioritic, and quartzdioritic composition exist. The granodiorite is considered a transition zone, where the chemical composition of the quartzdiorite changes into a granitic composition. Near the contact the granodioritic zone is of less extension than in the further distant parts.",

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AB - It is shown in 4 geochemical profiles that in the Cima d'Asta pluton the quartzdioritic rocks continually change into granitic rocks. This continuous transition contradicts the opinion, that in this region three sharply defined intrusions of granitic, granodioritic, and quartzdioritic composition exist. The granodiorite is considered a transition zone, where the chemical composition of the quartzdiorite changes into a granitic composition. Near the contact the granodioritic zone is of less extension than in the further distant parts.

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Quartzdiorite-granite contacts in the Cima d'Asta pluton (North Italy)

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