Hoodoo Mountain

==Geology==

==Geology==

===Background===

===Background===

Hoodoo Mountain is part of the [[Northern Cordilleran Volcanic Province]] (NCVP), a broad area of [[shield volcanoes]], [[lava domes]], [[cinder cones]] and [[stratovolcanoes]] extending from northwestern British Columbia northwards through [[Yukon]] into easternmost [[Alaska]]. The dominant rocks comprising these volcanoes are [[alkali basalt]]s and [[hawaiite]]s, but [[nephelinite]], [[basanite]] and [[peralkaline]]{{efn|''Peralkaline rocks'' are magmatic rocks that have a higher ratio of sodium and potassium to aluminum.{{cite dictionary|title=Dictionary of Geology and Mineralogy|year=2003|publisher=[[McGraw Hill]]|edition=2nd|pages=20, 52, 178, 253, 256|isbn=0-07-141044-9}}}} [[phonolite]], [[trachyte]] and [[comendite]] are locally abundant. These rocks were deposited by volcanic eruptions from 20 million years ago to as recently as a few hundred years ago. The cause of volcanic activity in the Northern Cordilleran Volcanic Province is thought to be due to [[rift]]ing of the [[North American Cordillera]], driven by changes in relative plate motion between the [[North American Plate|North American]] and [[Pacific Plate|Pacific]] plates.

Hoodoo Mountain is part of the [[Northern Cordilleran Volcanic Province]] (NCVP), a broad area of [[shield volcanoes]], [[lava domes]], [[cinder cones]] and [[stratovolcanoes]] extending from northwestern British Columbia northwards through [[Yukon]] into easternmost [[Alaska]]. The dominant rocks comprising these volcanoes are [[alkali basalt]]s and [[hawaiite]]s, but [[nephelinite]], [[basanite]] and [[peralkaline]]{{efn|''Peralkaline rocks'' are magmatic rocks that have a higher ratio of sodium and potassium to aluminum.{{cite dictionary|title=Dictionary of Geology and Mineralogy|year=2003|publisher=[[McGraw Hill]]|edition=2nd|pages=20, 52, 178, 253, 256|isbn=0-07-141044-9}}}} [[phonolite]], [[trachyte]] and [[comendite]] are locally abundant. These rocks were deposited by volcanic eruptions from 20 million years ago to as recently as a few hundred years ago. Volcanism in the Northern Cordilleran Volcanic Province is thought to be due to [[rift]]ing of the [[North American Cordillera]], driven by changes in relative plate motion between the [[North American Plate|North American]] and [[Pacific Plate|Pacific]] plates.

Hoodoo Mountain is part of a subdivision of the NCVP called the Stikine Subprovince. This subprovince, confined to the Stikine region of northwestern British Columbia, includes three other volcanic centres: [[Heart Peaks]], [[Level Mountain]] and [[Mount Edziza volcanic complex|Mount Edziza]]. The four volcanic centres differ [[petrology|petrologically]] and/or volumetrically from the rest of the NCVP. Heart Peaks, Level Mountain and Mount Edziza are the largest NCVP centres by volume, the latter two of which have experienced volcanism for a much longer timespan than any other NCVP centre. Hoodoo Mountain, Level Mountain and Mount Edziza are the only NCVP centres that contain [[volcanic rock]]s of both [[mafic]]{{efn|''Mafic'' pertains to magmatic rocks that are relatively rich in [[iron]] and [[magnesium]], relative to [[silicon]].{{cite encyclopedia|last=Pinti|first=Daniele|date=2011|encyclopedia=Encyclopedia of Astrobiology|page=938|publisher=[[Springer Berlin Heidelberg]]|doi=10.1007/978-3-642-11274-4_1893|isbn=978-3-642-11271-3|chapter=Mafic and Felsic}}}} and [[intermediate composition|intermediate]] to [[felsic]]{{efn|''Felsic'' pertains to magmatic rocks that are enriched with silicon, oxygen, [[aluminum]], [[sodium]] and [[potassium]].}} composition.{{cite thesis|last=Edwards|first=Benjamin Ralph|title=Field, Kinetic, and Thermodynamic Studies of Magmatic Assimilation in the Northern Cordilleran Volcanic Province, Northwestern British Columbia|publisher=[[University of British Columbia]]|year=1997|page=6|chapter=1|degree=PhD|doi=10.14288/1.0052728}} The highest of the four complexes is Mount Edziza at {{convert|2786|m|ft|abbr=on}}, followed by Level Mountain at {{convert|2164|m|ft|abbr=on}}, Heart Peaks at {{convert|2012|m|ft|abbr=on}} and Hoodoo Mountain at {{convert|1850|m|ft|abbr=on}}.{{cite gvp|name=Edziza|vn=320060|archive-date=2021-08-10|access-date=2021-08-17}}{{cite gvp|name=Heart Peaks|vn=320040|archive-date=2021-05-02|access-date=2021-08-17}}{{cite gvp|name=Hoodoo Mountain|vn=320080|archive-date=2021-03-18|access-date=2021-08-17}}

Hoodoo Mountain is part of a subdivision of the NCVP called the Stikine Subprovince. This subprovince, confined to the Stikine region of northwestern British Columbia, includes three other volcanic centres: [[Heart Peaks]], [[Level Mountain]] and [[Mount Edziza volcanic complex|Mount Edziza]]. The four volcanic centres differ [[petrology|petrologically]] and/or volumetrically from the rest of the NCVP. Heart Peaks, Level Mountain and Mount Edziza are the largest NCVP centres by volume, the latter two of which have experienced volcanism for a much longer timespan than any other NCVP centre. Hoodoo Mountain, Level Mountain and Mount Edziza are the only NCVP centres that contain [[volcanic rock]]s of both [[mafic]]{{efn|''Mafic'' pertains to magmatic rocks that are relatively rich in [[iron]] and [[magnesium]], relative to [[silicon]].{{cite encyclopedia|last=Pinti|first=Daniele|date=2011|encyclopedia=Encyclopedia of Astrobiology|page=938|publisher=[[Springer Berlin Heidelberg]]|doi=10.1007/978-3-642-11274-4_1893|isbn=978-3-642-11271-3|chapter=Mafic and Felsic}}}} and [[intermediate composition|intermediate]] to [[felsic]]{{efn|''Felsic'' pertains to magmatic rocks that are enriched with silicon, oxygen, [[aluminum]], [[sodium]] and [[potassium]].}} composition.{{cite thesis|last=Edwards|first=Benjamin Ralph|title=Field, Kinetic, and Thermodynamic Studies of Magmatic Assimilation in the Northern Cordilleran Volcanic Province, Northwestern British Columbia|publisher=[[University of British Columbia]]|year=1997|page=6|chapter=1|degree=PhD|doi=10.14288/1.0052728}} The highest of the four complexes is Mount Edziza at {{convert|2786|m|ft|abbr=on}}, followed by Level Mountain at {{convert|2164|m|ft|abbr=on}}, Heart Peaks at {{convert|2012|m|ft|abbr=on}} and Hoodoo Mountain at {{convert|1850|m|ft|abbr=on}}.{{cite gvp|name=Edziza|vn=320060|archive-date=2021-08-10|access-date=2021-08-17}}{{cite gvp|name=Heart Peaks|vn=320040|archive-date=2021-05-02|access-date=2021-08-17}}{{cite gvp|name=Hoodoo Mountain|vn=320080|archive-date=2021-03-18|access-date=2021-08-17}}