Preliminary Geologic Map of Sequoia and Kings Canyon National Parks, California PDF Download
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Author: James Gregory Moore Publisher: ISBN: Category : Geology Languages : en Pages : 22
Book Description
"This report describes and provides background for the accompanying preliminary geologic map of Sequoia and Kings Canyon National Parks compiled on the special topographic map of the parks at a scale of 1:125,000. This geologic map of the parks is one-half the scale of the 12 published geological quadrangle maps (scale 1:62,500) that cover more khan half of the parks area. Therefore it was necessary to simplify cartographic detail and to portray a minimum number of lithologic units. .... This open file map, and the explanatory text, is intended as a general assessment of the regional geology of the parks area, as a resource for planning further geologic research in the parks, and as a guide for the park interpretive staff in the geologic framework and geologic history of the parks. It is also an initial step in the preparation of a final map to accompany a popularized report on the geology of the parks."--Page 2.
Author: James Gregory Moore Publisher: ISBN: Category : Geology Languages : en Pages : 22
Book Description
"This report describes and provides background for the accompanying preliminary geologic map of Sequoia and Kings Canyon National Parks compiled on the special topographic map of the parks at a scale of 1:125,000. This geologic map of the parks is one-half the scale of the 12 published geological quadrangle maps (scale 1:62,500) that cover more khan half of the parks area. Therefore it was necessary to simplify cartographic detail and to portray a minimum number of lithologic units. .... This open file map, and the explanatory text, is intended as a general assessment of the regional geology of the parks area, as a resource for planning further geologic research in the parks, and as a guide for the park interpretive staff in the geologic framework and geologic history of the parks. It is also an initial step in the preparation of a final map to accompany a popularized report on the geology of the parks."--Page 2.
Author: Robert S. Hildebrand Publisher: Geological Society of America ISBN: 0813725321 Category : Nature Languages : en Pages : 123
Book Description
In this Special Paper, Hildebrand and Whalen present a big-picture, paradigm-busting synthesis that examines the tectonic setting, temporal relations, and geochemistry of many plutons within Cretaceous batholithic terranes of the North American Cordillera. In addition to their compelling tectonic synthesis, they argue that most of the batholiths are not products of arc magmatism as commonly believed, but instead were formed by slab failure during and after collision. They show that slab window and Precambrian TTG suites share many geochemical similarities with Cretaceous slab failure rocks. Geochemical and isotopic data indicate that the slab failure magmas were derived dominantly from the mantle and thus have been one of the largest contributors to growth of continental crust. The authors also note that slab failure plutons emplaced into the epizone are commonly associated with Cu-Au porphyries, as well as Li-Cs-Ta pegmatites.
Author: James Gregory Moore
Author: James Gregory Moore
Author: 
Author: James Gregory Moore
Author: Gregory S. Gohn
Author: 
Author: Geological Survey (U.S.)
Author: Paul C. Bateman
Author: J. R. Riehle
Author: Robert S. Hildebrand
Author: Allen F. Glazner