Image of the Week: April 10 - 16, 2005

Bedded Chert, Marin Headlands, CA

Bedded chert, Marin headlands, July 25, 2004

These sedimentary rocks formed near the equator as siliceous oozes as the tests of radiolarians accumulated on the seafloor. They were carried to their present position by movements of Earth's lithospheric plates. As plates collided these rocks were deformed (folded) and accreted to North America.

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Links

Go to Franciscan Cherts of Marin Co., CA
Go to Geology Beach Walk to Marin Headlands
Go to Point Reyes National Seashore (NPS)
Go to Marin Headlands Terrane - Presidio of San Francisco (USGS)
Go to
Go to Overview of Point Reyes Geology
Go to General Geology Field Trips
Go to
Go to LCC Earth Science WEB LINKS Page
Go to LCC Geology WEB LINKS Page
Go to LCC Volcanoes WEB LINKS Page

CLICK on the colored links above to go to those Web Pages.

LCC Image of the Week 07-08-05
David Cordero
dcordero@lcc.ctc.edu