Report on the Geology of Northern and Southern California, Embracing the Mineral and Agricultural Resources of Those Sections: With Statistics of the Northern, Southern and Middle MinesJames Allen, State printer, 1856 - 66 pages |
Expressions et termes fréquents
adit adjoining Aggregate expenses Aggregate ore reduced Aggregate receipts AMADOR COUNTY amount Average value Balance in favor basaltic Battery Tenders Blacksmith bottom cañons character Coast Mountains commenced condition cords Wood Creek crop Dead deposits distance district dollars per foot dollars per tun driven east engine shaft erected extend fathoms fifty feet Fort Ross gold mining Grass Valley Herbertville hundred and fifty hundred feet Incidentals Klamath Lafayette Hill latter lode main shaft Midian miles mill mineral monthly expenses nearly NEVADA COUNTY number of mines opened operations Osborn Hill period Petaluma plain portion present primitive rocks pyritous quartz RECAPITULATION reduced per month ridges Rocky Bar Russian River Sacramento San Bernardino schist Scott River Shasta Shasta River Sierra situated sixty feet soil springs Statistics for 1855 Stokers stream sufficient sunk surface twenty feet vein volcanic water line whim shaft winze Wood per day yield
Fréquemment cités
Page 3 - State, authorizing1 a farther examination of the unexplored portions of the State, I have the honor to submit the following Report and accompanying diagrams. Yours, &c. JOHN B. TRASK. EXECUTIVE DEPARTMENT, SACRAMENTO, MARCH 8th, 1855.
Page 20 - ... portion of the mountain is composed of basaltic rock having the prismatic form ; but in a few instances, at different points, it assumes the pentagonal shape, so common to the columnar form of this rock. I have traced this basaltic overflow in an east and west direction, for the distance of nearly forty miles on its course, and it is probable that it will be found to extend to a much greater distance eastward than at present known. As...
Page 49 - ... success and profit from their property. Accordingly a new directorship was the first result of the above conclusion, and which saved the mine literally from total abandonment.
Page 28 - ... being distributed through the seams. The rock is thoroughly impregnated with thin,' glistening scales of greenish and whitish talc, the latter often covering the surfaces of fractures entirely, and the latter containing microscopic particles of gold in considerable quantities ; at times the surfaces are well filled with fine spangles of gold visible to the naked eye. This lode contains lead and molybdenum in small quantities, in the form of sulphurets, at times distinct but most commonly combined...
Page 55 - Aggregate ore reduced, 4,680 tuns. Average yield per tun $24 90. Aggregate monthly expenses $18,937 ". receipts 112,320 Balance in favor 50,000 RECAPITULATION.
Page 10 - South of the preceding, there are several other streams furnished from these mountains, which discharge their waters at. various points along the line of the coast. From the head of Stone Creek I reached the valley sections of the Sacramento, and arriving at Shasta, again went over a portion of the route of the preceding year, to the base of that part of the Coast Mountains known as the...
Page 24 - ... lode, talcose schist ; ores, pyriferous and gossan. McGHEE, Director. EXPERIMENTAL MINE, COLUMBIA, TUOLUMNE COUNTY. This mine is situated about one and a half miles north of the town of Columbia, in the County of Tuolumne. It was first located in 1852, and some little money and labor expended upon it sufficient to fairly test the character of the vein. From this time until the early part of 1854, little or no labor was bestowed in developing the mine. During that year a company was organized...
Page 23 - ... to say the least, a strong inducement to believe that a bed of bituminous coal underlies this entire section of the State.
Page 60 - The results arc what may bo expected in mill work, if properly conducted, and do not represent the absolute amount of gold contained in these minerals. Chemical analysis will show a much greater amount of metal, and would have been presented in connection with the above had it been completed in sufficient time...
Page 21 - The gravel and clay beds of this locality have been found to prove extremely rich in placer gold, but like all new discoveries of this kind, much that has been said is only conjectural.