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Occurrence Details


Occurrence Number
105F 073
Occurrence Name
Bnob
Occurrence Type
Hard-rock
Status
Prospect


General Information

Secondary Commodities: barite, copper, zinc, silver, lead
Aliases: Ice
Deposit Type(s): Volcanogenic Massive Sulphide (VMS) Kuroko Cu-Pb-Zn
Location(s): 61.574170 N, -132.535560 W
NTS Mapsheet(s): 105F10
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No

Capsule

Work History

Staked as Bnob cl 1-16 (YA258) in Jul/76 by a joint venture between Cyprus Anvil Mining Corporation and Hudson's Bay Oil & Gas Ltd, which carried out grid soil sampling and prospecting in 1976. The partners added Bnob 17-24 (YA11088) in Sep/76 and carried out geological mapping, magnetic and EM surveying in 1977 and drilled one hole (258.5 m) in 1980
Restaked within Ram cl 1-730 (YA71576) in Sep/84 by Regional Resources Ltd, which carried out an extensive program of mapping, geochemical and geophysical surveys in 1985 and transferred its interests to Fairfield Minerals Ltd in 1986. Fairfield added RAM cl 759-796 (YA01904) in Sep/87 and explored them with grid soil sampling in 1988. Pacific Comox Resources Ltd acquired a 100% working interest in the Ram claims in Jan/93.
Restaked as Ice cl 1-6 (YB74423) by Eagle Plains Resources Ltd in Feb/96 which carried out geological mapping, hand trenching and sampling in 1996 and 97. The company added Ice cl 7-8 (YB84555) in Jun/96, cl 9-10 (YB87288) in Aug/96 and Ice cl 11-18 (YB89927) in Sep/97.
Atna Resources Ltd optioned the property in Oct/97 and carried out geological mapping, grid soil sampling and EM surveying in 1998, before dropping the option.
Eagle Plains carried out prospecting, mapping and geochemistry in 1999 and drilled a single hole (107 m) in 2000. In Sep/2000 the company covered the open ground located between this occurrence and Minfile Occurrence #105F 071(located 7.5 km to the northeast), with Ice cl 19-104 (YB92850), Ash cl 1-20 (YB92830), Eva cl 1-28 (YB93567) and Cole cl 1-30 (YB93030).
In 2001 the company carried out extensive geological mapping, silt and soil sampling programs over the enlarged claim block. The company continued their exploration work in 2002 and collected In Sep/2000 the company covered the open ground located between this occurrence and Minfile Occurrence #105F 071(located 7.5 km to the northeast), with Ice cl 19-104 (YB92850), Ash cl 1-20 (YB92830), Eva cl 1-28 (YB93567) and Cole cl 1-30 (YB93030).
In 2001 the company carried out extensive geological mapping, silt and soil sampling programs over the enlarged claim block. The company continued their exploration work in 2002 and began archiving all previously collected data using a Geographic Information System.

