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![The Central Foreland NATMAP Project](images/pagetop.gif)
ABSTRACT A GIS dataset of geological features for the
Babiche Mountain map area (95C/8), Yukon Territory and Northwest Territories.
Abstract:
The geological map and database are derived from regional mapping in the
Babiche Mountain (NTS 95C/8) 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 at visited outcrops.
The Babiche Mountain map area is
situated at the southern end of the Franklin Mountains in a foothills
physiographic setting. The geology of the area is characterised by
sedimentary strata, of Late Devonian to Early Cretaceous age, exposed in
a series of asymmetrical box or kink folds whose geometry is
controlled largely by the competence of the Carboniferous
Mattson Formation. Structure in the area is dominated by the La Biche
and Kotaneelee anticlines trending approximately north. Minor faults with
less than a few hundred metres of displacement are also reflected in the
map pattern. En echelon folds at the southern end of the Kotaneelee
Range link the Kotaneelee anticline with the Mount Martin anticline to
the south. Stratigraphic improvements include the recognition
of Permian strata above the Mattson Formation informally known as the
Tika map unit, the assignment of Triassic strata to the Toad Formation,
and the recognition of the Lower Cretaceous Chinkeh Formation.
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