PALAVRAS EM INGLÊS RELACIONADAS COM «PROTORE»
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10 LIVROS EM INGLÊS RELACIONADOS COM «PROTORE»
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1
Professional paper - United States Geological Survey
COPPER CONTENT OF PROTORE. The average copper content of the wholly
unenriched protore is susceptible only of a rough determination from the data
available. The record of any drill hole that goes through an ore body into protore
...
Geological Survey (U.S.), 1918
2
Au, U, Fe, Mn, Hg, Sb, W, and P Deposits
Free carbon is ubiquitous in the manganese silicatecarbonate protore and in
enclosing phyllites and schists. The manganese silicate-carbonate protore (Dorr
et al., 1956; Ebert, 1963) consists of rhodochrosite and manganoan calcite (most
...
3
Final environmental impact statement for the ...
A portion of Gavilan Mesa highwall would probably collapse on top of protore
piles JLG, J-1A, J-l-A and SP-1 which presently serve as a buttress at the base of
the highwall. These piles contain approximately 1.7 million cubic yards of protore.
United States. Bureau of Land Management. Rio Puerco Resource Area, United States. Bureau of Indian Affairs. Albuquerque Area Office, 1986
4
Tectonic Controls, Timing and Geochemistry of Supergene ...
higher hypogene grades may be a function of the available deep drill data, since
drill holes were usually terminated a short distance into protore once the
supergene enrichment blanket was penetrated. The southwestern part of the
district has ...
5
Jackpile Paguate uranium mine reclamation project: ...
Remaining Uranium Deposits and Protore Stockpiles Approximately 23 million
tons of uranium resources remain at the minesite as stockpiled protore and
unmined deposits. Protore is material that was stockpiled throughout the mining ...
United States. Bureau of Land Management. Albuquerque District, United States. Bureau of Indian Affairs. Albuquerque Area Office, 1985
6
Annotated Bibliographies of Mineral Deposits in the Western ...
The primary, copper-bearing mineralization (protore) at Ray consists of
disseminated pyrite and of innumerable quartz—pyrite veinlets with minor and
erratically distributed chalcopyrite and sparse molybdenite in fractures de—
veloped in the ...
7
Bibliography and Ore Occurrence Data: Indexes
Brazil stratif. itabirite + protore E49 A Al Quadrilatero Ferrífero gibbsite,
concretionary, earthy/ conform. bauxite (Ouro Prêto, gth,hem, pockets, blankets,
to Nova Lima, Mariana), kaolinite over phyllites paleosurf. Brazil E50 M Au,Ag
Morro Velho ...
8
The Geology of Ore Deposits:
Most of the protore is a nondescript, sandy looking, graybrown rock that contains
mainly small crystals of spessartite interspersed in a cement of manganoan
carbonate and minor amounts of fine-grained sulfides. In the deeper parts of the
mine ...
John M. Guilbert, Charles F. Park, Jr., 2007
Within the basal 100 m of the iron formation, up to three protore layers are
developed. The lowest of these layers can measure up to about 25 m in thickness
, and lies about 30 m above the Ongeluk Lava. The middle layer of protore is thin
and ...
10
Geological Survey Professional Paper
Protore grades of porphyry deposits (the copper content before enrichment by
descending waters) seldom exceed 1 percent. An important factor influencing
protore grade may be the availability of sites favorable for deposition of copper ...
