| Title | Surficial geology, Kyklo Creek, British Columbia |
| Download | Downloads |
| Author | Smith, I R |
| Source | Geological Survey of Canada, Open File 5307, 2009, 1 sheet; 1 CD-ROM, https://doi.org/10.4095/247302 (Open Access) |
| Links | Metadata - Métadonnées
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| Year | 2009 |
| Alt Series | British Columbia Ministry of Energy, Mines and Petroleum Resources, Map 2009-1 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Maps | 1 map |
| Map Info. | surficial geology, glacial deposits and landforms, 1:50,000 |
| Media | paper; CD-ROM; digital; on-line |
| File format | readme / lisez-moi
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| File format | e00 (ESRI® ArcExplorer v. 2.0 is included / est fourni); shp; pdf; shx; dbf; tif; JPEG2000 |
| Province | British Columbia |
| NTS | 94I/11 |
| Area | Kyklo Creek |
| Lat/Long WENS | -121.5000 -121.0000 58.7500 58.5000 |
| Subjects | surficial geology/geomorphology; glacial deposits; glaciofluvial deposits; tills; alluvial deposits; fluvial deposits; organic deposits; glacial features; glacial landforms; moraines; glacial history;
glaciolacustrine deposits; colluvial deposits; Laurentide Ice Sheet; Cenozoic; Quaternary |
| Released | 2009 04 28 |
| Abstract | Kyklo Creek (NTS 94I/11) map area was inundated by the Laurentide Ice Sheet during the late Wisconsinan glaciation (ca. 25 000 - 10 000 years ago). A thick blanket of clay and fine-silt-rich till was
deposited by westward flowing ice across most of the region; glacial flow direction is depicted by west and southwestward-oriented flutings that also exhibit a rotation of flow around a bedrock-cored upland situated in the northeast part of the map.
The area is dominantly flat, and covered extensively by bog and fen deposits. Thick peat accumulations (>2-3 m) locally form hummocky surfaces, accentuated by thermokarst (melt) of underlying discontinuous permafrost (units O1k, Ok). Hummocky till,
including patterns interpreted to represent controlled moraines and crevasse-squeeze ridges lie only a few metres above the surrounding wetlands, and are typically covered by an aspen-dominated Boreal forest cover. Prominent ice-marginal channels
that formed during regional deglaciation are depicted in the northwest part of the map area. There, a small glaciofluvial fan (unit Gf) provided a local aggregate source (now exhausted). It is likely that other such deposits occur in similar
geographic associations, however, the ability to detect them is greatly limited by the extensive wetland and forest cover, in addition to the general difficulty accessing this terrain. Outcrops of Shaftesbury Formation shale bedrock are found in the
northeast part of the map area. Only a thin till veneer mantles this bedrock-cored upland in contrast to the rest of the map area where borrow pits expose thickness of till >4-10 m. |
| GEOSCAN ID | 247302 |
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