Bulletin . he dip at the Aliso welLs. These exposures may be traced for a longdistance east and west of section 22, and seem to characterize the entireridge. A number of small seepages are found along the line of junc-tion between these upturned strata and the lower fault material. On the northern side of the mountain the exposures are much fewer,but at various places along the roads and in tunnels which have beendriven into the northern face, the dip is uniformly south and a little east,and at an angle ranging from 20 degrees to 25 degrees to tlie horizon. Alittle farther to the north is agai
Bulletin . he dip at the Aliso welLs. These exposures may be traced for a longdistance east and west of section 22, and seem to characterize the entireridge. A number of small seepages are found along the line of junc-tion between these upturned strata and the lower fault material. On the northern side of the mountain the exposures are much fewer,but at various places along the roads and in tunnels which have beendriven into the northern face, the dip is uniformly south and a little east,and at an angle ranging from 20 degrees to 25 degrees to tlie horizon. Alittle farther to the north is again a belt of much disturbed territory, 36 PETROLEUM IN SOUTHERN CALIFORNIA. \ the rocks being vertical in many places, and north of this line of dis-turbance the character of the rocks changes, and brown shales foundin the body of the mountain giving place to whitish chalky shales. These facts appear to determine that the main body of SulphurMountain is a fault block, that is, an isolated strip of formation,. I aui It. TunriAii-ocTdtim av Figure 13. Showing locations of Sulphur Mountain Wells. raised above the level of the surrounding rocks, and separated fromthem by strips of broken material. Whatever oil-producing formationsmay be found on Sulphur Mountain Avill, therefore, in all probabilitybe found to be entirely separated from the producing strata north andsouth, except as small quantities of oil may seep across the fault zones. 1 IlRIE, SULPHUR MOUNTAIX AND OJAI They further determine that the body of the mountain is composedof two sets of strata dipping toward each other, and meeting along theline indicated on Figure 13 as strike of syncline, either in a faultline, or in a curve or true syncline. PROF)LE ON LINE AB C D
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