Abstract

The Borrego Springs shear-zone section of the Eastern Peninsular Ranges Mylonite Zone (EPRMZ) contains unequivocal evidence for ductile shearing with an east-over-west sense of movement. Field evidence includes the presence of S and C planes and shear bands. All lines of microstructural evidence are internally consistent and support the field observations. It appears that the data are compatible only with post–mid-Cretaceous west-directed thrusting on the EPRMZ.

This content is PDF only. Please click on the PDF icon to access.

First Page Preview

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