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Ore-Magmatic Systems of Copper-Molybdenum Deposits

  • V. I. Sotnikov
  • A. P. Berzina
Conference paper
Part of the Special Publication No. 4 of the Society for Geology Applied to Mineral Deposits book series (MINERAL DEPOS., volume 4)

Abstract

Ore deposition concludes a complex cycle of transport and evolution of materials throughout the crust (20–30 km thick) where magmatic and hydrothermal associations, derivatives of a single ore-magmatic system, are being formed. Ore formation takes place in or near porphyry stocks considered as cupolas of intermediate magmatic chambers, the crystallization of which markedly influenced the formation of the flow of ascending fluid as well as a total temperature rise. The zone of magmatic cupolas (stocks) is characterized by more intensive ascending fluid flow. Here, favorable conditions for magmatic- hydrothermal systems exist. Conditions of mineralization in the hypabyssal environment become more complex because of the anatectic chamber, the crystallization of which causes an additional fluid flow into the upper levels of the crust. The development of the ore-magmatic system results from the interaction of subcrustal mafic magma and fluids separating from it with a magmatic melt formed in the crust. Fluids of two types existed in forming copper-molybdenum deposits. The magmatic system includes concrete intrusive bodies of an ore-bearing magmatic complex and the rock volumes adjacent to them. The meteoric-hydrothermal fluid system does not evolve in close juxtaposition with these intrusives.

Keywords

Magmatic System Porphyry Copper Deposit Econ Geol Akad Nauk SSSR Molybdenum Deposit 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1986

Authors and Affiliations

  • V. I. Sotnikov
  • A. P. Berzina
    • 1
  1. 1.Institute of Geology and GeophysicsSiberian Branch of the USSR Acad. Sci.NovosibirskUSSR

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