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Více informací o knize The Resources and Attractions of the Territory of Utah (Classic Reprint)

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Anotace knihy

Excerpt from The Resources and Attractions of the Territory of Utah There is a general parallelism of the mountain chains, and all the structural features of local geology, the ranges, strike of great areas of upturned strata, larger outbursts of gigantic rocks, etc., are nearly parallel with the meridian. So the precious metals arrange themselves in parallel longitudinal zones. There is a zone of quicksilver, tin, and chromic iron on the coast ranges; one of copper along the foot-hills of the Sierras; one of gold further up the Sierras, the gold veins and resultant placers extending far into Alaska; one of silver, with comparatively little base metal, along the east base of the Sierras, stretching into Mexico; silver mines with complicated associations through Middle Mexico, Arizona, Middle Nevada, and Central Idaho; argentiferous galena through New Mexico, Utah and Western Montana; and, still further east, a continuous chain ofgold deposits in New Mexico, Colorado, Wyoming and Montana.. The Jurassic disturbances in all probability is the dating point of a large class of lodes: a, those wholly enclosed in the granites, and 0, those in metamorphic beds of the series extending from the Azoic to the Jurassic. To this period may be referred the gold veins of California, those of the Humboldt mines, and those of White Pine, all of class I); and the Reese River veins, partly a, and partly b. The Colorado lodes are somewhat unique, and in general belong to the ancient type. To the Tertiary period may be definitely assigned the mineral veins traversing the early volcanic rock; as the Comstock Lode and veins of the Owyhee District, Idaho. By far the greater number of metaliferous lodes occur in the stratified metamorphic rocks or the ancient eruptive rocks of the Jurassic upheaval; yet very important, and, perhaps, more wonderfully productive, have been those silver lodes which lie wholly in the recent volcanic formations. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Parametry knihy

Zařazení knihy Knihy v angličtině Earth sciences, geography, environment, planning Geography

• Plný název: The Resources and Attractions of the Territory of Utah (Classic Reprint)
• Autor: Utah Board of Trade
• Jazyk: Angličtina
• Vazba: Brožovaná
• Počet stran: 98
• EAN: 9781333509545
• ISBN: 1333509545
• ID: 14257695
• Nakladatelství: Forgotten Books
• Hmotnost: 144 g
• Rozměry: 229 × 152 × 5 mm
• Datum vydání: 08. September 2016

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