General Information
Secondary Commodities: copper, gold
Deposit Type(s): Vein Cu+/-Ag Quartz
Location(s): 63.285560 N, -132.991940 W
NTS Mapsheet(s): 105N07
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Located, but not staked, by Atlas Explorations Ltd for the Hess Project (Atlas Explorations Ltd, Quebec Cartier Mining Company, and Phillip Brothers (Canada) Ltd) in 1967. The joint venture carried out prospecting and geochemical sampling in 1968. Viceroy Exploration (Canada) Inc staked Sass cl 1-12 (YC01282) 1 km to the east in Aug/98 and carried out rock geochemical sampling.
In Mar/99, NovaGold Resources Inc acquired 100% of Viceroy's interest in the Sass claims and 21 other grassroots properties in the Yukon in exchange for 3.4 million common shares. Later in 1999, NovaGold carried out geological mapping, prospecting and rock geochemical sampling.
Capsule Geology
Minor chalcopyrite is associated with pyrrhotite in narrow quartz-filled shear zones cutting Proterozoic Hyland Group calcareous quartzite. East-west oriented porphyritic quartz dykes intrude Hyland Group phyllite, sandstone and siltstone further to the east, in an area with abundant limonitic staining and gossanous occurrences. The dykes are associated with a large mid-Cretaceous Tombstone Suite quartz-biotite monzonite stock that has intruded 3.5 km to the east of the occurrence.
Calc-silicate skarn, consisting of pods of pyrrhotite and chalcopyrite and quartz-arsenopyrite vein breccias have been identified on the Sass claims. A 4.5 m chip sample of mineralized skarn, taken from the central part of former claim group returned values to 1.57 g/t Au, grab samples of other showings 500 m to the northwest and 1 km to the west returned 300 ppb Au and 1.29 g/t Au, respectively. Anomalous levels of bismuth and antimony are also associated with the showings. Quartz-arsenopyrite float located near the intrusive stock returned values to 2 000 ppb Au.
References
HESS PROJECT, Jan/69. Assessment Report #019033 by M.E. Coates.
NOVAGOLD RESOURCES INC, Feb/2000. Assessment Report #094087 by G. Johnson and C. Schulze.
ROOTS, C.F., ABBOTT, G., CECILE, M. AND GORDY, S., 1995. Bedrock Geology of Lasing Range Map Area (105N), East Half, Hess Mountains, Yukon. Indian and Northern Affairs Canada, Exploration and Geological Services Division, Yukon Region. Open File 1995-7 (G).
YUKON EXPLORATION AND GEOLOGY 1999, p. 11-12.
Located, but not staked, by Atlas Explorations Ltd for the Hess Project (Atlas Explorations Ltd, Quebec Cartier Mining Company, and Phillip Brothers (Canada) Ltd) in 1967. The joint venture carried out prospecting and geochemical sampling in 1968. Viceroy Exploration (Canada) Inc staked Sass cl 1-12 (YC01282) 1 km to the east in Aug/98 and carried out rock geochemical sampling.
In Mar/99, NovaGold Resources Inc acquired 100% of Viceroy's interest in the Sass claims and 21 other grassroots properties in the Yukon in exchange for 3.4 million common shares. Later in 1999, NovaGold carried out geological mapping, prospecting and rock geochemical sampling.
Capsule Geology
Minor chalcopyrite is associated with pyrrhotite in narrow quartz-filled shear zones cutting Proterozoic Hyland Group calcareous quartzite. East-west oriented porphyritic quartz dykes intrude Hyland Group phyllite, sandstone and siltstone further to the east, in an area with abundant limonitic staining and gossanous occurrences. The dykes are associated with a large mid-Cretaceous Tombstone Suite quartz-biotite monzonite stock that has intruded 3.5 km to the east of the occurrence.
Calc-silicate skarn, consisting of pods of pyrrhotite and chalcopyrite and quartz-arsenopyrite vein breccias have been identified on the Sass claims. A 4.5 m chip sample of mineralized skarn, taken from the central part of former claim group returned values to 1.57 g/t Au, grab samples of other showings 500 m to the northwest and 1 km to the west returned 300 ppb Au and 1.29 g/t Au, respectively. Anomalous levels of bismuth and antimony are also associated with the showings. Quartz-arsenopyrite float located near the intrusive stock returned values to 2 000 ppb Au.
References
HESS PROJECT, Jan/69. Assessment Report #019033 by M.E. Coates.
NOVAGOLD RESOURCES INC, Feb/2000. Assessment Report #094087 by G. Johnson and C. Schulze.
