| Title | Reconnaissance surficial geology, Hanbury River, Northwest Territories, NTS 75-P |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Dyke, A S; Kerr, D E |
| Source | Geological Survey of Canada, Canadian Geoscience Map 186, 2014, 1 sheet, https://doi.org/10.4095/293991  Open Access |
| Links | Surficial geology map collection
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| Links | Collection de données de géologie de surface
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| Image |  |
| Year | 2014 |
| Publisher | Natural Resources Canada |
| Edition | prelim. |
| Document | serial |
| Lang. | English |
| Maps | 1 map |
| Map Info. | surficial geology, glacial deposits and landforms, 1:125,000 |
| Projection | Universal Transverse Mercator Projection, UTM zone 13 (NAD83) |
| Media | on-line; digital |
| Related | NRCan photo(s) in this
publication |
| Related | This publication is related to Reconnaissance surficial
geology, Clarke River, Northwest Territories, NTS 65-M north |
| File format | readme
|
| File format | pdf; rtf; shp; xml; xls; jpg; JPEG2000 |
| Province | Northwest Territories |
| NTS | 75P |
| Area | Eyerberry Lake; Tyrrell Lake; Thelon River; Coldblow Lake; Hanbury River |
| Lat/Long WENS | -106.0000 -104.0000 64.0000 63.0000 |
| Subjects | surficial geology/geomorphology; glacial features; glacial deposits; glacial landforms; tills; sands; gravels; frost cracks; glaciolacustrine deposits; glaciofluvial deposits; organic deposits; alluvial
deposits; eolian deposits; lacustrine deposits; moraines; Cenozoic; Quaternary |
| Program | GEM: Geo-mapping for Energy and Minerals Geomapping for Energy & Minerals (GEM) - Geo-mapping Frontiers |
| Released | 2014 06 17 |
| Abstract | Preliminary surficial geology studies, through aerial photograph interpretation and limited legacy data, were undertaken in the Hanbury River map area to provide an improved understanding of surficial
sediments and glacial history. The general distribution and thickness of sediments reflects the nature of underlying bedrock. The eastern half of the area, underlain by relatively soft Dubawnt Group sedimentary rocks, is generally covered by thick
drift with limited rock outcrop, whereas the western quarter, underlain by gneissic rocks, is extensively bare. Three main ice-flow events are identified. An early southwest flow is seen in the south-central, northwest and in the northeastern
regions. The next flow was northwestward, and affected most of the map area. A final southward flow event affected only the north-central area and is confined in time to the local deglaciation sequence. A succession of glacial lakes (Hanbury,
Tyrrell, Thelon) covered much of the map-area during deglaciation. Relict beaches throughout the map-area attest to a complex history of changing water levels associated with either multiple outlets and/or with differential isostatic recovery.
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| Summary | (Plain Language Summary, not published)
The map identifies surficial materials and associated landforms left by the retreat of the last glaciers. The surficial geology is based on aerial
photograph interpretation and limited fieldwork. This work provides new geological knowledge and improves our understanding of the distribution, nature and glacial history of surficial materials. It contributes to resource assessments and effective
land use management. |
| GEOSCAN ID | 293991 |
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