Pyrrhotite textures and their genetic implications in the Hongtoushan massive sulphide deposit, Liaoning Province, China
The Archaean massive sulphide Cu-Zn deposit at Hongtoushan has been metamorphosed to upper amphibolite facies. An investigation on ore textures shows that pyrrhotite in the deposit was originally produced by submarine exhalation, and subsequently metamorphosed, annealed and recrystallised. Deformati...
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Published in | Acta geochimica Vol. 20; no. 3; pp. 210 - 218 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Dordrecht
Springer Nature B.V
01.09.2001
Department of Earth Sciences, State Key Laboratory of Metallogeny of Endogenic Metal Deposits,Nanjing University, Nanjing 210093, China |
Subjects | |
Online Access | Get full text |
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Summary: | The Archaean massive sulphide Cu-Zn deposit at Hongtoushan has been metamorphosed to upper amphibolite facies. An investigation on ore textures shows that pyrrhotite in the deposit was originally produced by submarine exhalation, and subsequently metamorphosed, annealed and recrystallised. Deformation textures formed by progressive metamorphism of pyrrhotite were erased almost completely under peak conditions, and the presently-existing deformation textures and ore mylonites are largely resultant from diaphthoresis. Deformation and annealing of pyrrhotite could have been enhanced by fluids. Retrogressive fluids are characterized by high oxygen fugacity. [PUBLICATION ABSTRACT] |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1000-9426 2096-0956 1993-0364 2365-7499 |
DOI: | 10.1007/BF03166141 |