California mines and minerals . 166 pervious strata, must be con-sidered as conduits for thefluids, petroleum, oil andwater. When petroleum, oiland water flow in the samedirection, the porous andseamed strata are liable tobe barren of oil. Where theoil and water flow in oppositedirections, the porous orseamed strata are liable to befruitful with oil. Many years ago, beforethe denudation occurred,these strata were incased inan impervious cover; theright-hand dip of the anti-cline was towards the moun-tains; meteoric water, fallingon the mountains, enteredthe porous strata at A (), and fin


California mines and minerals . 166 pervious strata, must be con-sidered as conduits for thefluids, petroleum, oil andwater. When petroleum, oiland water flow in the samedirection, the porous andseamed strata are liable tobe barren of oil. Where theoil and water flow in oppositedirections, the porous orseamed strata are liable to befruitful with oil. Many years ago, beforethe denudation occurred,these strata were incased inan impervious cover; theright-hand dip of the anti-cline was towards the moun-tains; meteoric water, fallingon the mountains, enteredthe porous strata at A (), and finally flowed up theright-hand dip of the anti-cline, B, as shown by thearrows, being impelled for-ward by hydrostatic pressurein the higher levels of themountains, and the associ-ated oil which entered thesestrata by its inferior gravity,when compared with water,flowed in the same directionas the water; therefore, thisdip of the anticline is barrenof bitumen. In the left-handdip of the anticline, B, thewater flowed downward, im-


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Keywords: ., bo, bookcentury1800, bookdecade1890, bookidcaliforniaminesm00cali