Mineral Compositions and Equilibria in the Metamorphosed Iron Formation of the Gagnon Region, Quebec, Canada
- 1 February 1969
- journal article
- Published by Oxford University Press (OUP) in Journal of Petrology
- Vol. 10 (1) , 56-101
- https://doi.org/10.1093/petrology/10.1.56
Abstract
Forty-seven specimens of the Wabush Iron Formation were collected from ten outcrop areas. Twenty-five specimens contain the assemblage (1), quartz+clinopyroxene+calcite with or without orthopyroxene, grunerite, magnetite, ankerite, and siderite. Five specimens contain assemblage (2), quartz+clinopyroxene+actinolite+calcite+magnetite+hematite, and two contain assemblage (3), quartz+orthopyroxene+actinolite+magnetite+hematite. In three specimens of assemblage (1), graphite occurs in the absence of magnetite; pyrrhotite and pyrite occur separately or together in specimens with assemblage (1).Keywords
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