Mineral Resources of Alaska: Report on Progress of Investigations in 1908 |
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Page 7
... lode mining of southeastern Alaska is treated , as heretofore , but the bulletin also includes accounts of the occurrence of copper in the Copper and White river regions and Prince William Sound , based on examinations made in 1908 ; a ...
... lode mining of southeastern Alaska is treated , as heretofore , but the bulletin also includes accounts of the occurrence of copper in the Copper and White river regions and Prince William Sound , based on examinations made in 1908 ; a ...
Page 17
... lode mine in the Territory furnished the statistical data requested . There are still many placer miners who have neglected to reply to the inquiries , which are of necessity sent by mail . It is expected , however , that as soon as ...
... lode mine in the Territory furnished the statistical data requested . There are still many placer miners who have neglected to reply to the inquiries , which are of necessity sent by mail . It is expected , however , that as soon as ...
Page 21
... lode mines of the Territory in 1908 was about 22 per cent greater than in 1907.a On the other hand , the fall in the price of copper from an average of 20 cents for 1907 to 13.2 cents in 1908 led both to a decrease in the output of that ...
... lode mines of the Territory in 1908 was about 22 per cent greater than in 1907.a On the other hand , the fall in the price of copper from an average of 20 cents for 1907 to 13.2 cents in 1908 led both to a decrease in the output of that ...
Page 24
... lode mines and prospects 区 Copper mines and prospects S Areas known to contain workable coals Anthracite , semianthracite , and semibituminous , including the better coking coals B Bituminous and subbituminous coals L Coal - bearing ...
... lode mines and prospects 区 Copper mines and prospects S Areas known to contain workable coals Anthracite , semianthracite , and semibituminous , including the better coking coals B Bituminous and subbituminous coals L Coal - bearing ...
Page 26
... lode production in 1908 as compared with 1907 , the placers yielded over four - fifths of the value of the precious - metal output . As complete statistical returns are not yet available , it is impossible to give exact figures in ...
... lode production in 1908 as compared with 1907 , the placers yielded over four - fifths of the value of the precious - metal output . As complete statistical returns are not yet available , it is impossible to give exact figures in ...
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Alaska amount August auriferous beach bed rock bench Bonanza Bulletin canyon carried Casadepaga cents chalcopyrite Chignik Bay claims coal field Cook Inlet cost country rock Creek at mouth creek gravels deposits depth discharge ditch drainage area drainage basin dredge east elevation Fairbanks district feet flows Fork Ganes Creek geologic Glacier greenstone ground Gulch head Herendeen Bay inches Innoko intake Island July June Kigluaik Mountains Kiwalik River Kougarok Kruzgamepa Lignite limestone localities located lode lower mineral mining mountains Nome occur operations Ophir Creek outcrops pay streak peat placer gold placer mining Prince William Sound probably production prospecting pyrrhotite quartz reconnaissance reported sand schists season second-feet September Seward Peninsula shaft shales shore side slate slopes sluicing square miles stream sulphides summer surface Survey thickness tion topographic tributaries tunnel U. S. Geol Unga Island upper Valdez valley values veins winter Yukon zone