Mines and Mineral Resources of the Counties of Colusa, Glenn, Lake, Marin, Napa, Solano, Sonoma, Yolo |
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ANDERSON basalt Bibl Borax bottled Brick California Calistoga canyon carbonated cent cinnabar clay Cloverdale Colusa County copper crushed crusher cubic yards deposit elevation Etna feet bar flasks formerly fuller's earth furnace GEOL Geysers gravel Guerneville Healdsburg Helena Hot Springs idle iron kilns Lake County limestone magnesite material Middletown miles east miles north miles northeast miles south miles west mill mineral springs mineral water Napa County northwest Northwestern Pacific Railroad Oat Hill Onyx Marble operated outcrop paving blocks Petaluma Photo plant Portland Cement principal production quarry quicksilver Quicksilver Mining railroad ranch reported road rock ROCKY MTS San Francisco sandstone Santa Rosa serpentine Solano County Sonoma County southeast STONE INDUSTRY Sulphur Bank Sulphur Creek Sulphur Springs SURV temperature tons trachytic tunnel U. S. G. S. Bull U. S. G. S. Water Sup utilized Vacaville Vallejo Valley veins VIII White Sulphur
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Page 59 - By a Portland cement is meant the product obtained from the heating or calcining up to incipient fusion of intimate mixtures, either natural or artificial, of argillaceous with calcareous substances, the calcined product to contain at least 1.7 times as much of lime, by weight, as of the materials which give the lime its...
Page 40 - ... dip to the south and east, at a rather flat angle (20° to 30°). At the south end of this beach is an unconformity between two series of shales. "From Bolinas Point to Duxbury Point the shale strata which are somewhat indurated, strike southeast and dip west at 45° to 50°. In the cliffs at Duxbury the asphaltum appears in thin seams, cutting across and nearly normal to the dip of the strata. There are small dabs of asphaltum sticking to the washed reef throughout this section from Duxbury...
Page 112 - ... drilled to 1,820 feet and got nothing more. The gas is piped to Suisun, Fairfield, and Cement. Flow 20.000 cubic feet per day. The brine which accompanies it is evaporated and the salt marketed. There are several other occurrences of natural gas in the same district. "In the St. Johns quicksilver mine, a thick, dark brown mineral oil. which burns readily when a candle is applied to it, is found in the jointages and fissures in and near the ore bodies.
Page 37 - Along the shore line cliffs, west of Bolinas from Duxbury Point north for a distance of over three miles, there are several small occurrences of asphaltum which appear to be residues from oil seepages. "At Abalone Beach there is said to be an oil seepage which is uncovered at extreme low tide. The shales here dip to the south and east, at a rather flat angle (20° to 30°). At the south end of this beach is an unconformity between two series of shales. "From Bolinas Point to Duxbury Point the shale...
Page 40 - At Bolinas the division between the soft yellow sandstone to the east (dip E. at 10° to 15°) and the shales to the west is marked by a vertical fault plane. "On the mesa back of Duxbury Point (apparently an old sea terrace) two wells were drilled for oil about 1902. It is said that in the second well, which was a few yards from the sea cliff, a small flow of oil was obtained and several drumsful pumped out; that a charge of dynamite was exploded in the well to open up the flow more, but that instead...
Page 61 - Normally, a 60-foot kiln working on a dry mixture will produce from 160 to 180 barrels of cement each day of twenty-four hours. In doing this, if good coal is used, its fuel consumption will commonly be from 120 to 140 pounds...
Page 34 - Knoxvillc shales and sandstones. The cinnabar is associated chiefly with silica, in part crystalline and in part amorphous. In the lava it appears as small seams, which commonly follow either the original cracks between the blocks or the concentric surfaces of the decomposed masses. In the lake deposits below the basalt the cinnabar is found as impregnations or irregular seams. In the workings from the Hermann shaft the ore occurs exactly as it does in most of the quicksilver mines of California,...
Page 33 - The gases escaping from the waters are carbon dioxide, hydrogen sulphide, sulphur dioxide, and marsh gas. The waters contain chiefly carbonates, borates, and chlorides of sodium, potassium and ammonium; but alkaline sulphides are also present.
Page 24 - ... of dressing these ores. There are four recognized quicksilver districts either wholly or in part located in Lake County: (1) Mayacmas, the largest, is in southwestern Lake and extends over into northeastern Sonoma, and northwestern Napa ; (2) Clear Lake district is around the eastern, southern and southwestern sides of Clear Lake; (3) Knoxville district is at the junction of Lake, Yolo, and Napa, being principally in the last named; (4) Sulphur Creek district is almost wholly in Colusa but includes...
Page 27 - Mine (American). The Helen mine, owned by Andrew Rocca, is in Sec. 1, T. 10 N., R. 8 W.. 6 miles west of Middletown. at an elevation of 2675 feet (barometric reading at bottom of furnace). It consists of two claims, the Helen and the Austin, which were patented in 1874 by Pushbecker, later sold to the American company and to the present owner in 1900. The property includes between 600 and 700 acres (partly timbered) besides the mineral claims