Quaternary Geology of St. Anthony - Blanc-Sablon Area, Newfoundland and QuebecThe area includes the northern extremity of the Northern Peninsula of Newfoundland and part of Quebec and Labrador across the Strait of Belle Isle. The study was conducted because of a need for data on terrain conditions, soil materials and glacial transport required for mineral exploration, the planning of a hydroelectric transmission corridor, for bedrock mapping and forest inventory, and for land capability studies. There is also a shortage of Quaternary geological information in a key area. This report synthesizes earlier accounts, enlarges on certain aspects in the light of new data and concepts, and puts the results in a regional context. Field work was conducted mainly in 1969, with brief topical studies in small areas in 1972 and 1974. Mapping was initiated using airphoto interpretations and was checked where possible on the ground by observation along roads and coasts. Limited helicopter transport helped in a few isolated areas, and one fixed-wing reconnaissance was made. |
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CONTENTS | 1 |
Surficial deposits and geomorphological features | 14 |
20 | 36 |
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Anticline basal bedrock Belle Isle Bradore Moraine Broken Skull Cambrian carbonate chert clastics clasts coarse conodont deposits dolomite dolostone Duo Lake Early Devonian Earn Group Eifelian facies fault Gabrielse Geological Survey glaciaire glacier grained Grey Islands grey to black Hare Bay Haywire Formation Highlands of St ice cap ice flow L'Anse aux Meadows Labrador laminated Late Laurentide ice light grey limestone locally Lochkovian Long Range Mountains lower Mackenzie Mountains Mackenzie Platform marine limit Middle Devonian mineral Nahanni map area Newfoundland orange weathering Ordovician outcrop overlying plutons Portrait Lake Formation Pragian Precambrian Prevost quartz sandstone Rabbitkettle Formation ridge River rock sandstone Sapper Formation scree sea level sediment Selwyn Basin shale siltstone silty limestone Silurian South Nahanni South Nahanni River Strait of Belle strata stratigraphic surface Survey of Canada thick bedded thin bedded unconformity unit upper white weathering Yukon Yusezyu Zone