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Occurrence Details


Occurrence Number
105J 011
Occurrence Name
Ivor
Occurrence Type
Hard-rock
Status
Prospect


General Information

Secondary Commodities: copper, gold, silver, zinc
Aliases: Beethoven
Deposit Type(s): Sediment hosted Sedimentary Exhalative Zn-Pb-Ag (Sedex)
Location(s): 62.973060 N, -130.849170 W
NTS Mapsheet(s): 105J15
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No

Capsule

Work History

Staked as Ivor cl 1-48 (Y14172) in Nov/67 by Atlas Exploration Ltd for the Hess Syndicate, a joint venture with Quebec Cartier Mining Company Ltd and Phillips Brothers (Canada) Ltd, following a reconnaissance stream sediment sampling program. Explored by geological mapping and grid soil sampling in 1968.
Viceroy Exploration (Canada) Inc staked Beethoven cl 1-96 (YB99893) 3 km to the southwest in Oct/97, after Hemlo Gold Mines Inc obtained favorable gold results from rock and soil sampling in 1996. Viceroy carried out geological mapping and geochemical (silt, soil and rock) sampling in 1998.
In Mar/99, NovaGold Resources Inc acquired 100% of Viceroy's interest in this and 21 other grassroots properties in the Yukon in exchange for 3.4 million common shares. Later in 1999, NovaGold carried out geological mapping and geochemical (silt, soil and rock) sampling across the central and eastern portions of the property.

Capsule Geology

The Ivor claims were staked in an area of high zinc stream sediment values. Host rocks are cherty shale and slate of the Devonian to Mississippian Earn Group Prevost Formation about 3 km east of a small mid-Cretaceous quartz-biotite monzonite stock of the Tombstone Intrusive suite. Three zinc soil anomalies were found, the largest of which had peak values of 4 600 ppm and covered an area 1 100 m long and 120 m to 300 m wide. Lead and copper values are erratic. Rusty weathering black chert with small quartz veinlets returned rock geochemical values in the 1 200 ppm zinc range and probably explain the soil response. No mineralization was found in spite of fairly abundant outcrop.
The Beethoven claims are underlain by Ordovician to Silurian Road River Group sediments consisting of shales, cherts and siltstones that have been intruded by the above mentioned stock. Moderate to strong argillic alteration is present, particularily along the southern margins of the stock. Propyllitic alteration and hornfelsing, with resultant limonitic stain, has occurred in the sediments near the stock. Sampling during 1998 and 1999 indicated that most auriferous mineralization occurs within argillically altered marginal portions of the stock and the adjacent country rock, with widespread, narrow gold bearing arsenopyrite veins and vein breccias occuring up to 300 m from the stock. Grab sampling returned peak values for altered intrusive up to 300 ppb Au, 6.6 g/t Ag, 0.14% Pb, 518 ppm Zn, 0.24% As and 79 ppm Sb; for mineralized country rock up to 570 ppb Au, 128.7 g/t Ag, 557 ppm Cu, 1.71% Pb, 524 ppm Zn, 4.03% As, 0.26% Sb and 82 ppm Bi; and for veins and vein breccias up to 6.8 g/t Au was returned.

References

ATLAS EXPLORATION LTD, Dec/67. Assessment Report #018947 by C.L Smith.

ATLAS EXPLORATION LTD, Oct/68. Assessment Report #018948 by T.J. Adamson.

NOVAGOLD RESOURCES INC, Mar/2000. Assessment Report #094099 by C.M. Schulze.

VICEROY EXPLORATION (CANADA) INC, Mar/99. Assessment Report #093969 by C.M. Schulze.

YUKON EXPLORATION AND GEOLOGY 1999, p. 11.

Location Map

Last Updated: Sep 15, 2011

Work History

Year Work Type Comment
1998 Geology: Bedrock Mapping
1998 Other
1996 Other
1968 Geochemistry: Soil
1968 Geology: Bedrock Mapping
1967 Geochemistry: Silt Reconnaissance stream sampling.

Regional Geology - Terrane

Group: Ancestral North America
Affinity: W Laurentia
Name: North America - basinal strata
Realm: Laurentia


Regional Geology - Bedrock

Supergroup:
Group/Suite: Earn
Formation: Portrait Lake/Prevost
Member:
Terrane: Laurentia
Period Max: Devonian
Age Max: 385 MA
Period Min: Carboniferous
Age Min: 345 MA
Rock Major: siltstone/sandstone/conglo
Rock Minor: barite/limestone
Reference: Cecile & Abbott (1989) - GSC OF 2076
Geological Unit (1M): DME
Geological Unit (250K): DME1

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
095843 2011 Assessment Report 2011 Exploration Program Gamma-Ray Spectrometry - Airborne Geophysics, Magnetic - Airborne Geophysics, Soil - Geochemistry, Bedrock Mapping - Geology
018948 1968 Ivor Mineral Claim Group Report on Geological and Geochemical Work Done During 1968 Field Season Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Line Cutting - Other
018941 1968 Hess Project Report 1968 Laforce Lake - Mount Selous Area Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Regional Bedrock Mapping - Geology, Prospecting - Other
019809 1968 Hess Area Project Proposed Property Follow-Up 1968 Field Season Research/Summarize - Pre-existing Data
018947 1967 Hess River Project Report Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology
019032 1967 Hess River Project Report Data Compilation - Pre-existing Data

Related References

Number Title Page(s) Document Type
ARMC016696 Geochemical results and claim group map of sheet 105J/15 Geoscience Map (General)
ARMC016325 Geochemical results and claim group map of sheet 105J/15 - Ross River Geochemical Map
ARMC016700 Geochemical results map - 105J/15 Geochemical Map
ARMC016699 Geochemical sample stations map - 105J/15 Geochemical Map
ARMC016701 Geochem samples location map - 105J/15 - Showing Ivor group Geochemical Map
ARMC016697 Geochem samples map - 105J/15 - MacMillan project Geochemical Map
ARMC016698 Geochem samples map - 105J/15 - Showing Ivor group Geochemical Map
Citations

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