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A Contribution to the Geology of the Pre-Cambrian Igneous Rocks of the Fox River Valley, Wisconsin
Content Provider | Internet Archive |
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Author | Samuel Weidman |
Organization | Harvard University |
Language | English |
Publisher | the state |
Publisher Date | 1898-01-01 |
Access Restriction | Open |
Subject Keyword | feldspar quartz cleavage plagioclase phenocrysts fractures microperthite growths secondary parallel fox river longer axes extinction angle igneous rocks perthitic growths feldspar phenocrysts inner core public domain alteration products marked contrast |
Content Type | Text |
Resource Type | Book |