Abstract

A petrofabric study was performed on specimens of the Bromide Sandstone, Simpson Group, Oklahoma to determine a possible crystallographic influence on the geometry of intergranular pressure-solution scars. A universal stage was used to measure the orientations of the optic axes and contact planes of 166 pairs of quartz grains exhibiting long, concave-convex, and sutured contacts. Results indicate that the geometry of a pressolved contact is independent of the crystallographic orientations of opposing grains. However, given a concave-convex contact, the optic axis of the concave grain tends to lie at a lower angle to the pole of the contact plane than does that of the convex grain.

First Page Preview

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