About

Doris Sloan's articles on the geology of the Bay Area have been appearing in Bay Nature since our first issue. Her book Geology of the San Francisco Bay Region was published by UC Press in 2006.

Contributions

Stories in Stone

July 01, 2010 by Doris Sloan

You'll find some of Central California's most remarkable rocks at this state park on the Sonoma coast. Here, waves, fault lines, and changes in sea level have left sublime stories written into the landscape.

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The Fremont Peak Experience

April 01, 2008 by Doris Sloan

Discover rare rocks, distant stars, beautiful wildflowers, and a bit of California history all at one small state park south of San Juan Bautista.

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On The Move

April 01, 2006 by Doris Sloan

All of the familiar landforms we see here in the Bay Area—ridges, cliffs, lakes, and even San Francisco Bay itself—are products of the same titanic encounters between tectonic plates that produce our frequent quakes. Through a geologist's trained eye, we learn to interpret the signs these forces have left on the land around us.

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Down to the Sea Again

January 01, 2005 by Doris Sloan

Daly City's cliffs hold tales of ancient seas and volcanic eruptions. But don't count on them to stand still under your feet, or your home.

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What, and where, are the oldest rocks in the Bay Area?

October 01, 2002 by Doris Sloan

A: The oldest rocks in the Bay Area are metamorphic rocks associated with the granitic rocks at Point Reyes, Bodega ...

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Goat Rock State Beach

July 01, 2001 by Doris Sloan

The Pacific Coast north of San Francisco is justly renowned for its scenic beauty. It is also geology writ large, ...

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