Surficial geology, Tightfit Lake, British Columbia / [by] D.H. Huntley ... [et al.].: M183-1/126-2013E-PDF

"Canadian Geoscience Map 126 depicts the surficial geology over some 790 km2 covered by the Tightfit Lake map sheet (NTS 94-O/10) in northeastern British Columbia. The map area lies at the western limit of the Etsho Plateau and northwest limit of the Fort Nelson Lowland. This boundary is a major drainage divide: Klenteh Creek and other tributaries to Kiwigana and Fort Nelson rivers drain the south-facing escarpment of the Etsho Plateau and Fort Nelson Lowland; to the north, the plateau and Tightfit Lake drain north into the Petitot River valley. Bedrock is mantled by unconsolidated earth materials that dates to the Late Pleistocene (Late Wisconsinan Glaciation, > 25 ka to ca. 10 ka) and non-glacial Holocene (ca. 10 ka to present). Deposits of till, green on the map, are generally suitable for placement of infrastructure. Glaciofluvial and eolian deposits with mineral, aggregate, and groundwater potential are coloured orange and buff. Slopes disturbed by landslides, debris flows, and rock falls appear brown and pink. Glaciolacustrine and organic deposits with sporadically discontinuous permafrost are coloured purple and grey. Alluvial deposits prone to flooding, erosion, and sedimentation appear yellow on the map"--Abstract.

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Publication information
Department/Agency Canada. Natural Resources Canada.
Geological Survey of Canada.
Title Surficial geology, Tightfit Lake, British Columbia / [by] D.H. Huntley ... [et al.].
Series title Canadian geoscience map ; No. 126
Publication type Series - View Master Record
Language [English]
Format Electronic
Electronic document
Note(s) Includes a legend.
Includes bibliographical references.
Includes abstract in French.
Publishing information Ottawa : Natural Resources Canada, c2013.
Author / Contributor Huntley, D. H. (David Hayes)
Description 1 map : col.
ISBN 978-1-100-21797-0
Catalogue number
  • M183-1/126-2013E-PDF
Departmental catalogue number 292403
Edition Preliminary version
Cartographic data Scale 1:50,000
Subject terms Geological maps
Lakes
Surficial geology
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