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Concentrates at water table; Supergene enrichment; Cu leached out of surface zone; Concentrates at water table; Raises ore to minable grade
... level plutons (porphyries) set up near-surface hydrothermal circulation systems that concentrate Cu, Mo, and some other metals - supergene enrichment ...
Mineralogy-9703-Resources2.ppt - Search
This is the basis for supergene enrichment and acidic mine drainage Actively Oxidizing Pyrite FeS2 + 3.5 O2 + H2O Fe2+ + 2 SO42- + 2 H+ FeS2 + 14 Fe3+ + 8 H2O 15 ...
Groundwater-Related Deposits Residual laterites/bauxite deposits (Ni,Fe,Al) shallow flow systems, weathering, Eh/pH changes at the water table Supergene enrichment ...
Unit11-processes.ppt - Search
to subsurface ("supergene") enrichment . in metals (e.g., Cu, Pb, Zn) Nesse, Ch. 19 . gossan - oxidised cap formed. by weathering of underlying. mineral deposit (rusty)
Mineralogy-9703-Resources1.ppt - Search
subsurface
metals
gossan
oxidised
weathering
mineral
deposit
Through processes of chemical weathering and supergene enrichment; Under tropical climatic conditions . Laterites are source of metals:
ProcessTech vs Ore Character_AgusSuperiadi_PT Inco.ppt - Search
... heavy sediment grains in a river, waves on a beach Gold, platinum, diamonds, titanium, & tin Concentration by weathering Aluminum (bauxite) Supergene enrichment of ...
... but all metals are valuable Alteration comparable to bulk-mineable greisens in Australia, Spain & Vietnam Supergene depleted copper might indicate enrichment ...
0902rmrpwrpntstrategylr3.ppt - Search
Show that there are significant enrichment for such genes in the dataset. ... enough for a black box but how does one build a diagnostic chip on a “supergene”?
... Langford (1978) and to some degree Dahlkamp (1978) proposed a mainly supergene ... No enrichment was required other than that carried by the detrital grains from the ...
10. Uranium deposits.ppt - Search
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