Capsule Geology

The area is located southwest of the Tintina Fault on the Cassiar Platform. The Cassiar Platform is a curvilinear shelf that formed, between mid-Cambrian and Silurian time, roughly parallel to the western margin of the North American craton but separated from it by the Selwyn Basin. Shallow water deposition on the Cassiar Platform continued until Late Devonian time. Block faulting and local uplift during Late Devonian and Mississippian resulted in deposition of carbonaceous shale and chert pebble conglomerate in the Selwyn Basin and across the platform. Local explosive volcanism produced thick tuff and flows whose extremities intertongue with surrounding black shale. Some of these centres contain base metal mineralization. Calcareous argillite of Upper Paleozoic to Triassic age was deposited above the shale and volcanic sequence (Hunt, 1999).
The occurrence is located at the northwest end of the Pelly Mountains volcanic belt, an arcuate belt approximately 80 km long and up to 25 km wide that forms part of the Cassiar Platform. The belt is comprised of localized volcanic centers separated by basins in-filled with sediments and volcaniclastic rocks. The present deformed thickness of the volcanic section is highly variable, ranging from less than 100 m to as much as 1 700 m. Associated with these volcanic rocks are at least two volcanogenic massive sulphide (VMS) deposits, the Wolf (Minfile Occurrence #105G 008) and MM (Minfile Occurrence #105F 012) and numerous other historical showings including Chzerpnough (Minfile Occurrence #105F 071) and the Bnob, this occurrence.
The volcanic rocks are predominantly felsic but in some areas significant accumulations of andesite to basalt occur. The most common feature of the belt are flows, epi-zonal sills, and small plugs of trachyte. The trachyte flows and/or sills are laterally very extensive, probably due to low magmatic viscosity caused in part by high alkali element content. Typically the trachyte contains significant amounts of pyrite which gives rise to extensive gossans. The trachytes are commonly cream colored, with fine to medium grained phenocrysts of feldspar and rare quartz and locally massive, amygdaloidal or brecciated. Syenite intrusions have been noted at a number of locations within the Pelly Mountains volcanic belt and are thought to represent volcanic feeders. Although these intrusions were originally thought to represent plugs recent diamond drilling suggests that they are really sills.
Exploration work carried out by Cyprus Anvil led to the discovery of the original Bnob occurrence. Cyprus described the occurrence as consisting of thin layers of pyrite and sparsely disseminated galena in a 9 m thick band of sugary white barite that outcrops over a length of 45 m and is traceable in talus for an additional 300 m. The barite layer forms part of a sequence of alkaline to peralkaline volcanic rocks of Mississippian age. The volcanic sequence is underlain by siliceous grey phyllite, and includes pyritic felsic tuff and lapilli tuff, and is overlain by a blocky felsic flow. The 1980 drill hole failed to intersect barite or volcanogenic massive sulphide mineralization and interpretation by later operators suggests the hole was collared stratigraphically below the mineralized barite horizon.
Regional Resources and Fairfield Minerals explored the occurrence in conjunction with a larger regional program, which examined all of the significant silver-gold-lead-zinc vein and replacement showing/deposits located in the region. A decline in metal prices in the late eighties curtailed exploration activities in the area.
Eagle Plains staked the occurrence for its VMS potential. The company sampled the existing occurrence and uncovered a second showing, (the Ice 1 zone) 1 km to the northeast. This zone consists of a 10 m stratigraphic thickness of massive, bedded barite containing large disseminations, blebs and stratiform bands of galena, with disseminated fine- to coarse-grained pyrite and disseminated sphalerite intergrown (?) with galena. Grab samples from both showings returned up to 55.6 g/t silver, 1.060 % copper, 9.53 % lead and 4.74% zinc.
Atna Resources carried out a detailed exploration program over the property. Grid and contour soil sampling outlined anomalous lead and zinc values near the Bnob and Ice 1 showings and a third area labeled the Gully zone. The source of the anomalous values from the Gully zone could not be determined due to limited outcrop exposure. A Max-Min HLEM geophysical survey outlined 4 bedrock conductors, 2 of which were considered to be significant. Atna felt the potential of the Bnob occurrence could be tested with a single drill hole but the company ultimately dropped its option and returned the property to Eagle Plains.
In 2000 following detailed geological mapping, Eagle Plains collared a single drill hole (107 m) on the Bnob occurrence. The hole intersected a thick exhalite bedded barite horizon, containing numerous sulphide horizons over an approximate true thickness of 48.4 m from a depth of 30.2 m to 78.6 m. The best mineralized interval within the barite was found from 56.7 m to 58.0 m which returned 5.64% zinc, 0.17% lead and 12.3 g/t silver. Overall, the entire barite interval averaged 8.9 g/t silver, 5 019 ppm zinc and 1 659 ppm lead over its 48.4 m thickness.
The 2001 exploration program was the first of a two year program geared towards geochemically sampling newly staked areas, much of which had never been sampled by Eagle Plains. The 2002 program followed up on areas of interest identified the previous year. The final results identified 4 principal areas of interest, of which one area, the McConnell River area, is located south of this occurrence. Three soil sample lines outlined anomalous lead and zinc values over a large area, including line FL7 which returned 883.5 ppm lead and 3 795 ppm zinc over 175 m with associated anomalous silver, gold, antimony and cadmium values and line F8 which returned 249 ppm lead and 1 733 ppm zinc over 100 m with associated anomalous cadmium and silver values. In addition the archiving of all geochemical results into a Geographic Information System, enabled the company to improve their understanding of the various stratigraphic relationships present on the property.

References

ATNA RESOURCES LTD, Mar/99. Assessment Report #093958 by R. Wilson and P. Holbek.

CYPRUS ANVIL MINING CORPORATION, Jan/77. Assessment Report #090174 by P. Dean.

