Hollings, Pete, Fralick, Philip, Kissin, Stephen (2004) Geochemistry and geodynamic implications of the Mesoproterozoic English Bay granite–rhyolite complex, northwestern Ontario. Canadian Journal of Earth Sciences, 41 (11) 1329-1338 doi:10.1139/e04-077
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Geochemistry and geodynamic implications of the Mesoproterozoic English Bay granite–rhyolite complex, northwestern Ontario | ||
| Journal | Canadian Journal of Earth Sciences | ||
| Authors | Hollings, Pete | Author | |
| Fralick, Philip | Author | ||
| Kissin, Stephen | Author | ||
| Year | 2004 (November 1) | Volume | 41 |
| Issue | 11 | ||
| Publisher | Canadian Science Publishing | ||
| DOI | doi:10.1139/e04-077Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 483880 | Long-form Identifier | mindat:1:5:483880:1 |
| GUID | 0 | ||
| Full Reference | Hollings, Pete, Fralick, Philip, Kissin, Stephen (2004) Geochemistry and geodynamic implications of the Mesoproterozoic English Bay granite–rhyolite complex, northwestern Ontario. Canadian Journal of Earth Sciences, 41 (11) 1329-1338 doi:10.1139/e04-077 | ||
| Plain Text | Hollings, Pete, Fralick, Philip, Kissin, Stephen (2004) Geochemistry and geodynamic implications of the Mesoproterozoic English Bay granite–rhyolite complex, northwestern Ontario. Canadian Journal of Earth Sciences, 41 (11) 1329-1338 doi:10.1139/e04-077 | ||
| In | (2004, November) Canadian Journal of Earth Sciences Vol. 41 (11) Canadian Science Publishing | ||
| Abstract/Notes | The Mesoproterozoic English Bay Complex consists of a granite-rhyolite assemblage outcropping on the shores of Lake Nipigon in western Superior Province, Canada. It intrudes Neoarchean rocks and is disconformably overlain by a rift–infracratonic basin sedimentary succession recording subsidence following a heating event. The granites and rhyolites are characterized by light rare-earth element (LREE) enrichment (La/Smn = 2.8–5.1) and only weakly fractionated heavy REE (HREE; Gd/Ybn = 1.1–1.6). The felsic igneous rocks are high-K, enriched in Zr, Nb, Y, and REE satisfying all the criteria for an A-type suite. Trace element geochemistry, particularly the absence of any negative Nb anomalies, indicates this melt did not originate in a suprasubduction zone setting, unlike the St. Francois Mountain Complex to the south. The English Bay Complex may record the northern portion of a Mesoproterozoic plume track— a plume that possibly led to earlier igneous activity and infracratonic basin formation to the north and would later interact with a suprasubduction zone margin to the south. | ||
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