Geology of the Skeena Group, central British
Columbia
(NTS 093E,F,K,L,M; 103I,P)
BCMEMPR Open File
2007-08
Compilation by Dani J. Alldrick
Cartography by Chan-Yi M. Lin
View
Open File 2007-8
Map (PDF, 21.2 MB)
Download
OF2007-8-Skeena Map (ZIP,
21 MB; MANIFOLD GIS digital file)
Download
OF2007-8-Skeena Map
with RGS Data (ZIP,
21.5 MB; MANIFOLD GIS digital file)
Download
Complete
Project Package (ZIP, 127 MB)
The
Skeena Group map area covers 75,000 square kilometres in central British
Columbia. Open File 2007-8 is a 1:250 000-scale geological map based on
fieldwork conducted during 2006, combined with compilation from earlier
regional mapping programs. The map highlights areas underlain by
sedimentary, volcanic and volcaniclastic rocks of the early to middle
Cretaceous Skeena Group.
This
volcano-sedimentary succession hosts a major precious metal deposit at the
past-producing Equity Silver mine (see Open
File 2007-9) within the Mount Ney intermediate volcanics, a series of
gold prospects associated with the Kitseguecla Lake Rhyolites, and the
important coal deposits of the Telkwa mining district hosted in mudstone
members of the Bulkley Canyon Formation sandstones and conglomerates.
Field
and laboratory studies indicate that all these deposits are contemporaneous
with their hostrock successions. Regionally extensive correlative strata
delineated on this map have been only partially explored for similar
deposits.
This
geology map is available in PDF format for printing. The digital files
include the map in GIS format (Manifold GIS) and a second version of the GIS
map containing 96 georeferenced files of anomalous RGS samples suites for
Cu, Pb, Zn, Ag, Au, Hg, Sb, As. The zipped file also includes complementary
report, poster and lecture files, plus a comprehensive bibliography of
reports and maps on the Skeena Group.
