Geology of the Whitehorse Coal Deposit
Anthracite in floodplain deposits of the Cretaceous Tantalus Formation is preserved in a west-trending graben on the south side of Mt. Granger, 24 km southwest of Whitehorse. The graben extends from Fish Lake to Double Mountain, a distance of 20 km. Two main seams are exposed by bulldozer trenches across the central part of the Mt. Granger property. The upper seam is about 1.8 m thick at surface and has been traced almost continuously over a strike length of 2 km. The lower seam is at least 3.3 m thick at surface and can be traced for more than 1 km. The seams dip at about 30 to 50 degrees to the north. Rotary drilling in 1985 on the central showing penetrated up to 22.25 m of coal. The best continuous coal intersection was 13.1 m in WC-85-6. Open pittable reserves were calculated at 180,033 tonnes over a 335 m strike length. Six days of mapping in 1987 confirmed the continuity of the two main coal seams which are deformed by open north-plunging folds. A north-trending fault along Fisher Creek cuts off massive conglomerate channel deposits interbedded with the coal in the main showing area against recessive floodplain deposits to the west where up to five coal-bearing horizons occur in a thick shale sequence. Additional reserves may lie beneath the low-lying overburden-covered area west of the Fisher Creek fault.
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Additional Info
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| Last Updated | October 20, 2025, 02:22 (UTC) |
| Created | October 20, 2025, 02:22 (UTC) |
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Domain / Topic
Domain or topic of the dataset being cataloged.
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Title
Title for the Dataset.
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Geology of the Whitehorse Coal Deposit |
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Description
A description of the dataset.
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Anthracite in floodplain deposits of the Cretaceous Tantalus Formation is preserved in a west-trending graben on the south side of Mt. Granger, 24 km southwest of Whitehorse. The graben extends from Fish Lake to Double Mountain, a distance of 20 km. Two main seams are exposed by bulldozer trenches across the central part of the Mt. Granger property. The upper seam is about 1.8 m thick at surface and has been traced almost continuously over a strike length of 2 km. The lower seam is at least 3.3 m thick at surface and can be traced for more than 1 km. The seams dip at about 30 to 50 degrees to the north. Rotary drilling in 1985 on the central showing penetrated up to 22.25 m of coal. The best continuous coal intersection was 13.1 m in WC-85-6. Open pittable reserves were calculated at 180,033 tonnes over a 335 m strike length. Six days of mapping in 1987 confirmed the continuity of the two main coal seams which are deformed by open north-plunging folds. A north-trending fault along Fisher Creek cuts off massive conglomerate channel deposits interbedded with the coal in the main showing area against recessive floodplain deposits to the west where up to five coal-bearing horizons occur in a thick shale sequence. Additional reserves may lie beneath the low-lying overburden-covered area west of the Fisher Creek fault. |
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Format (CSV, XLS, TXT, PDF, etc)
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Dataset Size
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Metadata Identifier
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Published Date
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2011-04-04 |
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Time Period Data Span (start date)
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Time Period Data Span (end date)
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GeoSpatial Area Data Span
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Access category
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License
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Open Government Licence - Yukon |
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Location
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https://open.canada.ca/data/en/dataset/55ad139a-2131-49e1-a0c2-4a2ff0090902 |
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Data Service
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Owner
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Government of Yukon | Gouvernement du Yukon |
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Contact Point
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Yukon Geological Survey |
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Contact Point Email
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Publisher
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Publisher Email
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[email protected] |
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Author Email
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Accessed At
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Identifier
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Contains data about individuals
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Contains data about identifiable individuals
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Contains Indigenous Data
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Portal Type
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Version
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None |
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Source
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None |
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Version notes
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Provenance Text
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GeoSpatial resolution in meters
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GeoSpatial resolution (in regions)
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Indigenous Community Permission
Who holds the Indigenous Community Permission. Who to contact regarding access to a dataset that has data about Indigenous communities.
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Community Permission
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The Indigenous communities the dataset is about
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Number of data rows
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Data quality
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Metric for data quality
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