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KBR12

Abstract

Described by Western Minerals Inc. as 'porphyroblastic metasediments/hybrid rocks, interpreted by Eales and his coworkers as metamorphosed 'Red Beds' Formation sediments but conceivably magmatic in origin. The specimens illustrate the range in textures and compositions.' If so, textures in this sample, though difficult to describe, better resemble those of igneous than sedimentary rocks. This sample is jumbled mess of bladed, graphically intergrown k-feldspar and clinopyroxene, subhedral plagioclase altering to a dendritic, cloudy mineral, patches of anhedral, granular quartz, and elongate, poikilitic opaques.

Note

The author has given permission for this work to be deposited in the Digital Archive of Colorado College.

see handout and map

Administrative Notes

The author has given permission for this work to be deposited in the Digital Archive of Colorado College.

Copyright
Copyright restrictions apply.
Publisher
None
PID
coccc:19508