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Research Article

Physiochemical Restrictions of Mineral Zoning of Sediment-Hosted Stratiform Copper Deposit in SW China

Table 6

The pH, Eh , and range of mineral assemblage at different temperature.

FeS2CuFeS2Cu5FeS4Cu2S

373 K
 Eh(−0.07, 0.33)(−0.61, 0.06)(−0.43, 0.06)(−0.80, −0.33)
 pH(0, 2.7)(1, 10)(1, 10)(6.4, 12.2)
(−63.1, −47.5)(−63.1, −55)(−63.1, −56.8)(−63.14, −56.2)
(−25.0, −8.7)(−38.4, −25.0)(−18.2, −8.7)(−34.3, −8.7)
423 K
 Eh(−0.07, 0.33)(−0.59, 0.07)(−0.80, −0.59)(−0.80, 0.12)
 pH(0, 2.6)(0.8, 8.8)(7, 10.7)(10.7, 11.6)
(−55.5, −39.8)(−55.5, −41.7)(−55.5, −46.1)(−55.5, −48)
(−20.5, −6.5)(−32.5, −20.5)(−12.7, −6.5)(−29.7, −6.5)
473 K
 Eh(−0.08, 0.34)(−0.59, 0.07)(−0.80, −0.59)(−0.80, −0.08)
 pH(0, 2.4)(0.8, 8.2)(6.3, 10.1)(10.1, 11.3)
(−48.6, −34.1)(−48.6, −36.4)(−48.6, −41)(48.6, −42.3)
(−16.9, −5.1)(−28.3, −16.9)(−11.1, −5.1)(−26.1, −5.1)
523 K
 Eh(−0.08, 0.34)(−0.58, 0.08)(−0.80, 0.59)(−0.80, −0.20)
 pH(0, 2.3)(0.7, 7.6)(7.6, 9.4)(9.4, 11.0)
(−43.4, −29.3)(−43.4, −30.8)(−43.4, −35.8)(−43.4, −37)
(−14.0, −4.1)(−24.9, −14.0)(−8.6, −4.1)(−23.2, −4.1)

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