The Yreka copper property is situated on the
west side of Neroutsos Inlet about nine miles northwest
of Port Alice In the northern part of Vaneouver Island,
British Columbia. The property is underlain by rooks of
the Vancouver Group, including greenstones, limestones,
breccias and tuffs striking approximately northwest and
dipping southwest into the mountainside at about 35 degrees.
They, are intruded by dykes and sills of quartz-feldspar
porphyry, quarts diorite and basalt.
The mineral deposits are located in large bodies
of skarn which have been formed in the tuffaceous rocks of
the middle part of the sequence. The skarn zones consist
roughly of three subparallel units which appear to conform
approximately with the bedding. The largest of these
skarn zones is about 1500 feet long and more than 100 feet
wide, and contains sulphide bodies of economic interest.
Other sulphide showings have been found on the property but
do not appear to be of economic significance. The skarn
zones are of pyrometasomatic origin of the type not related
to an igneous contact.
Development work in the early part of the century
included stripping and trenching, driving a number of adits
in various places in the skarn zones, and mining of a small
tonnage of ore. Recent work, consisting of mapping, sampling and diamond drilling, has shown the property to
be a prospect of considerable merit. / Arts, Faculty of / Geography, Department of / Graduate
| Identifer | oai:union.ndltd.org:UBC/oai:circle.library.ubc.ca:2429/41595 |
| Date | January 1955 |
| Creators | Wilson, Philip Roy |
| Publisher | University of British Columbia |
| Source Sets | University of British Columbia |
| Language | English |
| Detected Language | English |
| Type | Text, Thesis/Dissertation |
| Rights | For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. |
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