A photo of a sandstone outcrop.
By Geology and Ecology of National Parks
June 1990 (approx.)
Detailed Description
This is an outcrop of interbedded marine sandstone and conglomerate of the Point Reyes Conglomerate of Galloway (1977) of Eocene age being examined by a person (for scale). These sedimentary rocks rest unconformably on Upper Cretaceous granite and granodiorite exposed in the Point Reyes Headlands.
Sources/Usage
A photo of a sandstone outcrop.