. Bulletin of the United States Geological Survey--The Santa Clara Valley, Puente Hills and Los Angeles Oil Districts. erence has been found byexploitation. The territory of the Menges Oil Company, which adjoins that of theBrea Canyon Company on the west, is structurally at variance withboth productive tracts described above and has so far yielded smallerwells. The general horizon at which oil is obtained by the Menges andthe Brea Canyon companies is the same, but between the two tracts]strongly developed at the sharp bend in the canyon, is a compoundflexure involving the oil-bearing strata, i


. Bulletin of the United States Geological Survey--The Santa Clara Valley, Puente Hills and Los Angeles Oil Districts. erence has been found byexploitation. The territory of the Menges Oil Company, which adjoins that of theBrea Canyon Company on the west, is structurally at variance withboth productive tracts described above and has so far yielded smallerwells. The general horizon at which oil is obtained by the Menges andthe Brea Canyon companies is the same, but between the two tracts]strongly developed at the sharp bend in the canyon, is a compoundflexure involving the oil-bearing strata, in part at least, of both proper-ties. The flexure is as local as it is sharp, and disappears within ashort distance of the stream. In the Menges tract, however, the strataare more disturbed than in that of the Brea Canyon Company, show-ing local and abrupt variations in both strike and dip, at one or twopoints with distinct overturns having a northerly dip. The foregoing discussion has been carried to considerable length atthis point because of the typical example afforded by the Brea Can- U. S. GEOLOGICAL SURVEY.


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