Parmenter, Andrew C, Lin, Shoufa, Corkery, M Timothy (2006) Structural evolution of the Cross Lake greenstone belt in the northwestern Superior Province, Manitoba: implications for relationship between vertical and horizontal tectonism. Canadian Journal of Earth Sciences, 43 (7) 767-787 doi:10.1139/e06-006
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Structural evolution of the Cross Lake greenstone belt in the northwestern Superior Province, Manitoba: implications for relationship between vertical and horizontal tectonism | ||
| Journal | Canadian Journal of Earth Sciences | ||
| Authors | Parmenter, Andrew C | Author | |
| Lin, Shoufa | Author | ||
| Corkery, M Timothy | Author | ||
| Year | 2006 (July 1) | Volume | 43 |
| Issue | 7 | ||
| Publisher | Canadian Science Publishing | ||
| DOI | doi:10.1139/e06-006Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 484189 | Long-form Identifier | mindat:1:5:484189:4 |
| GUID | 0 | ||
| Full Reference | Parmenter, Andrew C, Lin, Shoufa, Corkery, M Timothy (2006) Structural evolution of the Cross Lake greenstone belt in the northwestern Superior Province, Manitoba: implications for relationship between vertical and horizontal tectonism. Canadian Journal of Earth Sciences, 43 (7) 767-787 doi:10.1139/e06-006 | ||
| Plain Text | Parmenter, Andrew C, Lin, Shoufa, Corkery, M Timothy (2006) Structural evolution of the Cross Lake greenstone belt in the northwestern Superior Province, Manitoba: implications for relationship between vertical and horizontal tectonism. Canadian Journal of Earth Sciences, 43 (7) 767-787 doi:10.1139/e06-006 | ||
| In | (2006, July) Canadian Journal of Earth Sciences Vol. 43 (7) Canadian Science Publishing | ||
| Abstract/Notes | Evidence for both vertical and horizontal movement is well preserved in the Cross Lake greenstone belt in the northwestern Superior Province. The vertical movement components are concentrated in high-strain zones along pluton–greenstone contacts and are characterized by pluton-side-up or greenstone-side-down movement, and the geometry, kinematics, and strain distribution are consistent with a vertical tectonic model involving diapirism and sagduction. The horizontal components are concentrated in major east-southeast-trending dextral high-strain zones and in subordinate northeast-trending sinistral, antithetic high-strain zones and can be readily explained by a horizontal tectonic model involving dextral transpression. Results of a detailed structural analysis indicate that the vertical and horizontal tectonism were more or less synchronous, and there was a transition from dominantly vertical tectonism at the early stages to dominantly horizontal tectonism at the late stages. The Cross Lake Group, consisting of Timiskaming-type sedimentary rocks, was deposited in a synclinal keel between granitoid domes associated with vertical tectonism. It is suggested that synchronous vertical and horizontal tectonism was a common process in the Neoarchean and might represent a transition from dominant vertical tectonism in the Mesoarchean (and Paleoarchean?) to dominant horizontal tectonism in the Proterozoic and Phanerozoic. | ||
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