More Geology in the field with Laurie Munger - Avila Beach (Port San Luis, actually) has the best exposure of 150 million year old pillow basalts in our area. The Geology class visited the pillow basalts - a part of the Franciscan Formation - to see first hand an example of rocks formed along a divergent boundary. We also visited Shell beach to view an exposure of a synclinal fold in the Monterey Shale Formation. Both destinations showed angular unconfomities (an erosion layer) above the older rock units with horizontally deposited more recent sediments.
Posted on: Thu, 20 Nov 2014 19:00:00 +0000
Trending Topics
© 2015