Two-pyroxene-plagioclase granulite

Identifier

AD-12

Description

The Sacandaga Formation consists of a well layered series of dark granulites (AD-12) and leucogneisses (AD-13). Orthopyroxene is generally present in greater quantity than clinopyroxene. It is not known whether these rocks are metasedimentary or metaigneous. They are strongly foliated.
Thin section shows plagioclase (one with perthitic texture), orthopyroxene and quartz.

Date

1980

Contributor

Temporal Coverage

Accrual Method

Purchased from Western Minerals Inc.

Number of Thin Sections

1

Geolocation