Although the period of active life of San Francisco has been a short one, as historical periods go, it has been crowded with incident. Enough of the latter could be found to present a vivid picture of the career of the metropolis of the Pacific coast, but in this work something more has been attempted than a mere recital of occurrences. It has been the purpose of the author to trace the causes of the growth of the City, and to describe the manifold activities of its citizens. This is volume two out of two of one of the most thrilling and detailed histories of San Francisco.
The Miocene Columbia River flood basalt province covers ~210,000 km2 of the Pacific Northwest of the United States, and forms part of a larger volcanic region that also includes contemporaneous silicic centers in northern Nevada, the basaltic and time-transgressive rhyolitic volcanic fields of the Snake River Plain and Yellowstone plateau, and the High Lava Plains of central Oregon. The Columbia River flood basalt province is accessible and well exposed, making it one of the best-studied flood basalt provinces worldwide, and it serves as a model for understanding the stratigraphic development and petrogenesis of large igneous provinces through time. This volume details our current knowledge of the stratigraphy and physical volcanology; extent, volume, and age of the lava flows; the tectonic setting and history of the province; the petrogenesis of the lavas; and hydrogeology of the basalt aquifers.
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