CYPRUS ANVIL MINING CORPORATION, Aug/77. Assessment Report #090193 by P. Dean.

ECONOMIC GEOLOGY, Aug/82. p. 1225-1230.

EAGLE PLAINS RESOURCES LTD, Mar/97. Assessment Report #093608 by J.R. Dickie.

EAGLE PLAINS RESOURCES LTD, Sep/97. Assessment Report #093793 by B. Kreft

EAGLE PLAINS RESOURCES LTD, Feb/2001. Assessment Report #094200 by C.C. Downie.

EAGLE PLAINS RESOURCES LTD, Dec/2001. Assessment Report #094267 by C.C. Downie.

EAGLE PLAINS RESOURCES LTD, Nov/2002. Assessment Report #094392 by C.C. Downie and C. Gallagher.

EAGLE PLAINS RESOURCES LTD, News Release, 14 Jun/2001, 30 Aug/2000, 11 Sep/2000.

EAGLE PLAINS RESOURCES LTD, Aug/2004. Web Site: www.eagleplains.ca

FAIRFIELD MINERALS LTD, Sep/87. Assessment Report #092096 by J.J. Hylands.

FAIRFIELD MINERALS LTD, Nov/88. Assessment Report *#092604 by J.J. Hylands.

GEORGE CROSS NEWSLETTER, 18 Jan/93.

HUNT, J.A., 1999. Preliminary stratigraphy and distribution of Devono-Mississippian massive sulphide-bearing volcanic rocks in the Mount Vermillion area, Pelly Mountains (105G/5 and G/6), southeast Yukon. In: Yukon Exploration and Geology 1998, C.F. Roots and D.S. Emond (eds.), Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 73-89.

HUNT, J.A., 2002. Volcanic-associated massive sulphide (VMS) mineralization in the Yukon-Tanana Terrane and coeval strata of the North American miogeocline, in the Yukon and adjacent areas. Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, Bulletin 12, 107 p.

MINERAL INDUSTRY REPORT 1976, p. 194-195; 1977, p. 83.

NORTHER MINER, 218 Sep/95; 4 Jun/96; 30 Oct/2000.

REGIONAL RESOURCES LTD, Jan/86. Assessment Report #091768 by M.A. Stammers.

YUKON EXPLORATION 1985-86, p. 219-221.

YUKON EXPLORATION AND GEOLOGY 1996, p. 20, 30; 1997, p. 18-19, 35; 1998, p. 1999, p. 22; 2000, p. 9-11, 25, 27; 2001, p. 10-11, 24.

Location Map

Last Updated: Jul 30, 2018

Work History

Year Work Type Comment
2002 Pre-existing Data: Data Compilation Began archiving results in GIS system.
2002 Geology: Bedrock Mapping
2001 Geochemistry: Soil Also silt sampling. Work mainly carried out on newly staked areas.
2001 Geology: Bedrock Mapping Work mainly carried out on newly staked areas.
2000 Drilling: Diamond One hole, 107 m. Eagle Plains drilled single hole to test mineralized horizon.
1999 Geology: Bedrock Mapping
1999 Other: Prospecting
1998 Geochemistry: Soil
1998 Geology: Bedrock Mapping
1998 Ground Geophysics: EM HLEM survey.
1997 Geochemistry: Rock
1997 Geochemistry: Soil
1997 Geology: Bedrock Mapping
1997 Trenching: Hand
1996 Geochemistry: Rock
1996 Geochemistry: Soil
1996 Geology: Bedrock Mapping
1996 Trenching: Hand
1987 Geology: Bedrock Mapping
1987 Ground Geophysics: IP Also VLF-EM and magnetometer surveys.
1985 Geochemistry: Soil Also rock sampling.
1985 Geology: Bedrock Mapping
1980 Drilling: Diamond One hole, 258.47 m. Hole appears to have been drilled below mineralized horizon.
1977 Geology: Bedrock Mapping
1977 Ground Geophysics: EM Also magnetometer survey.
1976 Geochemistry: Soil
1976 Geology: Bedrock Mapping
1976 Other: Prospecting

Regional Geology - Terrane

Group: Ancestral North America
Affinity: W Laurentia
Name: Cassiar
Realm: Laurentia


