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Abstract

 
 
UDC 552.11:552.3

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ROLE OF ORE MAGMAS IN THE FORMATION OF DEPOSITS

S. S. Dolgushin 1, A. P. Dolgushin 1,2

1 Siberian Research Institute of Geology, Geophysics and Mineral Resources, Novosibirsk, Russia; 2 Berezovgeologia, Novosibirsk, Russia

Notions are substantiated that for a certain group of so-called hydrothermal deposits, not regular lowconcentration hydrothermal solutions, including their more concentrated derivatives, colloids, are not of decisive importance in their formation, but highly concentrated magmatic systems – ore magmas forming deposits by intrusive way, at a time when hydrothermal (including gas-hydrothermal) solutions coexisting with them, being more mobile and chemically active, produce only metasomatic changes in the host rocks and wallrock dissemination, masking the magmatic nature of deposits.

Keywords: ore magma, hydrothermal solution, colloids, solubility, ore matter.

DOI 10.20403/2078-0575-2021-2-84-91

 

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