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Southern California Geology

Geologic Setting and History of the Los Angeles Basin

See these USGS publications:

McCulloh, T.H., Beyer, L.A. and Morin, R.W., 2002, Mountain Meadows Dacite: Oligocene Intrusive Complex That Welds Together the Los Angeles Basin, Northwestern Peninsular Ranges, and Central Transverse Ranges, California: U.S. Geological Survey Professional Paper 1649: available on-line at:

McCulloh, T.H., Fleck, R.J., Denison, R.E., Beyer, L.A., and Stanley, R.G., 2003, Age and Tectonic Significance of Volcanic Rocks in the Northern Los Angeles Basin, California: U.S. Geological Survey Professional Paper 1669: available on-line at:

McCulloh, T.H. and Beyer, L.A., 2004, Mid-Tertiary Isopach and Lithofacies Maps for the Los Angeles Region, California: Templates for Palinspastic Reconstruction to 17.4 Ma Geological Survey Professional Paper 1690: available on-line at:


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This site last updated September 3, 2004 (ps)

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