Excerpt from The Eastern Front of the Bitterroot Range Montana
The origin of the impressively straight part of the Bitterroot Range on the western border of the long valley in which Hamilton, Mont., is the principal settlement has been a matter of debate among geologists since Lindgren's reconnaissance in 1899. He was impressed by the straightness of the mountain front, and in his report (1904) he called attention to the smooth slopes, which he estimated to be inclined at angles of 15° He interpreted these smooth inclined slopes to mean that the rocks composing this part of the Bitterroot Range com prise a sheet of pressed and deformed granite that resulted from normal faulting of low dip, involving both stretching and shearing of the rocks.
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Anbieter: Forgotten Books, London, Vereinigtes Königreich
Paperback. Zustand: New. Print on Demand. This book approaches the long-standing debate over the geological origins of the front of the Bitterroot Range, grappling with a mystery that has attracted speculation since at least 1899. The author incorporates both field and laboratory data to support his conclusion that the banded gneiss rock of the Bitterroot Range front is not the result of faulting as previously hypothesized but rather a granitized sedimentary rock, likely part of the region's Ravalli Group. Although a similar conclusion was reached by another scientist in 1935, this book presents new evidence and delves into the regional geology to firmly establish the sedimentary origins of this rock. The author emphasizes that, due to the rock's prolonged history, many of its original sedimentary features have been obscured by igneous influence yet remain visible for the keen observer in the rock's banding and composition. 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. Bestandsnummer des Verkäufers 9781528526791_0
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Zustand: New. Bestandsnummer des Verkäufers 393304998
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Zustand: New. Bestandsnummer des Verkäufers 26386327673
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PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LX-9781528526791
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PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LX-9781528526791
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