 ... surface and obscures the structure. The formation occurs in the low hills bordering the valley and passes beneath the alluvium of the valley floor. The Etchegoin formation is nowhere within Coalinga district known to contain any petroleum, but like...  Bulletin of the United States Geological Survey - Page 136by Geological Survey (U.S.) - 1910Full view - About this book
 | Geology - 1914 - 530 pages
...district known to contain any petroleum, but like the Jacalitos it has an important relation to the accessibility of the oil. Some wells in the Coalinga...Valley, or on Anticline Ridge, or in the Kettleman Hills have to pass through at least a part of this formation, and its thickness must be taken into account... | |
 | Ralph Arnold, Robert Anderson - Petroleum - 1908 - 156 pages
...Importance with relation to oil. — Nowhere within the Coalinga district is the Etchegoin formation known to contain any petroleum, but, like the Jacalitos,...of the oil sands. The great increase in thickness that takes place in this and the other post-Eocene formations south of Waltham Creek has an all-important... | |
 | Roy Parmelee McLaughlin, Clarence Almon Waring, California State Mining Bureau - Petroleum - 1914 - 530 pages
...district known to contain any petroleum, but like the Jacalitos it has an important relation to the accessibility of the oil. Some wells in the Coalinga...Valley, or on Anticline Ridge, or in the Kettleman Hills have to pass through at least a part of this formation, and its thickness must be taken into account... | |
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