Regional Geology - Bedrock

Supergroup:
Group/Suite: Earn
Formation:
Member:
Terrane: Cassiar
Period Max: Carboniferous
Age Max: 359 MA
Period Min: Carboniferous
Age Min: 345 MA
Rock Major: trachyte/andesite/flows/tuffs/dykes
Rock Minor: slate/limestone
Reference: Tempelman-Kluit (1977) - GSC OF 486
Geological Unit (1M): DMEC
Geological Unit (250K): DMEC3

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
096497 2013 Data Compilation and Geochemical Assessment Report for the Fire (Chzerpnough) and Ice (BNOB) Properties Data Compilation - Pre-existing Data, Digitizing Data - Pre-existing Data
094905 2007 2007 Geological and Geochemcial Assessment Report for the Fire (Chzerpnough), Ice (BNOB) and Melt Properties Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology
094779 2006 2006 Report for the Fire (Chzerpnough), Ice (BNOB) and Melt Properties Electromagnetic - Airborne Geophysics, Magnetic - Airborne Geophysics
094392 2002 Geological Report for the Fire (Chzerpnough), Ice (BNOB) and Melt Properties Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology
094267 2001 Geological Report for the Fire(Chzerpnough), Ice(Bnob) and Melt Properties Pelly Mountain Project Soil - Geochemistry, Prospecting - Other
094200 2000 Diamond Drilling Geological Report for the FIRE(Chzerpnough) and ICE(BNOB) Properties Diamond - Drilling, Soil - Geochemistry, Detailed Bedrock Mapping - Geology 7 616
093958 1998 1998 Project Report on the Ice Property Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics
093793 1997 Geological Assessment Report for the Bnob Mineral Property Rock - Geochemistry, Backhoe - Trenching
093608 1996 Geological Assessment Report for the Ice 1-6 Mineral Claims Rock - Geochemistry, Bedrock Mapping - Geology, Backhoe - Trenching
092980 1991 Dighem Magnetics/VLF Survey for Pacific Comox Resources Ltd. Electromagnetic - Airborne Geophysics
092096 1987 Geological, Geochemical & Geophysical Report on the Ram 1-178 & Mat 1-12 Mineral Claims Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics, IP - Ground Geophysics, Magnetics - Ground Geophysics
091768 1985 Geological and Geochemical Report on the Ram 1-758 Mineral Claims Soil - Geochemistry, Bedrock Mapping - Geology
090193 1977 Geological and Geophysical Report, BNOB Claim Group Bedrock Mapping - Geology, EM - Ground Geophysics, Magnetics - Ground Geophysics
090174 1977 Geochemical Report, BNOB Claim Group Soil - Geochemistry

Related References

Number Title Page(s) Document Type
ARMC002967 Grid map - Pelmac project - Bnob claims Geoscience Map (General)
ARMC002969 Claim map and proposed DDH site - Pelmac project - Bnob claims Geoscience Map (General)
ARMC009281 Geochemical coverage map - Bnob claims Geochemical Map
ARMC009282 Radem VLF E.M. profiles - Bnob claims - Figure 6b Geophysical Map
ARMC009283 Geology map - Bnob claims Geoscience Map (Geological - Bedrock)
ARMC008738 Certificate of Analysis - iPL 96F0523 - Fire and Ice claims Assays
ARMC008739 Correspondence Re: Eagle Plains Resources Fire and Ice claims Miscellaneous Company Documents
ARMC008740 News releases - Fire and Ice claims News Release
ARMC014318 Regional geology - Pelly Mountains - Pelmac project - Field work completed from July - September 1980 Report
ARMC014316 NTS sheet 105F - Quiet Lake with field notations Geoscience Map (General)
ARMC014427 1978 geological report on the Bnob claims - Field work done during the period July 31 to Aug 4, 1978 Report
ARMC014428 1980 drilling report - Bnob claim group - Field work completed from August 15 to 24, 1980 Report
ARMC014313 Pelly project summary report: 1978 - Watson Lake mining district, Yukon Territory - Field work done during the period: June 12 - August 30, 1978 Report
ARMC014233 Claims map drawn on NTS sheet 105F - Quiet Lake Geoscience Map (General)
ARMC014434 Drill core log and diamond drill record - Pelmac - Bnob claims - 80-B-01 Drill Logs
Citations

Drill Core at YGS Core Library

Number Property Year Drilled Core Size Photos Data
I00-01 Ice 2000 BTW 36 2
80-B-01 BNOB 1980 BQ 22 2

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