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ABSTRACT
A GIS dataset of geological features for the Dendale Lake map area (95C/15), Yukon Territory and Northwest Territories.
Abstract:
The geological map and database are derived from regional mapping in the Dendale Lake (NTS 95C/15) 1:50 000 scale map area, as part of the
Geological Survey of Canada's Central Foreland NATMAP project.
Geological features represented by attributed points, lines, and
polygons have been compiled into a GIS dataset suitable for stand-alone
use, or integration with other data sets. User-defined attributes
provide traditional geological map information with greater detail and
enhancements such as explicit orientation data, and lithologies.
The Dendale Lake map area is situated at the southern end of the
Franklin Mountains in a foothills physiographic setting. The map pattern
in the area is dominated by a broad syncline centered over the La Biche
River and rising to the east and west into structurally imbricated
anticlinal features. The syncline preserves sedimentary strata of Early
Cretaceous age, while the anticlines
expose strata of Late Devonian to Permian age. Fold trends in the area
vary from southeast through south to southwest, and locally interfere with each other. Foreland and
hinterland verging thrust faults associated with the anticlinal features
juxtapose the Devonian and Carboniferous strata. The type section of the
Lower Cretaceous Chinkeh Formation is located in the southeast corner of
the map area on a tributary to the La Biche River.
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