 Taff°> describes it as follows: "This shale, 250 feet in thickness, rests upon the Wewoka formation and its crop in this quadrangle is limited to a small triangular area in the northwestern corner. The surface of the formation becomes broader northward...  Bulletin - Seite 250von Oklahoma Geological Survey - 1911Vollansicht - Über dieses Buch
 | Oklahoma Geological Survey - 1911 - 320 Seiten
...the north. Taff°> describes it as follows: "This shale, 250 feet in thickness, rests upon the Wewoka formation and its crop in this quadrangle is limited...shelly limestone and shaly calcareous sandstone in the upper part. The sandstone ledges outcrop in terraces around the slopes of the hills bordering the... | |
 | Oklahoma Geological Survey - 1911 - 328 Seiten
...north. Taff (1) describes it as follows : "This shale, 250 feet in thickness, rests upon the Wewoka formation and its crop in this quadrangle is limited...shelly limestone and shaly calcareous sandstone in the upper part. The sandstone ledges outcrop in terraces around the slopes of the hills bordering the... | |
 | Oklahoma Geological Survey - 1911 - 322 Seiten
...the north. Taff(1) describes it as follows: "This shale, 250 feet in thickness, rests upon the Wewoka formation and its crop in this quadrangle is limited...shelly limestone and shaly calcareous sandstone in tlie upper part. The sandstone ledges outcrop in terraces around the slopes of the hills bordering... | |
 | 1956 - 586 Seiten
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 | 1961 - 328 Seiten
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