Hydrothermal systems in peridotites at slow-spreading ridges. Modeling phase transformations and material balance: Role of gabbroids

作者: S. A. Silantyev , A. A. Novoselov , M. V. Mironenko

DOI: 10.1134/S0869591111030027

关键词:

摘要: This work was aimed on the estimation of role gabbro in ore mobilization during hydrother� mal transformation oceanic (gabbro-peridotite) crust at slowspreading midocean ridges. Kinetic-ther� modynamic modeling used to reconstruct geochemical and mineralogical trends evolution gab� broids their hydrothermal interaction with marine fluid. The results our simulation offered a new insight into some problems material balance formation process slow� spreading It shown that root zones all known MAR fields related serpentinites are made up ultrabasic rocks located within peridotite protolith near hot uncooled gabbroic bodies. also demonstrated observed mineral diversity metagab� bros ridges provided by fluid percolating through Hesstype bodies . established almost cooled gabbroid bod� ies, being involved circulation shallow zones, may play an important redistribution crust.

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