Geofluids / 2018 / Article / Tab 7

Research Article

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

Table 7

The features of mineral zoning.

FeS2CuFeS2Cu5FeS4Cu2SFe2O3+Cu

S systemH2SH2S + HSH2S + HSHS + S2−
pHAcidWeak acid neutralNeutral-weak alkalinityAlkalinityWeak acid alkalinity
EhWeak reductionReductionReductionReductionOxidation
MediumMediumMediumMediumMedium-high
Medium-highMediumMedium-highMediumMedium
CementQuartzQuartz + carbonateQuartz + carbonateQuartz + carbonateCarbonate + clay
Temperature variationMediumMedium-low temperatureMedium-lowLowMedium

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