Why does a bit of ocean floor lie on top of Mt. Diablo? Why is Red Rock, that small, knobby island in San Francisco Bay, red? Why is Loma Prieta high? This book is for San Francisco Bay Area residents and visitors who want to explore the geologic world of this spectacular area, to learn about its shapes, colors, and rocky foundations. Doris Sloan illuminates the colorful geologic mosaic that surrounds San Francisco Bay and lucidly explains the complex and fascinating processes that have forged it over millions of years. In a lively and engaging style, Sloan describes forces such as the movement of tectonic plates, erosion, the waves on the coast, and human activity. She provides background information on the processes, time frame, and rocks that are the key to understanding the Bay Area landscape and geologic history, then turns to distinct regions of the Bay Area and to San Francisco Bay itself. * Superbly illustrated with 139 color photographs, 41 drawings, and 29 maps * Covers Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Solano, and Sonoma counties * Gives clear, nontechnical explanations of complex topics including plate tectonics and the Bay Area's fault systems * Suggests locales in parks and open space preserves to view Bay Area geology in action
About the Author
Doris Sloan is Adjunct Professor in the Department of Earth and Planetary Science at the University of California, Berkeley.
Table of Contents
SECTION I OVERVIEW AND SOME BASIC GEOLOGY TO SET THE STAGEINTRODUCTION CHAPTER 1 THE SETTING AND THE PROCESSES THAT SHAPE IT Time: Human and GeologicGeological Processes: Shaping the LandscapeAt the Surface: Weathering and ErosionWhere Sea Meets LandThe Sand On (and Off) the BeachCHAPTER 2 THE PLATE TECTONIC FRAMEWORK The Dance of the PlatesCalifornia’s Dynamic PastThe Bay Area’s Network of FaultsSqueezing the Bay AreaThe Bay Area’s Complex StructureCHAPTER 3 THE REMARKABLE ROCKS OF THE BAY AREA The Foundation under our Feet: The ‘Basement’ Rocks The World-Famous Franciscan ComplexAssembling the FranciscanGreat Valley ComplexSalinian Complex: Visitor from Down SouthThe Younger Rocks: Emerging from the SeaTertiary Volcanoic RocksAt the Top of the HeapSECTION II BAY AREA GEOLOGYCHAPTER 4 MARIN COUNTY - A DIVIDED LANDSCAPEThe San Andreas FaultWest of the San Andreas FaultSierran Rocks in the Bay Area?East of the San Andreas Fault The Franciscan ComplexThe Great Valley ComplexThe Younger RocksSome Special Places to Visit The Marin Headlands Ring Mountain: the Bay Area’s Unusual Metamorphic Rocks Mt. Tamalpais: Cross-Section through Subduction CHAPTER 5 SAN FRANCISCO - GEOLOGY BENEATH THE PAVEMENT The Streams and Lakes that Once WereThe City on the DunesIce-Age SandModern Sand along the ShoreUnder the City: The Rocky Foundation Alcatraz Terrane Marin Headlands Terrane San Bruno Mountain Terrane Melange ZonesOn Top of the Basement RocksCHAPTER 6 THE BAY AND THE ISLANDS The Estuary and its SurprisesWater that Flows ‘Upstream’Secrets of the SedimentsEarly History of the BayMarshes and Plains Around the BayIslands in the Bay: the Drowned LandscapeCHAPTER 7 THE PENINSULA: COAST, REDWOODS, AND BAY The Coastal Landscape The Land UpliftedDown to the SeaFaults That Carve Up the PeninsulaThe Basement RocksA Record of Past SeasThe Youngest Rocks of the PeninsulaCHAPTER 8 THE SOUTH BAY The Valley That Was: The Santa Clara ValleySouth Bay Faults and StructureThe South Bay’s Diverse RocksThe Basement RocksThe South Bay Tertiary Rocks: From Sea to LandVolcanic RocksSpecial Places to ExploreAlum Rock Park: The Bay Area’s Hot Spring Resort Almaden Quicksilver County ParkCHAPTER 9 THE EAST BAY A Young LandscapeThe Delta, a Subsided MarshCreeks that Go the Long Way RoundThe East Bay Fault SystemThe Hayward FaultRocks Old and YoungThe Mesozoic Subduction RecordFrom Sea to LandThe Livermore ValleySpecial Places to ExploreMount Diablo State ParkBlack Diamond Mines Regional PreserveThe East Bay HillsCHAPTER 10 THE NORTH BAY The Sonoma Coast: Lifted Up and Slumping DownFaults and Fault SlicesThe Hole in the HeadAssembling the North Bay The Basement RocksThe Salinian BlockAcross the FaultSidebar: Goat Rock State BeachAfter Subduction EndedThe North Bay’s Volcanic EruptionsRivers and BaySECTION III Credits Further Reading Glossary Index
Most Helpful Customer Reviews
Geology of the San Francisco Bay Region based on 0 ratings. 1 reviews.
A very satisfying introduction to the geology of the Bay Area. It includes a good introduction to basic geology, which I certainly needed. The book looks and feels like a field guide and I actually went on several trips that were suggested by the book. A plethora of pictures helps in the learning process.At times, it's a bit too heavy on the individual types of rocks at any given geographic location. I would have liked to have that balanced with a good description of why the particular areas look as they do. However, that being said, the book gives a strong general overview of the larger geologic processes that shaped the Bay Area.I know I'll never again look at a rock in the Bay Area the same way.