Report of James W. Taylor, on the Mineral Resources of the United States East of the Rocky Mountains [1867]U.S. Government Printing Office, 1868 - 71 strani |
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Stran 4
... rock in view is the early cretaceous sand- stone , capped in places with middle cretaceous limestone . As the high table land of tertiary sandstone extends north of the Raton , it is probable that similar beds exist in that direction ...
... rock in view is the early cretaceous sand- stone , capped in places with middle cretaceous limestone . As the high table land of tertiary sandstone extends north of the Raton , it is probable that similar beds exist in that direction ...
Stran 5
... rock is $ 30 to the ton . The veins are numerous , well defined , and accessible within a district of 10 miles square . Another locality of much interest is Pinos Altos , under lati- tude 33 ° , longitude 108 ° . The enterprise of ...
... rock is $ 30 to the ton . The veins are numerous , well defined , and accessible within a district of 10 miles square . Another locality of much interest is Pinos Altos , under lati- tude 33 ° , longitude 108 ° . The enterprise of ...
Stran 6
... rock , varying in quantities from 100 to 300 pounds , and combined with sufficient gold to defray the expenses of working . 2. Santa Rita , in the same vicinity , worked by the Spaniards nearly a century and a half ago ; ore a rich ...
... rock , varying in quantities from 100 to 300 pounds , and combined with sufficient gold to defray the expenses of working . 2. Santa Rita , in the same vicinity , worked by the Spaniards nearly a century and a half ago ; ore a rich ...
Stran 10
... rock ( of which the mountains , beneath a thin coating of earth , are almost entirely composed ) to a depth of about 300 feet , and will be steadily prosecuted until it reaches , at a depth of from 600 to 800 feet , a large vein known ...
... rock ( of which the mountains , beneath a thin coating of earth , are almost entirely composed ) to a depth of about 300 feet , and will be steadily prosecuted until it reaches , at a depth of from 600 to 800 feet , a large vein known ...
Stran 15
... rocks of Coronation Gulf , and the Mackenzie river flows through a well - wooded tract , skirted by metalliferous ... rock bears east and west , with thin seams of quartz between the laminæ , running in the line of bearing . There are ...
... rocks of Coronation Gulf , and the Mackenzie river flows through a well - wooded tract , skirted by metalliferous ... rock bears east and west , with thin seams of quartz between the laminæ , running in the line of bearing . There are ...
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Report of James W. Taylor, on the Mineral Resources of the United States ... James Wickes Taylor Predogled ni na voljo - 2018 |
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20 per cent aggregate Alder gulch amount artesian assay auriferous average Bannock basin beds belt boring California centre cents per pound claim coast Cobequid hills Colorado considerable copper cretaceous Deer Lodge Deer Lodge county depth discovered discovery distance Drab clay east eastern estimate exploration extent favorable feet formation Fort Benton galena gallon geological gold and silver gold districts gold mining gold-bearing granite Helena inches iron Lake land Laramie Laramie plains lead ledge lignite localities lode Mexico mills mineral Missouri river Montana nearly Nova Scotia ounces Pacific passed placer deposits placer mining portion pre-emption present profit province quantity quartz quartz veins quartzite railroad railway range region rich rock Rocky mountains sandstone Saskatchawan seams shore silurian smelting square miles strata streams sulphurets Summit surface Tangier Territory thickness tion tributary valley vicinity Victoria Virginia City washings western yield