British Columbia Ministry of Energy, Mines and Natural Gas and Responsible for Housing
News | The Premier Online | Ministries & Organizations | Job Opportunities | Main Index

MINFILE Home page  ARIS Home page  MINFILE Search page  Property File Search
Help Help
File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  30-May-2022 by Karl A. Flower (KAF)

Summary Help Help

NMI 092L2 Au22
Name BODEN, BODIN Mining Division Alberni
BCGS Map 092L006
Status Showing NTS Map 092L02W
Latitude 050º 02' 10'' UTM 09 (NAD 83)
Longitude 126º 50' 40'' Northing 5544872
Easting 654360
Commodities Gold, Zinc Deposit Types I06 : Cu+/-Ag quartz veins
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Boden occurrence lies in the Zeballos gold camp, an area underlain by Lower Jurassic Bonanza Group basaltic to rhyolitic volcanic rocks. Conformably underlying the Bonanza rocks are lime- stones and limy clastics of the Upper Triassic Vancouver Group, Quatsino Formation. Dioritic to granodioritic Jurassic plutons of the Zeballos intrusion phase of the Island Plutonic Suite have intruded all older rocks. The Eocene Zeballos stock, a quartz diorite phase of the Catface Intrusions, is spatially related to gold-quartz veining in the area. Bedded rocks are predominantly northwest striking, southwest dipping, and anticlinally folded about a north- west axis.

The Boden occurrence consists of several showings, extending from and elevation of 335 metres to the northwest along a fork in Maguinna Creek, and up to 640 metres elevation over a summit.

The location given by Stevenson (1938, Index Map) places the occurrence at a considerable distance from that given in his 1950 description (Bulletin 27, page 119), the more recent location is adhered to.

The Number One showing, at elevation 335 metres, consists of a 15 to 60 centimetre wide west striking, near vertical shear zone comprised of crushed rock, gouge and coarse calcite lenses. Disseminated fine-grained pyrite, arsenopyrite and sphalerite are present. A sample assayed 3.4 grams per tonne gold (Bulletin 27, page 120). The shear zone here lies in Bonanza Group greenstone, 6 metres from a Jurassic(?) granodiorite contact.

At an elevation of 457 metres and traceable to 579 metres, the same shear zone lies in a contact phase of greenstone. Locally, pyrrhotite patches are present in siliceous layers up to 15 centimetres in width.

The Number Two showing lies to the northwest at an elevation of 640 metres, over a 700 metre divide. The zone is in silicified and carbonate altered greenstone near an 080-degree striking 2.5 metre diabase dyke. It consists of a 1.2 metre wide west striking shear that has been traced over 46 metres. The shear contains lenses of white calcite and 1 to 5 centimetre wide quartz ribs, with traces of pyrite and sphalerite. Assays returned only traces of gold (Bulletin 27, page 120).

In 1999, Zeb Oro Explorations Inc. prospected the area as the Zeb Oro property. In 2014, the area was prospected as the Zeballos Vancouver Island property.

Bibliography
EMPR ASS RPT 26083, 34992
EMPR BULL 20-V, p. 16; *27, p. 119
EMPR FIELDWORK 1982, p. 290; 1983, p. 219
GSC EC GEOL 1-1947
GSC MAP 4-1974; 255A; 1028A; 1552A
GSC MEM 204; 272, p. 60
GSC OF 9; 170; 463
GSC P 38-5; 40-12; 69-1A; 70-1A; 72-44; 74-8; 79-30
GSC SUM RPT 1929A; 1932A
CIM Trans. Vol. 42, 1939, pp. 225-237; 1948, pp. 78-85; 72, pp. 116-125
N MINER Apr. 1938, pp. 39-45
Carson, D.J.T., (1968): Metallogenic Study of Vancouver Island with emphasis on the Relationship of Plutonic Rocks to Mineral Deposits, Ph.D. Thesis, Carleton University, Ottawa
Stevenson, J.S., (1938): Lode Gold Deposits of the Zeballos Area

COPYRIGHT | DISCLAIMER | PRIVACY | ACCESSIBILITY