http://debianws.lexgopc.com/wiki143/index.php?action=history&feed=atom&title=Muskwa_FormationMuskwa Formation - Revision history2026-06-02T10:04:22ZRevision history for this page on the wikiMediaWiki 1.43.1http://debianws.lexgopc.com/wiki143/index.php?title=Muskwa_Formation&diff=7909062&oldid=previmported>Volcanoguy: removed Category:Shale formations using HotCat2025-05-25T23:40:23Z<p>removed <a href="/wiki143/index.php?title=Category:Shale_formations&action=edit&redlink=1" class="new" title="Category:Shale formations (page does not exist)">Category:Shale formations</a> using <a href="/wiki143/index.php?title=WP:HC&action=edit&redlink=1" class="new" title="WP:HC (page does not exist)">HotCat</a></p>
<p><b>New page</b></p><div>{{Infobox Rockunit<br />
| name = Muskwa Formation<br />
| image = <br />
| caption = <br />
| type = [[Geological formation]]<br />
| age = {{fossil range|Frasnian|Frasnian|[[Frasnian]]}}<br />
| period = Frasnian<br />
| prilithology = [[Shale]]<br />
| otherlithology = <br />
| namedfor = [[Muskwa River]]<br />
| namedby = Gray & Kassube<br />
| year_ts = 1963<br />
| region = [[British Columbia]]<br />
| country = [[Canada]]<br />
| coordinates = {{coord|58.7438|N|122.6781|W|name=Western National Gas Fort Nelson a-95-J/94-J-10|display=inline,title}} <br />
| unitof = [[Horn River Formation]]<br />
| subunits = <br />
| underlies = [[Fort Simpson Formation]]<br />
| overlies = [[Otter Park Member]]<br />
| thickness = up to {{convert|34|m|ft|-1}}<ref name=lexicon>{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:010444| title= Muskwa Formation|author=Lexicon of Canadian Geological Units|accessdate=2009-02-10}}</ref><br />
| extent = <br />
| area = <br />
| map = {{Location map+ | Canada<br />
| relief = 1<br />
| width = 300<br />
| float = center<br />
| places =<br />
{{Location map~ | Canada<br />
| lat_deg = 58.7<br />
| lon_deg = -122.6<br />
| mark = Gold pog.svg<br />
| marksize = 12<br />
}}<br />
}}<br />
| map_caption = <br />
}}<br />
The '''Muskwa Formation''' is a [[stratigraphic unit]] of [[Frasnian]] [[Geochronology|age]] in the [[Western Canadian Sedimentary Basin]]. <br />
<br />
It takes the name from [[Muskwa River]], and was first described in the Western National Gas Fort Nelson a-95-J/94-J-10 well by F.F. Gray and J.R. Kassube, in 1963.<br />
<br />
==Lithology==<br />
The Muskwa Formation is composed of [[bitumen|bituminous]] [[shale]]. [[Pyrite]] is a common accessory mineral.<br />
<br />
===Gas production===<br />
<br />
[[Natural gas|Gas]] is produced from the Muskwa Formation [[shale]]s in the Horn River Basin in the [[Greater Sierra (oil field)|Greater Sierra oil field]] in north-eastern [[British Columbia]]. [[Horizontal drilling]] and [[Hydraulic fracturing|fracturing]] techniques are used to extract the gas from the low [[Permeability (earth sciences)|permeability]] shales (see ''[[Shale gas]]'').<br />
<br />
==Distribution==<br />
The Muskwa Formation occurs in [[northern Alberta]], north-eastern [[British Columbia]] and in the southern part of the [[Northwest Territories]], and typically has a thickness of {{convert|34|m|ft|-1}}.<br />
<br />
==Relationship to other units==<br />
The Muskwa Formation is a sub-unit of the [[Horn River Formation]]; it is conformably overlain by the [[Fort Simpson Formation]] and conformably underlain by the [[Otter Park Member]].<br />
<br />
==See also==<br />
*[[Muskwa Ranges]]<br />
<br />
==References==<br />
{{reflist}}<br />
<br />
<br />
<br />
{{Western Canadian Sedimentary Basin|Fort_Nelson=yes}}<br />
{{Shale gas}}<br />
<br />
<br />
<br />
[[Category:Geologic formations of Alberta]]<br />
[[Category:Oil-bearing shales in Canada]]<br />
[[Category:Natural gas fields in Canada]]<br />
[[Category:Western Canadian Sedimentary Basin]]<br />
[[Category:Devonian System of North America]]<br />
[[Category:Upper Devonian Series]]<br />
[[Category:Devonian Alberta]]<br />
[[Category:Devonian British Columbia]]<br />
[[Category:Devonian Northwest Territories]]<br />
[[Category:Peace River Country]]<br />
[[Category:Frasnian Stage]]</div>imported>Volcanoguy