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High‐pressure, high‐temperature rocks from the base of thick continental crust: Geology and age constraints from the Manicouagan Imbricate Zone, eastern Grenville Province
Author(s) -
Indares Aphrodite,
Dunning Greg,
Cox Richard,
Gale David,
Connelly Jim
Publication year - 1998
Publication title -
tectonics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.465
H-Index - 134
eISSN - 1944-9194
pISSN - 0278-7407
DOI - 10.1029/98tc00373
Subject(s) - geology , terrane , orogeny , geochemistry , metamorphism , continental crust , laurentia , archean , petrology , crust , paleontology , paleozoic , tectonics
The Grenville Province of the Canadian Shield is composed of crustal material with Laurentian affinities, involved in continental collision during the Grenvillian Orogeny between 1.19 and 0.98 Ga. In the eastern Grenville Province, the Manicouagan Imbricate Zone (MIZ) is composed of Paleoproterozoic (Labradorian, ∼1.6 Ga) and Mesoproterozoic (Pinwarian, ∼1.4 Ga) crustal segments that were metamorphosed under high‐pressure, high‐temperature (high‐P‐T) conditions (P∼1800 MPa and 800°