File:The quicksilver resources of California (1903) (14783328892).jpg

The northeastern corner of San Benito County, California, northeast of Hollister

Identifier: quicksilverresou00forsrich (find matches)
Title: The quicksilver resources of California
Year: 1903 (1900s)
Authors: Forstner, William California State Mining Bureau
Subjects: Mercury mines and mining Mines and mineral resources Mercury ores
Publisher: Sacramento, Calif. : W.W. Shannon, supt. of State printing
Contributing Library: University of California Libraries
Digitizing Sponsor: Kahle/Austin Foundation and Omidyar Network

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Text Appearing Before Image:
ve and below theClear Creek mine, and in San Benito Creek, near the south-east corner of Sec. 22, T. i8 S., R. II E. In Clear Creek Canonthe schists underlie the serpentine, and are partly ver3^ muchdistorted, but their strike is about N. 45° E., dip nearly verti-cal southeast. In San Benito Cafion they are exposed on theeast side of the creek, the opposite side being formed of thinlybedded shales, probabh- belonging to the Chico, having a south-east strike and a southwest dip. The schists are not verywide, and are inclosed in sandstones. Another small croppingof schist is found a little higher up the creek at the New Yorkmine. In San Benito Canon, near the Don Juan mine, the non-conformity of the metamorphic series, with a strike nearly eastand west and a dip south, and the Chico on the other side ofthe creek, with a strike S. 45°-6o° E., dip southwest, is strik-ingly illustrated. Going up the canon above the old retort ofthe Don Juan mine the metamorphic shales can be seen under-
Text Appearing After Image:
I I Serpenlirg I I /ie/omorp/>. \ I Aoi^ Igneous t i Bos/c /gneous Geolojo l>y Wi. Korstiier, E.M. Geological Map of Stayton Mining District. Issued by the California State Mining Bureau—Lewis E. Aubury. State Mineralogist, 1903. SAN BENITO COUNTY. 129 lying the sandstones, which form nearly the entire surface ofDominic Peak, the mountain between the elbow of San Benitoand Picachos creeks, except at its highest point (4720 feet),1900 feet above the creek, which is covered by a conglomerate,traces of which can be found nowhere on the mountain side.Part of the sandstone is only slightly silicified, principally byquartz seams in the fractures; but on the southern part of thetop of this hill, jasper is found in sensible quantity, while thisformation is rare on the hillsides. The sandstones are non-conformable with the underlying shales. The chert beds arealmost entirely absent in this region. Only one very smallexposure in the lower part of Clear Creek has been observed,which cont

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