Malo, Michel (2004) Paleogeography of the Matapédia basin in the Gaspé Appalachians: initiation of the Gaspé Belt successor basin. Canadian Journal of Earth Sciences, 41 (5) 553-570 doi:10.1139/e03-100
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Paleogeography of the Matapédia basin in the Gaspé Appalachians: initiation of the Gaspé Belt successor basin | ||
| Journal | Canadian Journal of Earth Sciences | ||
| Authors | Malo, Michel | Author | |
| Year | 2004 (May 1) | Volume | 41 |
| Issue | 5 | ||
| Publisher | Canadian Science Publishing | ||
| DOI | doi:10.1139/e03-100Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 483919 | Long-form Identifier | mindat:1:5:483919:8 |
| GUID | 0 | ||
| Full Reference | Malo, Michel (2004) Paleogeography of the Matapédia basin in the Gaspé Appalachians: initiation of the Gaspé Belt successor basin. Canadian Journal of Earth Sciences, 41 (5) 553-570 doi:10.1139/e03-100 | ||
| Plain Text | Malo, Michel (2004) Paleogeography of the Matapédia basin in the Gaspé Appalachians: initiation of the Gaspé Belt successor basin. Canadian Journal of Earth Sciences, 41 (5) 553-570 doi:10.1139/e03-100 | ||
| In | (2004, May) Canadian Journal of Earth Sciences Vol. 41 (5) Canadian Science Publishing | ||
| Abstract/Notes | The Matapédia basin consists of the uppermost Ordovician lowermost Silurian deep-water, fine-grained carbonatesiliciclastic rocks of the Honorat (Garin Formation) and Matapédia groups (Pabos and White Head formations), the lower rock assemblage of the Gaspé Belt in the Gaspé Appalachians. Paleogeographic maps of eight time slices from the Caradocian to the Llandoverian are presented to better understand the tectonosedimentary evolution of the Matapédia basin. Deposition evolved from siliciclastic (Garin Fm.) to argillaceous limestones (Pabos Fm.), to limestones (White Head Fm.). The overall change from terrigenous (Garin Fm.) to limestone facies (White Head Fm.) reflects a change in the source area. Paleocurrent directions and composition of sandstones indicate an orogenic source area to the south for the Garin Formation, which is believed to be the inliers of the Humber and Dunnage zones in the southern Gaspé and New Brunswick Appalachians. Lime muds deposited by turbidity currents coming from the north suggest the Anticosti active carbonate platform as the source area for the White Head Formation. The Matapédia basin was filled from south to north. First deposits, the Garin Formation, occurred south of the Taconian thrust sheets (Humber Zone) and also south of the Grenville basement. This region was the domain of the Ordovician Iapetus Ocean (Dunnage Zone). The northern limit of the basin migrated northward during deposition of the Matapédia Group in AshgillianLlandoverian times and reached its actual northern limit at the very end of the Llandoverian (C6), when siliciclastic facies of the lower Chaleurs Group were deposited. | ||
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