Proterozoic Geology and Ore Deposits of Arizona

Tucson, Arizona: Arizona Geological Society, 1991. First Edition. Softcover. Very Good. Unmarked. ; Book Description; Spine has no signs of creasing. Pages are clean and not marred by notes or folds. Covers are square with minor wear. Ships Safe and Fast. Proterozoic rocks in Arizona have been the focus of interest for geologists since the late 1800's. Early investigations, led by the U. S. Geological Survey, focused on the extensive ore deposits hosted by Proterozoic rocks. By the 1960's, these studies, combined with theses from academic institutions and the efforts of the Arizona Geological Survey, had produced a rich data base of geologic maps, primarily of the central part of the Transition Zone. The chronological significance of these maps became much better known with the application of U-Pb geochronology by L. Y. Silver and his students starting in the 1960's. The 1970's and early 1980's were marked by numerous contributions from Masters and Ph. D students at a variety of academic institutions, and continued work by the U. S. Geological Survey. Interest in ore deposits persisted and there was an increasing interest in interpretation of the tectonic history of Proterozoic rocks in terms of plate tectonic models, as summarized in papers by Phillip Anderson, Ed DeWitt, Clay Conway, Paul Lindberg, and J. L Anderson in the 1989 Arizona Geological Society Digest 17: "Geologic Evolution of Arizona". ; B&W Illustrations; tall 8vo 9" - 10" tall; 332 pages DH3.