Report of the State Mineralogist, Količina 11State Office, 1893 |
Iz vsebine knjige
Zadetki 1–5 od 85
Stran 21
... gold recovery is from the auriferous quartz veins . Vein mining is conducted in a large majority of counties in the State , in some of them it being the principal revenue . As near as can be authentically ascertained there are about ...
... gold recovery is from the auriferous quartz veins . Vein mining is conducted in a large majority of counties in the State , in some of them it being the principal revenue . As near as can be authentically ascertained there are about ...
Stran 32
... gold , silver , antimony , and copper . Zinc - blende and galena are often present , and also iron and copper sul- phurets . On the surface the mineralized areas are represented by a red spongy mass , in which the gold is free or partly ...
... gold , silver , antimony , and copper . Zinc - blende and galena are often present , and also iron and copper sul- phurets . On the surface the mineralized areas are represented by a red spongy mass , in which the gold is free or partly ...
Stran 43
... gold , but now the chief interest in this section centers in the numerous gold- bearing quartz ledges . The Churntown district lies on the east , and the Old Diggings on the west . Both are very similar in regard to geolog- ical ...
... gold , but now the chief interest in this section centers in the numerous gold- bearing quartz ledges . The Churntown district lies on the east , and the Old Diggings on the west . Both are very similar in regard to geolog- ical ...
Stran 47
... gold instead of silver . The deposits belong in the category of fissure veins , while the mineralization of the silver belt , the northern continuation of which is seen on Squaw Creek , about a mile below the mines , is not that of a ...
... gold instead of silver . The deposits belong in the category of fissure veins , while the mineralization of the silver belt , the northern continuation of which is seen on Squaw Creek , about a mile below the mines , is not that of a ...
Stran 49
... gold- bearing quartz veins . The greater portion of the gold is found in iron sulphurets . Very little development was shown here at the time of my visit ; however , the veins do not appear to have a great deal of regularity , often ...
... gold- bearing quartz veins . The greater portion of the gold is found in iron sulphurets . Very little development was shown here at the time of my visit ; however , the veins do not appear to have a great deal of regularity , often ...
Druge izdaje - Prikaži vse
Pogosti izrazi in povedi
20 feet angle argillites average bedrock beds belt Blue clay bored bowlders cañon cement cent channel chloritic coal coarse contains copper cost country rock County Creek Cretaceous crushed deposits depth diabase dikes diorite distance district drift east extends feet deep feet in length feet long feldspar felsite fissure flowing foot wall Fork formation fossils free gold grade granite Grass Valley gravel ground Gulch hanging wall hills hoisting hornblende hydraulic inches iron land lava ledge limestone lode metamorphic metamorphic rocks mill mineral mountains Nevada City northeast northwest obtained outcrop patent Pelton wheel places porphyry portion present pump quartz ranch ridge river road rock sand sandstone schists seams serpentine shaft shale shoot shows side silver situated slate slope southeast southwest springs stoped strata stratum stream strike sulphurets sunk supply surface syenite thickness timber tufa tunnel Valley vein width
Priljubljeni odlomki
Stran 539 - All records of mining claims hereafter made shall contain the name or names of the locators, the date of the location, and such a description of the claim or claims located by reference to some natural object or permanent monument as will identify the claim. On each claim located after the tenth day of May, eighteen hundred and seventy-two, and until a patent has been issued therefor, not less than one hundred dollars' worth of labor shall be performed or improvements made during each year.
Stran 524 - An act granting the right of way to ditch and canal owners over the public lands, and for other purposes...
Stran 557 - To avail themselves of the benefits of this provision of law, the proprietors of a mining tunnel will be required, at the time they enter cover as aforesaid, to give proper notice of their tunnel location by erecting a substantial post, board, or monument at the face or point of commencement thereof, upon which should be posted a good and sufficient notice, giving the names of the parties or company claiming the tunnel right ; the actual or proposed course or direction of the tunnel ; the height...
Stran 528 - All valuable mineral deposits in lands belonging to the United States, both surveyed and unsurveyed, are hereby declared to be free and open to exploration and purchase, and the lands in which they are found to occupation and purchase, by citizens of the United States...
Stran 558 - Recorder of the district, to which notice must be attached the sworn statement or declaration of the owners, claimants, or projectors of such tunnel, setting forth the facts in the case; stating the amount expended by themselves and their predecessors in interest in prosecuting work thereon; the extent of the work performed, and that it is bona fide their intention to prosecute work on the tunnel so located and described with reasonable diligence for the development of a vein or lode, or for the...
Stran 558 - States governing their possessory title, shall have the exclusive right of possession and enjoyment of all the surface included within the lines of their locations, and of all veins, lodes and ledges throughout their entire depth...
Stran 569 - The person entitled to the use may change the place of diversion, if others are not injured by such change, and may extend the ditch, flume, pipe or aqueduct by which the diversion is made to places beyond that where the first use was made.
Stran 528 - That as a further condition of sale, in the absence of necessary legislation by Congress, the local Legislature of any State or Territory may provide rules for working mines involving easements, drainage, and other necessary means to their complete development ; and those conditions shall be fully expressed in the patent.
Stran 550 - In that respect they exercise a judicial function and, therefore, it has been held in various instances by this court that their judgment as to matters of fact, properly determinable by them, is conclusive when brought to notice in a collateral proceeding. Their judgment in such cases is, like that of other special tribunals upon matters within their exclusive jurisdiction, unassailable except by a direct proceeding for its correction or annulment.
Stran 531 - We are of opinion, therefore, that the term as used in the acts of Congress is applicable to any zone or belt of mineralized rock lying within boundaries clearly separating it from the neighboring rock.