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California Subduction Rocks

By , About.com Guide

Take this photographic field trip to classic subduction-related rocks across northern California. See image 1 for an introduction. California is considered a key locality for seeing and understanding rocks that come from all parts of subduction zones. Here are quick links to all the stops:

Day 1, Coast Range: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9

Day 2, Sierra Nevada: 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18

Day 3, Sierra Nevada: 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28

Day 4, Coast Range: 29 | 30 | 31 | 32 | 33

Images 13-24 of 116
An intimate glimpseStop 2, Ring Mountain Preserve: High-Grade SerpentiniteView from the eastStop 3, Green Valley Fault: The SettingFault gougeStop 3, Green Valley Fault: Fault BrecciaA subdued scarpStop 3, Green Valley Fault: Fault Scarp
View to the Vaca RangeStop 3, Green Valley Fault: Wooden Valley and Blue RidgeA grassy roadcutStop 4, Sedimentary Serpentinite: The SettingSharp crystalsStop 4, Sedimentary Serpentinite: CloseupA former mud volcanoStop 4-5, Serpentinite Slide
A side-trip fault valleyStop 4-5, Lake Berryessa Region: Wragg CanyonGreat Valley SequenceStop 4-5, Lake Berryessa Region: TurbiditesA recent additionStop 4-5, Lake BerryessaHuge sandstone buttressesStop 5, Monticello Dam: The Setting

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