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Geologic Map and Report for the Theodore Roosevelt Dam Area, Gila and Maricopa Counties, Arizona (Classic Reprint) - Softcover
Synopsis
Excerpt from Geologic Map and Report for the Theodore Roosevelt Dam Area, Gila and Maricopa Counties, Arizona
All three units are exposed near the southeast abutment of Theodore Roosevelt dam where a 30-m-deep channel has been incised into Troy Quartzite, Mescal Limestone, and basalt associated with the Mescal Limestone. The channel fill includes a lower ferruginous sandstone and an overlying, very poorly sorted feldspathic sandstone (see detail map, Figure We have assigned the lower unit to the Bolsa Quartzite. It is typically ferruginous in its lower part, but variably bleached in the upper part with locally striking Liesegang banding. Sand is moderately sorted, feldspar is not a prominent constituent, but in some places magnetite is common. Troughy cross beds are abundant.
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Geologic Map and Report for the Theodore Roosevelt Dam Area, Gila and Maricopa
Print on DemandSeller: Forgotten Books, London, United Kingdom
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Paperback. Condition: New. Print on Demand. This book delves into the intricate geological makeup of the Theodore Roosevelt Dam area, an expanse of land that has long captivated geologists. As part of a multi-year mapping program, the author takes us on a journey through the region's diverse suite of Proterozoic granitic rocks, gneiss, and metavolcanic rocks. These ancient formations are further intertwined with a captivating sequence of middle Proterozoic Apache Group strata, diabase sills, and Paleozoic strata as young as the Mississippian Redwall Limestone. The narrative is enriched with detailed modal mineral analyses of granitic rocks, a crucial aspect for classifying these geological formations. This book offers a unique glimpse into the captivating geological history of the Theodore Roosevelt Dam area, making it an essential resource for geologists, students, and anyone fascinated by the wonders of our planet's geological past. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Seller Inventory # 9781390943375_0
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