California mines and minerals . At Stockton, in Sun Joa-quin County, natural gas isobtained in remunerativequantities, from wells per-meating strata of quater-nary age. At Marysville Buttes, inthe Sacramento Valley,natural gas is found in rocksof Eocene age, formerly calledcretaceous B. There areseveral places in Sacramentoand San Joaquin valleys wherewells are yielding sufficientnatural gas to be of localvalue. The relative position inpoint of vertical range of theformations, wherein remuner-ative oil wells have been ob-tained, in Ventura and LosAngeles counties, is dem-onstrated by an invest
California mines and minerals . At Stockton, in Sun Joa-quin County, natural gas isobtained in remunerativequantities, from wells per-meating strata of quater-nary age. At Marysville Buttes, inthe Sacramento Valley,natural gas is found in rocksof Eocene age, formerly calledcretaceous B. There areseveral places in Sacramentoand San Joaquin valleys wherewells are yielding sufficientnatural gas to be of localvalue. The relative position inpoint of vertical range of theformations, wherein remuner-ative oil wells have been ob-tained, in Ventura and LosAngeles counties, is dem-onstrated by an investigationof the country between thePiru and Sespi creeks, in Ven-tura County, where the fol-lowing sequence of forma-tions can be seen: At thePiru Creek, a conglomerateformation is seen containingNeocene fossils, Plioceneforms being the most numer-ous. In some places, the con-glomerate is impregnatedwith petroleum; it rests ona shale formation, contain-ing Neocene fossils. Thelower portion of the shale isinterstratifiedwith sands
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Keywords: ., bo, bookcentury1800, bookdecade1890, bookidcaliforniaminesm00cali
