Chapter of Report ... of the State Mineralogist Covering Mining in California and the Activities of the State Mining Bureau, Količina 22State Mining Bureau, 1926 |
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Zadetki 1–5 od 78
Stran 15
... crosscut tunnels at depths of 340 , 395 , 420 , 520 , 640 , 725 , and 1080 feet below the outcrop , besides several smaller old workings between the outcrop and the upper level . As two principal veins have been developed to a maximum ...
... crosscut tunnels at depths of 340 , 395 , 420 , 520 , 640 , 725 , and 1080 feet below the outcrop , besides several smaller old workings between the outcrop and the upper level . As two principal veins have been developed to a maximum ...
Stran 24
... crosscut and 20 feet on the vein at time of visit in August . The vein makes small lenses similar to those in the Fields - Meckel claims , and is probably an extension of the same vein . It carries finely divided free gold . Assessment ...
... crosscut and 20 feet on the vein at time of visit in August . The vein makes small lenses similar to those in the Fields - Meckel claims , and is probably an extension of the same vein . It carries finely divided free gold . Assessment ...
Stran 25
... crosscut 1373 feet to the vein , with a drift thence 890 feet northwest and 400 feet southeast . On the northwest a serpen- tine dike 50 feet wide cuts across the workings near the face and nothing has been found beyond it , although ...
... crosscut 1373 feet to the vein , with a drift thence 890 feet northwest and 400 feet southeast . On the northwest a serpen- tine dike 50 feet wide cuts across the workings near the face and nothing has been found beyond it , although ...
Stran 26
No. 3 level is a crosscut 513 feet to the vein , then drifted 175 feet southeast and 600 feet northwest , of which 250 feet of the latter was new work done by the present company up to November 1 , 1925 , after catching up and ...
No. 3 level is a crosscut 513 feet to the vein , then drifted 175 feet southeast and 600 feet northwest , of which 250 feet of the latter was new work done by the present company up to November 1 , 1925 , after catching up and ...
Stran 27
... crosscut 650 feet long . There are reported to be backs of 345 feet left unworked on the vein above the lowest level ... crosscuts were also run 120 feet northwest and 320 feet southeast in search of more ore . At this late date no ...
... crosscut 650 feet long . There are reported to be backs of 345 feet left unworked on the vein above the lowest level ... crosscuts were also run 120 feet northwest and 320 feet southeast in search of more ore . At this late date no ...
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Chapter of Report ... of the State Mineralogist Covering Mining ..., Količina 23 Celotni ogled - 1927 |
Chapter of Report ... of the State Mineralogist Covering Mining ..., Količina 24 Celotni ogled - 1928 |
Pogosti izrazi in povedi
acres adit Angeles average beds Bibl Bull Bulletin California Canyon carbonate Cement chalcopyrite Chocolate Mountains claims clay coal copper Creek crosscut deposits depth Development consists drift drilled driven Elevation feet deep feet in length feet long feet wide fissure Fork French Gulch galena Geological gold gravel Group gypsum Huntington Beach Idle Inyo Inyo County iron limestone located Long Beach magnesite manganese metal Midway miles east miles north miles northeast mill Mineral Production Mineralogist's Report XV Mining Bureau Mining Company Mountain northwest occurs operated orebody outcrop Owner oxide Petroleum Petroleum Corp Placer Placerville plant prospects pyrite quarry quartz River rock Sacramento San Francisco schist shaft Shasta County silver slate slope smelter Sonoma southeast Southern Pacific Railroad southwest Springs Standard Oil Standard Oil Co stoped strike tons Trinity Trinity River tunnel U. S. Geol Valley vein Weaverville width XVII
Priljubljeni odlomki
Stran 596 - •Fourteenth Report of the State Mineralogist, for the Biennial Period 19131914, Fletcher Hamilton, 1915: A General Report on the Mines and Mineral Resources of Amador, Calaveras, Tuolumne, Colusa, Glenn, Lake, Marin, Napa, Solano, Sonoma. Yolo, Del Norte, Humboldt, Mendocino, Fresno, Kern. Kings. Madera, Mariposa, Merced, San Jonquin, Stanislaus, San Diego. Imperial. Shasta, Siskiyou,
Stran 595 - the more elaborate ones have been sold at a price which barely ?overs the cost of printing. Owing to the fact that funds for the advancing of the work of this lepartment have often been limited, many of the reports and bulletins mentioned were printed in limited editions which are now entirely
Stran 596 - Mono, Butte, Lassen, Modoc, Sutter, Tehama, Placer, Sacramento, Yuba, Los Angeles, Orange. Riverside. San Benito. San Luis Obispo. Santa Barbara, Ventura, San Bernardino and Tulare Counties, 990 pp.. 413 illustrations, cloth Chapters of the State Mineralogist's Report, Biennial Period 1917-1918, Fletcher Hamilton : Mines and Mineral Resources of Nevada County, 270 pp., paper
Stran 597 - September, October, November, December, 1922 Free Chapters of Nineteenth Report of the State Mineralogist, 'Mining in California," Fletcher Hamilton and Lloyd L. Root. January, February, March, September, 1923 Free Chapters of Twentieth Report of the State Mineralogist, 'Mining in California,' Lloyd L. Root. Published quarterly. January, April, July, October,
Stran 595 - REPORTS. Asterisks (••} indicate the publication is out of print. First Annual Report of the State Mineralogist, 1SSO, 43 pp. Henry G. Hanks Second Annual Report of the State Mineralogist. 1882, 514 pp., 4 illustrations, 1 map. Henry G. Hanks Third Annual Report of the State Mineralogist, 18S3.
Stran 362 - counties. It must be remembered that several of our important oil fields are removed many miles from the site of any other industry, and! that the gathering of small amounts of gas and transporting it for any! considerable distance may not always be profitable, nor is it often! possible to have pipe-line facilities available to handle
Stran 595 - 234 pp., 15 illustrations, 1 geological map. Henry G. Hanks Sixth Annual Report of the State Mineralogist, Part I, 1886, 145 pp., 3 illustrations. 1 map. Henry G. Hanks Part II, 1SS7. 222 pp.. 36 illustrations. William Irelnn. Jr Seventh Annual Report of the State Mineralogist,
Stran 602 - geological map that has been available since 1892, and shows geology of entire state as no other map does. Geological details lithographed in 23 colors. Mounted 2.50 Topographic Map of Sierra Nevada Gold Belt, showing distribution of auriferous gravels, accompanying Bulletin No. 92
Stran 595 - Ill pp., 21 illustrations. Henry G. Hanks Fourth Annual Report of the State Mineralogist. 1884, 410 pp., 7 illustrations. Henry G. Hanks Fifth Annual Report of the State Mineralogist, 1SS5, 234 pp., 15 illustrations, 1 geological map. Henry G. Hanks Sixth Annual Report of the State Mineralogist, Part I, 1886, 145 pp., 3 illustrations. 1 map. Henry G. Hanks Part II,
Stran 362 - totals shown in the tabulation following herein, the average value for all fields in 1925 works out at approximately 8.2^. Approximately 7000 cubic feet of gas is equal to one barrel of oil in heating value, and is so accounted for by many operators. In