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TitleSurficial geology, Hartley Bay, Douglas Channel area, British Columbia, parts of NTS 103-H/6 and 11
DownloadDownloads
AuthorMaynard, D E; Weiland, I C; Blais-Stevens, A; Geertsema, M
SourceGeological Survey of Canada, Canadian Geoscience Map 302, 2017, 1 sheet, https://doi.org/10.4095/299824
Year2017
PublisherNatural Resources Canada
EditionPrelim.
Documentserial
Lang.English
Maps1 map
Map Info.surficial geology, surficial deposits terrain stability, 1:25,000
ProjectionUniversal Transverse Mercator Projection, zone 9U (NAD83)
Mediaon-line; digital
RelatedFor all publications in this survey, see the following publications
File formatreadme
File formatpdf (Adobe® Reader®); rtf; xlsx (Microsoft® Excel® 2010); gdb (ESRI® ArcGIS(TM) v.10.x); shp (ESRI® ArcGIS(TM) v.10.x); xml (ESRI® ArcGIS(TM) v.10.x); mxd (ESRI® ArcGIS(TM) v.10.x)
ProvinceBritish Columbia
NTS103H/06; 103H/11SE; 103H/11SW
AreaHartley Bay; Douglas Channel; Kishkosh Inlet; Verney Passage; Hawkesbury Island; Gribble Island; Wright Sound; Grenville Channel; Coghlan Anchorage; Promise Island
Lat/Long WENS-129.3500 -129.0833 53.5167 53.3111
Subjectssurficial geology/geomorphology; glaciation; Wisconsinian glacial stage; landslides; landslide deposits; debris flows; slope stability; sediment transport; slope development; deformation; debris fans; talus; mass wasting; slopewash deposits; debris flow deposits; rockfall chutes; slumps; postglacial deposits; organic deposits; fens; bogs; wetlands; peat; colluvial deposits; fans; hummocks; weathering; alluvial deposits; alluvial fans; flood plains; marine deposits; beach deposits; terraces; deltaic deposits; emergence; deglaciation; glacial deposits; glaciomarine deposits; glaciofluvial deposits; meltwater channels; tills; clays; silts; sands; gravels; boulders; planning; Fraser Glaciation; natural hazards; geological hazards; terrain stability classification; gravitational slope deformation; tension cracks; rock slides; anthropogenic deposits; folic organic material; diamicton; submarine lanslides; Phanerozoic; Cenozoic; Quaternary
Illustrationslocation maps; index maps; tables; photographs; geoscientific sketch maps
ProgramMarine Geohazards, Public Safety Geoscience
Image
Released2017 07 19
AbstractDouglas Channel is a 100 km long fjord located south of the municipality of Kitimat, in northwest British Columbia. The Hartley Bay map area covers the southern portion of Douglas Channel where it meets Wright Sound and Verney Passage. The area also covers Promise Island, the southwest portion of Gribbell Island, southwest Hawkesbury Island, and a stretch of the western shore of Douglas Channel (mainland) that extends over about 17 km southward from Kiskosh Inlet. Mapping of surficial sediments, compilation of landslide deposits, and preliminary interpretation of bedrock types up to height of land were primarily carried out using British Columbia airphotos dated from 2001, 2003, and 2007 ranging in scales from 1:15 000 to 1:25 000. Older, field-based mapping by the authors in some isolated parts of the study area was incorporated into this mapping, complemented with additional, reconnaissance-level field observation in 2015 and 2016. The photograph (Figure 1) taken from the southwest side of Hawkesbury Island, looking north, shows the surface expression of deep-seated gravitational slope deformation features (DSGSD; black arrows) also called tension cracks or "sackungen".
Summary(Plain Language Summary, not published)
This is one of six surficial geology an d landslide inventory maps that cover Douglas Channel. Douglas Channel is a 100-km long fjord located south of the municipality of Kitimat, in NW British Columbia. The purpose is to provide baseline geoscience information on surface sediments and landslide hazard to decision-makers.
GEOSCAN ID299824