ROOTS, C.F., ABBOTT, G., CECILE, M. AND GORDY, S., 1995. Bedrock Geology of Lasing Range Map Area (105N), East Half, Hess Mountains, Yukon. Indian and Northern Affairs Canada, Exploration and Geological Services Division, Yukon Region. Open File 1995-7 (G).
YUKON EXPLORATION AND GEOLOGY 1999, p. 11-12.
Location Map
Last Updated: Sep 15, 2011
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1999 | Geology: Bedrock Mapping | |
| 1999 | Other | |
| 1999 | Other | |
| 1998 | Other | |
| 1968 | Other | |
| 1968 | Other |
Regional Geology - Terrane
Group: Ancestral North America
Affinity: W Laurentia
Name: North America - basinal strata
Realm: Laurentia
Regional Geology - Bedrock
Supergroup: Windermere
Group/Suite: Hyland
Formation: Yusezyu
Member:
Terrane: Laurentia
Period Max: Ediacaran
Age Max: 635 MA
Period Min: Ediacaran
Age Min: 542 MA
Rock Major: phyllite/shale/sandstone/grit/conglomerate
Rock Minor: limestone/marble
Reference: Roots (2003) - YGS GM 2003-1; GSC OF 1616
Geological Unit (1M): PCH
Geological Unit (250K): PCH6
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 097116 | 2017 | 2017 Diamond Drilling, Structural and Geological Mapping, Airborne Magnetic & Radiotmetric Survey, Airborne EM Survey, LiDAR Durvey, and Group Geophysics (IP, Gravity, EM) on the Plateau Property | Electromagnetic - Airborne Geophysics, Magnetic - Airborne Geophysics, Bedrock Mapping - Geology, EM - Ground Geophysics, Gravity Survey - Ground Geophysics, IP - Ground Geophysics, LIDAR - Remote Sensing | ||
| 094087 | 1999 | 1999 Geological and Geochemical Assessment Report on the Sass Property | Rock - Geochemistry, Detailed Bedrock Mapping - Geology, Prospecting - Other | ||
| 019809 | 1968 | Hess Area Project Proposed Property Follow-Up 1968 Field Season | Research/Summarize - Pre-existing Data | ||
| 019033 | 1968 | Atlas Explorations Limited Project Report 1968 Hess River Area | Silt - Geochemistry, Soil - Geochemistry, Regional Bedrock Mapping - Geology | ||
| 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 |
|---|---|---|---|
| ARMC010372 | Geochemical results and claim group map of Vole Creek area - Hess project | Geochemical Map | |
| ARMC008032 | Geology map for 105N-5 & 6 - Hess claim group | Geoscience Map (Geological - Bedrock) | |
| ARMC008034 | Regional geology map - Hess project | Geoscience Map (General) | |
| ARMC008149 | Topographic map of 105N-7 showing geochemical sampling results - Hess River area | Geochemical Map | |
| ARMC008150 | Geochemical results and claim group map of sheet 105N-7 - Ross River | Geochemical Map | |
| ARMC016483 | Aeromagnetic series map of 105N/6 with notations | Geophysical Map | |
| ARMC011776 | Geological map of Vole Creek area - Hess project | Geoscience Map (Geological - Bedrock) | |
| ARMC016482 | Geological overlay map - 105N/6 | Geoscience Map (Geological - Bedrock) | |
| ARMC016484 | Geological overlay map - 105N/7 | Geoscience Map (Geological - Bedrock) | |
| ARMC018057 | Air photo overlays - 105N/6 with stream sediment data sheets - A12328-72, 71, A12203-441, A12260-48, A12328-216, 79 | Geoscience Map (General) | |
| ARMC018059 | Air photo overlays - 105N/6 with stream sediment data sheets - A12203-440, 439, A12245-115, A12339-315, 326, 312, 324, 169, A12245-113 | Geoscience Map (General) | |
| ARMC018060 | Report on anomalies #34 and #36 - 105N/6 - Hess River area | Report | |
| ARMC018061 | Hess River area - Roman Creek - Notes, silt-soil chart sketch map and geochemical work sheets | Miscellaneous Company Documents | |
| ARMC018062 | Geochemical map of 105N/7 | Geochemical Map | |
| ARMC018063 | Geochemical map of 105N/7 | Geochemical Map | |
| ARMC018065 | Geology map - 105N/7 | Geoscience Map (Geological - Bedrock) | |
| ARMC018066 | Overlay of map 105N/7 with notations | Geoscience Map (General) | |
| ARMC018067 | Geology map - 105N/7 | Geoscience Map (Geological - Bedrock) | |
| ARMC018068 | Geological field map of 105N/7 | Geoscience Map (Geological - Bedrock) |
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