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1“...10 aeotoor omhe hill eouH.'HiY which had their origin in the old sea. Sandstones were of oft shore...”
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2Published 2014“... and became layers of shale and sandstone, now the bedrock of our North Dakota landscape. This is known...”
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3“...ash) sandstones. About 5 million years ago, long after the lakes were filled, a new erosional cycle...”
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4“... the surface and in some parts is limestone, in other parts sandstone, and in still other parts is shale...”
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5“..., southwest of the Missouri River, are largely the result of erosion of flat-lying beds of sandstone...”
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6“... and became layers of shale and sandstone, now is the bedrock of our North Dakota landscape. This is known...”
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7“..." upon which all other rocks were deposited. Marine sandstones, shales, and limestones of the Paleozoic...”
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8“... and provide the "basement" upon which all other rocks were deposited. Marine sandstones, shales...”
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9“..., and the Dakota sandstone at the bottom, as the oldest of all. It is the Dakota sand«tone in which the water...”
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10“... when easily eroded sediments are protected by a hard layer of sandstone or limestone. Where beds...”
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11“... of them are of igneous varieties of rocks, but som» are of limestone. More rarely a sandstone bowlder may...”
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12“... and sandstone tend to be less fertile than those formed from glacier sediment. Regional Historical Geology...”
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13“... layers that contain water. An aquifer might be contained in a bed of permeable sandstone, or it might...”
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14“... and sandstone tend to be less fertile than those formed from glacier sediment. Regional Historical Geology...”
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15“.... And the first rock struck may be either shale, limestone, sandstone or Laurentian granite, according to locality...”
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16Published 2014“... Rock is a large sandstone promontory located west of the old river town of Expansion. It is also a...”
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17“... and associated rocks, with occasionally one of limestone. Some of sandstone occur here, but they are very rare...”
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18“... the coal-bearing sediments of the Fort Union Group are thousands of feet of sandstone, shale and limestone...”
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19“... marine sandstones, shales, and the limestones of the Paleozoic era. These Paleozoic rocks offer the best...”
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20Published 2014“... name to Omio in Jan. 1892 with Libbie Wescott the first postmaster. A sandstone Methodist church...”
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