Magnesian-Magnetite Ore Formation

1988 ◽  
Author(s):  
B.M. Strunin ◽  
O.A. Duzhikov ◽  
A.K. Mkrtychyan
Keyword(s):  
Ore Formation ◽  
Magnetite Ore

Features of Ore Formation of Epithermal Ag-Au Teploe Deposit (Northeast Russia)

2018 ◽  
Vol 481 (3) ◽  
pp. 281-284
Author(s):  
E. Kolova ◽  
◽  
H. Savva ◽  
A. Sidorov ◽  
A. Volkov ◽  
...  
Keyword(s):  
Northeast Russia ◽  
Ore Formation

scholarly journals Mechanisms of Pig-iron Making from Magnetite Ore Pellets Containing Coal at Low Temperature.

2001 ◽  
Vol 41 (11) ◽  
pp. 1316-1323 ◽  
Author(s):  
Kazuhiro Nagata ◽  
Rie Kojima ◽  
Taichi Murakami ◽  
Masahiro Susa ◽  
Hiroyuki Fukuyama
Keyword(s):  
Low Temperature ◽  
Pig Iron ◽  
Ore Pellets ◽  
Magnetite Ore

scholarly journals Trace element catalyses mineral replacement reactions and facilitates ore formation

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yanlu Xing ◽  
Joël Brugger ◽  
Barbara Etschmann ◽  
Andrew G. Tomkins ◽  
Andrew J. Frierdich ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Trace Elements ◽  
Fluid Flow ◽  
Large Scale ◽  
Metal Accumulation ◽  
Nucleation And Growth ◽  
Reaction Interface ◽  
Ore Formation ◽  
Key Factor ◽  
Mineral Replacement

AbstractReaction-induced porosity is a key factor enabling protracted fluid-rock interactions in the Earth’s crust, promoting large-scale mineralogical changes during diagenesis, metamorphism, and ore formation. Here, we show experimentally that the presence of trace amounts of dissolved cerium increases the porosity of hematite (Fe2O3) formed via fluid-induced, redox-independent replacement of magnetite (Fe3O4), thereby increasing the efficiency of coupled magnetite replacement, fluid flow, and element mass transfer. Cerium acts as a catalyst affecting the nucleation and growth of hematite by modifying the Fe2+(aq)/Fe3+(aq) ratio at the reaction interface. Our results demonstrate that trace elements can enhance fluid-mediated mineral replacement reactions, ultimately controlling the kinetics, texture, and composition of fluid-mineral systems. Applied to some of the world’s most valuable orebodies, these results provide new insights into how early formation of extensive magnetite alteration may have preconditioned these ore systems for later enhanced metal accumulation, contributing to their sizes and metal endowment.

Apatite flotation from brazilite-apatite-magnetite ore

2013 ◽  
Vol 49 (5) ◽  
pp. 811-818 ◽  
Author(s):  
A. A. Lavrinenko ◽  
E. A. Shrader ◽  
A. N. Kharchikov ◽  
I. V. Kunilova
Keyword(s):  
Magnetite Ore
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