Horn River Formation
The Horn River Formation (also Horn River Shale) is a stratigraphic unit of Devonian (early Givetian to late Frasnian) age in the Western Canadian Sedimentary Basin.
| Horn River Formation | |
|---|---|
| Stratigraphic range: | |
Drill cuttings sample seen through microscope | |
| Type | Geological formation |
| Sub-units | Muskwa Member, Otter Park Member, Evie Member |
| Underlies | Fort Simpson Formation |
| Overlies | Pine Point Formation |
| Thickness | up to 320 metres (1,050 ft) |
| Lithology | |
| Primary | Shale |
| Other | Limestone |
| Location | |
| Coordinates | 61.73333°N 117.75000°W |
| Region | British Columbia, Northwest Territories |
| Country | Canada |
| Type section | |
| Named for | Horn River |
| Named by | Whittaker, 1922 |
Horn River Formation (Canada) | |
It is a thick sequence of marine sediments that was first described in outcrop on the banks of the Horn River, a tributary of the Mackenzie River, in the Northwest Territories (at the time District of Mackenzie) by Whittaker in 1922, and it takes its name from that river. In 1963 it was redefined in the subsurface of the Fort Nelson area of British Columbia (well Fort Nelson a-95-J/94-J-10) by F.F. Gray and J.R. Kassube. It is significant for its shale gas resources.
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