{{Short description|Mountain ridge in the country of Canada}} {{Infobox mountain | name = Sorcery Ridge | image = | image_caption = | elevation_m = 2039 | elevation_ref = <ref name="KF">Elevation and coordinates derived from [[Google Earth]].</ref> | country=[[Canada]] | region_type = [[Provinces and territories of Canada|Province]] | region = [[British Columbia]] | district = [[Cassiar Land District]] | range = [[Tahltan Highland]] | map = Canada British Columbia | map_caption = Location in British Columbia | label_position = below | coordinates = {{coord|57|39|21.85|N|130|36|54.15|W|type:mountain_scale:100000|format=dms|display=inline,title}} | coordinates_ref= <ref name="KF"/> | topo_maker = [[National Topographic System|NTS]] | topo_map = {{Canada NTS Map Sheet|104|G|10}} }} '''Sorcery Ridge''' is a [[mountain]] [[ridge]] extending east of [[Tencho Glacier]] on the southern flank of [[Mount Edziza]] in northwestern [[British Columbia]], Canada. It is bounded on the north and south by valleys containing unnamed streams while to the east and northeast it is bounded by [[Tennaya Creek]] valley. Sorcery Ridge is the namesake of [[Sorcery Creek]] which flows adjacent to Tennaya Creek from another ridge just to the south.<ref name="Souther">{{cite map|last1=Souther|first1=J. G.|author-link1=Jack Souther|title=Geology, Mount Edziza Volcanic Complex, British Columbia|map=1623A|scale=1:50,000|type=[[Geological map]]|cartography=M. Sigouin, [[Geological Survey of Canada]]|publisher=[[Energy, Mines and Resources Canada]]|year=1988|language=en|doi=10.4095/133498|doi-access=free}}</ref>
The highest point of Sorcery Ridge reaches an elevation of {{convert|2039|m|ft|abbr=off}} at its westernmost end.<ref name="KF"/><ref name="Souther"/> Sorcery Ridge is one of three ridges east of the [[Big Raven Plateau]] named by Canadian [[volcanologist]] [[Jack Souther]], the other two being [[Cartoona Ridge]] to the south and [[Idiji Ridge]] to the north.<ref name="Souther"/>
==Geology== Sorcery Ridge consists largely of [[sedimentary rock|sedimentary]], [[volcanic rock|volcanic]], [[granitoid|granitic]] and [[metamorphic rock|metamorphic]] rocks of [[Mesozoic]] and [[Paleozoic]] age. These rocks are overlain by [[Pliocene]] [[alkali basalt]] flows of the [[Nido Formation]] which are in turn overlain by [[Pleistocene]] alkali basalt, [[hawaiite]], [[tristanite]], [[trachybasalt]] and [[mugearite]] flows and [[pyroclastic rock|pyroclastic]] [[breccia]] of the [[Ice Peak Formation]]. The Nido and Ice Peak formations are two [[geological formation]]s comprising the [[Mount Edziza volcanic complex]] which has been the focus of volcanic activity since the [[Miocene]].<ref name="Souther"/>
The northern side of Sorcery Ridge contains a {{Convert|215|m|ft|adj=mid|-high|abbr=off}} [[volcanic plug]] called [[The Neck (British Columbia)|The Neck]].<ref name="Souther"/><ref name="Souther2">{{Cite report|last1=Souther|first1=J. G.|author-link1=Jack Souther|title=The Late Cenozoic Mount Edziza Volcanic Complex, British Columbia|work=[[Geological Survey of Canada]]|publisher=Canada Communication Group|series=Memoir 420|year=1992|page=154|isbn=0-660-14407-7|doi=10.4095/133497|doi-access=free}}</ref> It consists mainly of [[trachyte]] of the Ice Peak Formation and is about {{Convert|300|m|ft|abbr=off}} in diameter, representing the eroded remains of a [[parasitic vent]] on the southeastern flank of the [[Ice Peak]] [[stratovolcano]].<ref name="Souther2"/> Two distinctive flows of [[Edziza obsidian]] are present on Sorcery Ridge which are also part of the Ice Peak Formation.<ref>{{cite journal|last1=Reimer|first1=Rudy|title=Reassessing the role of Mount Edziza obsidian in northwestern North America|journal=[[Journal of Archaeological Science]]|publisher=[[Elsevier]]|volume=2|pages=218, 219|year=2015|issn=2352-409X|doi=10.1016/j.jasrep.2015.04.003}}</ref>
==See also== *[[Volcanism of the Mount Edziza volcanic complex]]
==References== {{reflist}}
{{Mount Edziza volcanic complex}}
[[Category:Ridges of the Mount Edziza volcanic complex]] [[Category:Mesozoic British Columbia]] [[Category:Paleozoic British Columbia]] [[Category:Pliocene British Columbia]] [[Category:Pleistocene British Columbia]]