Two-pyroxene-plagioclase granulite

Title

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

Western Minerals Inc.

Spatial Coverage

Adirondack Highlands-collected on NY Route 30 from the west side of a road cut just north of Pumpkin Hollow.

Temporal Coverage

Precambrian

Accrual Method

Purchased from Western Minerals Inc.

Unit

Sacandaga Formation

Number of Thin Sections

1

Geolocation