| Reference Type | Journal (article/letter/editorial) |
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| Title | Geomorphological conditions of gabbro weathering at Mount Megantic, Quebec |
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| Journal | Canadian Journal of Earth Sciences |
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| Authors | Clément, P. | Author |
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| Kimpe, C. R. De | Author |
| Year | 1977 (October 1) | Volume | 14 |
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| Issue | 10 |
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| Publisher | Canadian Science Publishing |
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| DOI | doi:10.1139/e77-194Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 475071 | Long-form Identifier | mindat:1:5:475071:4 |
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| GUID | 0 |
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| Full Reference | Clément, P., Kimpe, C. R. De (1977) Geomorphological conditions of gabbro weathering at Mount Megantic, Quebec. Canadian Journal of Earth Sciences, 14 (10) 2262-2273 doi:10.1139/e77-194 |
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| Plain Text | Clément, P., Kimpe, C. R. De (1977) Geomorphological conditions of gabbro weathering at Mount Megantic, Quebec. Canadian Journal of Earth Sciences, 14 (10) 2262-2273 doi:10.1139/e77-194 |
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| In | (1977, October) Canadian Journal of Earth Sciences Vol. 14 (10) Canadian Science Publishing |
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| Abstract/Notes | Chemical and mineralogical analyses of a deeply weathered gabbroic rock showed that smectite (nontronite) is the main secondary mineral in association with iron-rich chlorite. The granular disintegration of the rock is mainly induced by the alteration of ferromagnesian minerals. The occurrence of silica-rich minerals is explained by the confining conditions imposed by the depressed topography of the site; along steeper slopes gibbsite is found in thinner saprolites. Weathering, though still proceeding, must have started before the last glaciation in order to explain the thickness of the profile; this is also supported by geomorphological considerations. The succession of erosion and weathering stages during Pleistocene times contributed to the shaping of the gabbroic depression. |
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