Excerpt from The Mineral Composition and Geological Occurrence of Certain Igneous Rocks in the Yellowstone National Park The mass of Sepulchre Mountain with the body of intra sive rocks at its west base is separated from Electric Peak by a profound fault that trends north and south, and has thrown the higher surface accumulations of Sepulchre Mountain below the level of the Cretaceous strata with their deep-seated bodies of intruded rocks. The eruptive rocks at the western edge of the Sepulchre Mountain mass, and directly ...
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Excerpt from The Mineral Composition and Geological Occurrence of Certain Igneous Rocks in the Yellowstone National Park The mass of Sepulchre Mountain with the body of intra sive rocks at its west base is separated from Electric Peak by a profound fault that trends north and south, and has thrown the higher surface accumulations of Sepulchre Mountain below the level of the Cretaceous strata with their deep-seated bodies of intruded rocks. The eruptive rocks at the western edge of the Sepulchre Mountain mass, and directly east of the plane of faulting, carry large blocks of black Cretaceous shale, showing that they have broken up, through the same strata as those forming Electric Peak. The effect of the faulting on the eruptive rocks along the east side of the fault is plainly seen. The rocks are shattered and fractured into small pieces, held together by the pulverized portion. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... 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.
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