Abstract

Quartz, in association with coesite and silica glass from two meteorite-impact sites, exhibits prominent cleavage. Individual quartz grains have a shattered appearance and are largely coherent with little or no rotation of cleaved segments. Cleavage was probably induced by brittle fracturing under shock loading and is similar to ruptures developed in quartz by static and shock-loading experiments. The degree of cleavage development and the texture of the shattered quartz is different from quartz deformed by other geologic processes.

First Page Preview

First page PDF preview
You do not currently have access to this article.