Role of replacement in the genesis of anorthosite in the Boehls Butte area, Idaho

In the Boehls Butte area, Idaho, three large and numerous small lenses of layered to massive anorthosite consisting of two, and locally three, types of plagioclase and minor hornblende and micas occur in aluminum silicate-rich garnet mica schist. In most of this anorthosite, andesine megacrysts with...

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Bibliographic Details
Main Author: A. Hietanen
Format: Article
Language:English
Published: Geological Society of Finland 1986-06-01
Series:Bulletin of the Geological Society of Finland
Subjects:
Online Access:http://www.geologinenseura.fi/bulletin/Volume58/sgs_bt_058_1_pages_071_079.pdf