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Yukon Geological Survey

Occurrence Details


Occurrence Number
117A 022
Occurrence Name
Annett
Occurrence Type
Hard-rock
Status
Showing


General Information

Secondary Commodities: coal
Deposit Type(s): Coal
Location(s): 68.609720 N, -137.9625 W
NTS Mapsheet(s): 117A10
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No

Capsule

Work History

Staked as Annett cl (79050) in Oct/61 by W. Strong and K. Gardlund. This target lies within a large area withdrawn from staking in Jul/78 pending creation of a National Wilderness Park, settlement of native land claims and development of a management plan for the Porcupine Caribou Herd. The coal occurrence was reported by the GSC in 1985.

Capsule Geology

The claims are underlain by Lower Cretaceous shale and sandstone and may have been located here incorrectly because of the creek name while attempting to stake the Hoidahl (117A 020) occurrence. The coal occurs in thin seams within the Lower Cretaceous strata and is low volatile bituminous to semi-anthracite in rank. Analyses contain about 2% moisture, 9.5 to 14% volatiles, 2% ash and 82 to 86.4% fixed carbon, with calorific values of 14 270 to 14 380 BTU/lb.
 

Location Map

Last Updated: Mar 20, 2019

Work History

Year Work Type Comment
1961 Other: Prospecting Claim staked and prospected.

Regional Geology - Terrane

Group: Northern Alaska
Affinity: N Laurentia
Name: Arctic Alaska (North Slope)
Realm: Arctic


Regional Geology - Bedrock

Supergroup:
Group/Suite:
Formation:
Member:
Terrane:
Period Max: Cretaceous
Age Max: 125 MA
Period Min: Cretaceous
Age Min: 100 MA
Rock Major: shale/sandstone/conglo
Rock Minor:
Reference: Norris (1981) - GSC Map 1516A
Geological Unit (1M): KS
Geological Unit (250K): KS4

Related References

Number Title Page(s) Document Type
YCI1994 Yukon Coal Inventory Report
Citations
Cameron, A.R., Norris, D.K. and Pratt, K.C., 1986. Rank and other compositional data on coals and carbonaceous shale of the Kayak Formation, northern Yukon Territory. In: Current Research, Part B., Geological Survey of Canada, Paper 86-1B, p. 665-670.
Norris, D.K., 1980. Geology, northern Yukon Territory and northwestern District of Mackenzie. Geological Survey of Canada, Open File 715.
Ricketts, B.D., 1985. A coal index of Yukon and District of Mackenzie, NWT. Geological Survey of Canada, Open File 1115.

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