«CERARGYRITE» 관련 영어 책
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1
Second Report on a Cooperative Investigation of the ...
Rosita Hills and Silver Cliff districts. ln the Silver Cliff and other mines in rhyolite,
most of the silver values were in cerargyrite, which occurred as flakes or granules
along cracks in manganese-stained rhyolite. Large masses of this ore that were ...
2
The Minerals of North Carolina
Found in the waters of the Atlantic Ocean, from which it can be obtained by
evaporation, and in wells and springs at several points in the Triassic beds, e. g.,
in Chatham, Orange, and Rockingham Counties. CERARGYRITE. In some of the
gold ...
Frederick Augustus Genth, 1891
3
The Enrichment of Ore Deposits
At the Silver Cliff quarry, Custer County, Colo.,1 an area several hundred feet in
diameter in shattered iron-stained rhyo- lite carried silver as cerargyrite to depths
of 30 or 50 feet. The rhyolite near the surface carried some 35 to 50 ounces of ...
William Harvey Emmons, 1917
4
U.S. Geological Survey Professional Paper
Cerargyrite is an extremely stable mineral under the conditions that prevail in the
oxidized zone 2 and is very much less ' See Emmons, W. H., The enrichment of
sulphide ores: U. S. Oeol. Survey Bull. 629, pp. 60-«l, 1913. * According to Cooke
...
5
Geological Survey Professional Paper
no more than several feet in limestone and dolomite host rocks but that it is as
mobile as zinc in unreac- tive host rocks such as quartzite and shale. In oxidized
lead-silver limestone replacement deposits silver commonly occurs as cerargyrite
...
6
OF1999-13: Assessment of metallic and mined energy resources ...
They carry free gold, cerargyrite, hessite, iron and manganese oxides, acanthite,
and other sulfides (Quade and others, 1984). Very finely granular quartz veins
with anomalously high precious-metal contents (as much as 0.4 ppm gold and
3.5 ...
Stephen B. Castor, Larry J. Garside, Joseph V. Tingley, Daphne D. LaPointe, Mario O. Desilets, Liang-Chi Hsu, Patrick M. Goldstrand, Thomas P. Lugaski, and Howard P. Ross
7
Professional paper - United States Geological Survey
A large part of the silver was precipitated as cerargyrite by the ever-present
sodium chloride in the mine water, and cerargyrite is, in fact, the most common
silver mineral in the Tintic district. Some cerargyrite resulted from the direct
replacement ...
Geological Survey (U.S.), 1919
8
Contributions to Economic Geology (short Papers and ...
According to Schrader the dominant silver mineral in the ores found close to the
surface was usually cerargyrite. No specimens of these ores were obtainable for
study. In this area, as elsewhere, cerargyrite is confined to the oxidized zone.
Frederick Leslie Ransome, 1923
According to Schrader the dominant silver mineral in the ores found close to the
surface was usually cerargyrite. No specimens of these ores were obtainable for
study. In this area, as elsewhere, cerargyrite is confined to the oxidized zone.
10
Results of Spirit Leveling in Kansas, 1896 to 1913, Inclusive
The ore is chiefly cerargyrite, associated in a few places with gold. The greatest
depth reached is about 250 feet; all the ore so far excavated is from the oxidized
zone, but incompletely oxidized fragments show remnants of sphalerite and ...
Robert Bradford Marshall, 1914
