Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6440984 | Lithos | 2012 | 17 Pages |
Abstract
⺠Northern Idaho contains Belt Supergroup equivalent metamorphic tectonites. ⺠This study utilized Lu-Hf garnet geochronology and porphyroblast-fabric relationships. ⺠The Belt Supergroup underwent two episodes of Proterozoic deformation and metamorphism. ⺠M1 metamorphism and D1 deformation occurred in the Belt Supergroup at 1.4-1.3 Ga. ⺠Grenvillian age (1.1-1.0 Ga) metamorphism (M2) and deformation (D2) overprinted M1/D1.
Keywords
Related Topics
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Earth and Planetary Sciences
Geochemistry and Petrology
Authors
Timothy O. Nesheim, Jeffrey D. Vervoort, William C. McClelland, Jane A. Gilotti, Helen M. Lang,