Geology of Rand Hill and Vicinity, Clinton County: The Area Comprised in the Mooers Atlas Sheet (Google eBook)

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University of the state of New York, 1901 - Geology - 44 pages
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Page R-73 - The majority of the faults of the region are certainly normal (gravity) faults, and this is likely the case with all.
Page R-63 - Eand hill, one fourth of a mile east of the house of L. Sanger and on the east side of a knoll of gabbro, a 15 inch dike of the syenite-porphyry, bearing n 65 e, is cut by a dike of diabase of the same width bearing east and west. In this case the diabase is indisputably the younger.
Page R-44 - ... entirely subsidiary to the other effects. The eastern Adirondack region by no means felt the full force of either disturbance, and in the west the effect was much less than in the east. The major line of both disturbances swerves round, and approaches the region most nearly at its southeast corner. 'A fault is produced by a sliding movement of the rocks on opposite sides of a fissure, with the result that the same rock stratum is higher on one side than on the other, as illustrated in the accompanying...
Page R-47 - ... important influence upon the soils overlying them. During the epochs of time in which the above rocks were in the making this region was subjected to various uplifts and depressions, with accompanying erosion or deposition, resulting in a constant change of the physiography of the earth's surface. Thus in comparatively recent times, so recent that the deposits formed have suffered but little erosion, this region- was covered by the Labrador ice sheet. As this sheet moved in a southwesterly direction...
Page R-73 - ... Champlain is approached. The general rude parallelism of these faults cuts up the region into a series of land slices. These are cross-faulted sometimes repeatedly as in the case of the block on the east of the Tracy Brook fault, but usually much less frequently. The cross-faults have a general ea-st and west trend, but depart widely from that, and may or may not be normal to the main faults.
Page R-41 - Precambric history Old sediments. The oldest rocks which have with certainty been recognized in the Adirondack region consist of certain well banded gneisses and schists, with bands of varying thickness of coarsely crystalline limestone. They are believed to be old water-deposited rocks, ancient sheets of sand, mud and calcareous mud, deposited on the floor of some large body of shallow water, in all probability the sea. They are now so greatly changed from their original condition that the structures...

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