ABSTRACT
 
A GIS dataset of geological features for the Chinkeh Creek map 
area (95C/9), Northwest Territories and Yukon Territory.

Abstract: The geological map and database are derived from 
regional mapping in the Chinkeh Creek (NTS 95C/9) 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 Chinkeh Creek map area is located along the border 
between southwestern Northwest Territories and southeastern 
Yukon near the southern termination of the Franklin Mountains.  
The Kotaneelee and La Biche Ranges dominate the area and are 
underlain by folded Devonian to Permian age strata.  The 
intervening valleys are occupied by synclines that preserve
Cretaceous strata.  The box-type Kotaneelee and La Biche 
anticlines are both west-verging structures with steep-to-
overturned western limbs.  The La Biche anticline is further 
modified by a northeast verging thrust fault exposed in the 
core of the structure.  Diverging structural trends can be 
seen between the north-trending Kotaneelee anticline and the 
northwest-trending La Biche structure, reflecting a broader 
interference pattern in the La Biche River (NTS 95C) map area.  
The map pattern is also modified by the sub-Cretaceous 
unconformity that cuts out Permian strata towards the north 
end of the map area.