Pyrite deposition

Acid production and corrosion associated with pyritic deposits is caused by Ferrobacillus ferro-oxidans . 

Important metallic ore deposits include Besshi (Kieslager)-type (strata-bound cupriferous pyritic deposits), strata-bound Mn-Fe-type, skam-type, Kuroko-type and vein-type. Dominant non-metallic deposits are limestone, clay, native sulfur, zeolite, silica and gypsum deposits. The deposits are divisible into three groups, based on their ages of formation Carboniferous-Jurassic, Cretaceous-Paleogene and Tertiary-present. 

Doi, M. (1961-1962) Geology and cupriferous pyrite deposits (Besshi-type) of the Sanbagawa metamorphic zone including the Besshi and Sazare mines in central Shikoku. Mining Geology, II, 610-626 12, 1-15, 6.3-83. 

Takeda, H. and Sekine, Y. (1960) A consideration on the metamorphim of cupriferous pyritic deposit at Sekizen, Ehime Prefecture. Mining Geology, 10, 369-379 (in Japanese with English abst.). 

R.I. Semigin, GornyiZh 1969, 145(8), 63-4(Russ) CA 72, 23036s(1970) [Description of spontaneous expins occurring on Aug 2, 1968, in 3 boreholes made in the chalco-pyrite deposit of Gaisk combine. The ore in which boreholes were drilled contd FeS2,... 

Dill H. G., PoIImann H., Bosecker K., Hahn L., and Mwiya S. (2002) Supergene mineralization in mining residues of the Matchless cupreous pyrite deposit (Namibia)— a clue to the origin of modern and fossil duricrusts in semiarid climates. J. Geochem. Explor. 75, 43-70. 

Fig. 4-6. Relation between carbon dioxide in soil and lithogeochemical halos at Xuanchengshan cupriferous pyrite deposit, Anhui province, China.

Dadashev et al. (1971) describe a soil-gas survey over the Filizchai pyrite deposit in Azerbaijan. They report a definite relation between the position of the ore body and the composition of the soil air. As the survey line enters the ore field in the southwest, there... 

Meishan, China, 440,441 Wang-wang, China, 124, 125 Precious-metal deposits, 439. See also Gold deposits Pyrite deposits... 

Jensen, M.L. and Whittles, A.W.G., 1969. Sulfur isotope of the Nairne pyrite deposit. South Australia. Miner. Deposita, 4 241—247. i... 

Here, 3.75 mol of organic matter are consumed for each mole of pyrite deposited, and an equivalent quantity of 02 is left behind in the atmosphere-ocean system. The excess 02 is used up again in the oxidation of pyrite when it is brought to Earth s surface by the sedimentary rock cycle. With regard to the oxygen budget, it is important to note that disulfide represents... 

Within the oxidation zones of copper-pyrite deposits very complicated processes take place due to the activity of micro-organisms. The processes can be... 

Major pyrites deposits were also developed in Japan, Canada, the United States, and other countries by the middle of the 19 century. Out of the fool s gold msh to take advantage of the rising demand, the output of one country soon outpaced those of all other countries combined that country was Spain. 

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