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Mississippi valley-type Deposit

Chemical Process (Solution-Rock interaction) - Ground Surface (Meteoric)


Red bed copper deposit

Required Geological Setting

Paleogene and older sediments


Bedded Pb-Zn deposit replacing carbonate rocks such as limesotne and/or dolomite stone. Deposits are in sedimentary rocks in continents near oil fields. Host rock is subjected only to diagenesis, and not to any volcanic activity nor metamorphism. Sulfide minerals are considered to be deposited from high salinity (more than 15 % NaCl) low temperature (20-25 degree) meteoric water originated from petroleum.

Mineral Assemblages

Galena, Sphalerite, Baryte, Fluorite

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