Geology, Mahony Lake (northwest), Northwest Territories / [by] K.M. Fallas.: M183-1/88-2012E-PDF

"The northwest quadrant of the Mahony Lake map area (NTS 96-F) encompasses a low, vegetated plateau at the western edge of the Great Bear Plain, Northwest Territories. The somewhat higher ground between Mahony Lake and the Hare Indian River to the north is informally referred to as the Mahony dome. Most of the area is underlain by broadly folded Paleozoic carbonate strata, disrupted locally by steep reverse faults. The structural features suggest a geological kinship with the Franklin Mountains to the west. Due to a veneer of unconsolidated Quaternary deposits, bedrock exposures are not abundant; however, the presence of carbonate very close to surface has allowed for the development of numerous karst features, such as sinkholes, disappearing streams, and turloughs, where bedrock may be exposed. Cretaceous siliciclastic strata are preserved in a synclinal structure west of Mahony Lake. Truncations of Ordovician to Devonian strata beneath the sub-Cretaceous unconformity delineate part of the Keele Arch, a feature that stood topographically higher than the surrounding area before deposition of the Devonian strata, and again before deposition of the Cretaceous strata"--Abstract.

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Publication information
Department/Agency Canada. Natural Resources Canada, issuing body.
Geological Survey of Canada, issuing body.
Title Geology, Mahony Lake (northwest), Northwest Territories / [by] K.M. Fallas.
Series title Canadian geoscience map ; No. 88
Publication type Series - View Master Record
Language [English]
Format Electronic
Electronic document
Note(s) Includes bibliographical references.
Includes abstract in French.
Publishing information Ottawa : Natural Resources Canada, c2013.
Author / Contributor Fallas, K. M., author.
Description 1 map : col.
ISBN 978-1-100-20895-4
Catalogue number
  • M183-1/88-2012E-PDF
Departmental catalogue number 292211
Edition Preliminary version
Cartographic data Scale 1:100,000
Subject terms Geological maps
Lakes
Surficial geology
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