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The Arizona Bureau of Mines (and later the Arizona Bureau of Geology and Mineral Technology and the Arizona Geological Survey) maintained a significant collection of primary data on mining districts, deposits, and prospects across Arizona. Some of this data has previously been utilized to contribute to earlier efforts by the U.S. Geological Survey to develop the Computerized Resources Information Bank (CRIB) as a centralized repository of organizing and summarizing data on mineral resources in the 1970’s. However, the primary data sources have previously only been available in person at the Arizona Geological Survey offices. Following the transfer of the Arizona Geological Survey to the University of Arizona in...
Arizona’s long history of exploration and mining has resulted in the development of mineral resources across the state. By convention, individual prospects, deposits, and mines into mining districts as an organizational framework to refer to prospective areas for economic mineralization. However, there are no strict definitions of what constitute a mining district other than evidence of mineral potential. Thus, mining districts reflect areas with known mineralization, have diffuse boundaries, and may change over time as new discoveries are made. Mining districts provide a useful framework for both geologists and hobbyists for organizing information, with the past county reports on mineral resources organized from...
Phillip Anderson conducted a comprehensive study of the Proterozoic geology, tectonics, and mineral deposits of the Southwest, focused on Arizona. He started his studies upon arrival at the University of Arizona in the early 1970s, beginning a PhD in the Department of Geosciences. As part of this expansive project, Phil visited and studied nearly every exposure of Proterozoic rocks in Arizona. These studies ranged from detailed quadrangle-scale mapping of large areas to regional reconnaissance accompanied by air-photo interpretation. Phil also collected and geochemically analyzed samples of key rock units, focusing on Proterozoic volcanic and plutonic rocks and their metamorphosed equivalents. He also collected...
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