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Walkway Over Cyanide Pools

February 3rd, 2016 | by BTC News
Walkway Over Cyanide Pools
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Check out these mining pool images:

Walkway Over Cyanide Pools
mining pool
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Nothing like a stroll over acrid cyanide pools (during a visit to the Pogo Mine)

Image from page 51 of “Bulletin” (1910)
mining pool
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Identifier: bulletin201unit
Title: Bulletin
Year: 1910 (1910s)
Authors: United States. Bureau of Mines
Subjects: Mines and mineral resources Mines and mineral resources Mining engineering
Publisher: Washington U.S. Govt. Print. Off. [etc.]
Contributing Library: Gerstein – University of Toronto
Digitizing Sponsor: University of Toronto

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regions of the UnitedStates in which the coals are but a little altered by dynamic influence—that is, where they have a low fixed-carbon ratio—the oils are heavyand of low grade. On the other hand, in regions of more advancedalteration, where the coal has a higher fixed-carbon ratio, the oils arecorrespondingly light and of higher grade. The highest degree ofalteration of the residues usually occurs in the fields where the oilsare highest grade. 79 Hayes, C. W., Coal fields of the United States: TJ. S. Geol. Survey Bull. 213, pp.257-269. 80 Clarke, Frank W., The data of geochemistry : U. S. Geol. Survey Bull. 491, 1911,p. 705. 81 Fieldner, A. C, Smith, H. I., Fay, A. H., and Sanford, Samuel, Analyses of mine andcar samples of coal collected in the fiscal years 1911 to 1913 : Bull. 85, Bureau of Mines,1914, pp. 12-13. 82 White, David, Some relations in origin between coal and petroleum : Jour. Washing-ton Acad. Sci., vol. 5, 1915, p. 203. 36 PROSPECTING AXP TESTIXG FOR OIL AXD GAS.

Text Appearing After Image:
R/A T a VSOMER- -\C 0 M AN C H E^% ^ \ BOSQUE , BAILEY \ HAMILTON \,\ ORYELL \ MENARD Scale of Miles 10 20 30 1 LEGEND Oil poolsGO—V. Isovols Figure i!.—Carbon ratios in north Texas. White maintains that in regions where the progressive devolatiliza-tion of the organic deposits in any formation has passed a certain OIL-FIELD ROCKS AND MINERALS. 37 point, marked in most regions by 65 to 70 per cent of fixed carbon(pure-coal basis) in the associated or overlying coals, commercial oilpools are not present in that formation, nor in any other formationsnormally underlying it, but commercial gas pools may occur in abroader zone of higher carbonization. By drawing lines through points of equal fixed-carbon content ina coal field, a system of lines resembling contours will be developed,which have been termed isovols, as shown in Figure 2. The isovolsshow both the extent and alteration of the coals and no oil can beexpected beyond the limits of isovols that show more than 65 percent fixed

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Image from page 350 of “Memoirs of the Geological Survey of India” (1859)
mining pool
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Identifier: memoirsofgeoi171880geol
Title: Memoirs of the Geological Survey of India
Year: 1859 (1850s)
Authors: Geological Survey of India
Subjects: Geology Mines and mineral resources
Publisher: Calcutta : Pub. by order of the Governor-General of India
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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fecit ■ ■■ irkiirf Lith SIWALIK CONGLOMERATE AND SANDSTONE. :A STI A LG AD, MAJtWAT AND KHASOR HILLS. 61 the brook and amount in all to about 350 cubic yards. It is some-what impure from sand and pebbles mixed with it, and would weigh per-haps in all 550 tons. Of liquid tar in pools, there was in May 1870 about100 gallons. He did not consider it likely the oil-bearing beds continuedbituminous to any great distance, but, owing to their thickness, thoughtit highly probable that borings would meet with success as to the yieldof oil. Mr. Lymans description of the section differs a good deal from thatrecorded in my note book (perhaps he refers to some neighbouring local-ity) , and he states that a brown sandy lime rock, evidently about thehorizon of the layers from 4 to 8 in the above list, contains Productusand other fossils. Of these I have found no trace, nor of any recogniza-ble fossil until I had reached the shaly and flaggy beds with small Cera-tites, beneath the soft greyish-w

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