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Conferences & Meetings XIII All-Russian conference on thermobarogeochemistry in conjunction with IV APIFIS symposium
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Gas composition of fluid inclusions in barophile accessory minerals from late paleozoic magmatic complexes (middle Tien-Shan)

RMS-DPI code:  2008-1-46-0
Scientific session:  Fluid inclusions in magmatic minerals as indicators of magmas generation conditions and evolution
Author listing:  Yusupov R.G., Rafikov Y.M.
Principal author:  Rafikov Yalkin Mukhamedovich
Language:  Russian
Abstract - Summary 
(short description):
The characteristic feature of late Paleozoic magmatic complexes of Middle Tien Shan rocks and their barofile refractory accessory minerals is accessory mineral system of Fe, Mn Е (Cr, N, V, Ti, Al...) - Si-C. On structure of gas-fluid inclusions on accessory zussit taking place in holocrys-talline accretion with khamrabaevite, graphite and calcite it is referred to a category with nitrogen-hydrides (N2-CN4-C2H2...) structure of inclusions at participation CO2 in quality oxidizing compo-nent. Foregoing system is concerned to category with nitric-hydride (N2-CN4-C2H2...) composition of inclusions with participation of CO2 as the quality oxidizing component. Because of the mixture of gas-fluid inclusions and accessory zussit which are contained in full-crystalline accretion with khamrabaevite, graphite and calcite. The gas composition of high-pressure minerals distinctly spe-cializes on H2, He, CH, etc. In diamonds, silicides, carbides and in other minerals concentration of "heavy" gases prevails above "easy". Lateral changes of gas-fluid components save carbonaceous components of gas mixture and become stronger because of H2 or CN4. Transformation of gas-fluid systems towards increasing of oxide components (H2O, CO2, etc.) results accretion of importance of fugacity of oxygen in conditions of the earth's crust. Depending on the conditions of forming initial abyssal fluxes, whole accessorly-mineral variety of rocks could be subdivided into the following groups: high-pressure-refractory (classes of native metals and nonmetals of silicides of metals and nonmetals, carbides, etc.) with strongly pronounced siderophilic components of mineral composi-tion, theirs metallic character of connections etc., with developing of ultramafites, mafites, lam-proites of abyssal type (i.e. in conditions of upper mantle).
Barofile-hard- or moderately fusible (graphite, silicides, Fe, etc., minerals of family Pt, nickel bearing native Fe, intermetallides Au, Fe, Pd, etc.,) in connection with the development of potas-sium bearing basaltoides and rocks of the basic composition. Moderately and low-melting (native metals, metal alloys and intermetallides on the basis of participation Pb, Zn, Cu, Ag, Bi, etc.) dated for magmatic rocks of moderately sour, sour and subalkaline lines.
 
RMS-DPI code:  2008-1-46-0
Proceeedings volume 
in the RMS catalogue:
 
Proceedings of XIII International conference on thermobarogeochemistry and IVth APIFIS symposium. Volume 1.
Pages:  167-170
File of proceedings 
(PDF): 
 106 K
Status:  printed
Accepted:  28/06/2008
Published on-line:  12/02/2009
Permanent address of publication:  http://www.minsoc.ru/2008-1-46-0/
Contact author(s):  Rafikov, Yalkin Mukhamedovich
 

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