Contributions to Economic Geology (Short Papers and Preliminary Reports) 1913

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Excerpt from Contributions to Economic Geology (Short Papers and Preliminary Reports) 1913: Mineral FuelsThe areal distribution of the shale has been determined in a general way only. In Utah it extends northward from its line of outcrop, shown in Plate I, toward the interior of the Uinta Basin, but its limits in that direction can only be conjectured because its north ward extension is concealed beneath more recently deposited beds, which overlap it unconformably. It is probable, however, that bituminous shale underlies nearly all the deeper parts of the Uinta Basin in this State. In Colorado only the southern edge of the area was examined, but previous geologic work in adjacent areas to the east and north, where the base of the Green River formation has been mapped, indicates that the area containing shale is very similar in shape to that of the outcrop cf the Green River formation (see Pl. I, p. Though considerably smaller. It is believed that in Utah the greatest depth of the shale below the surface in the center of the basin exceeds feet but that in Colorado it is much less.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.