Coffee Crater

==Geology==

==Geology==

As a part of the Mount Edziza volcanic complex, Coffee Crater lies within a broad area of volcanoes called the [[Northern Cordilleran Volcanic Province]], which extends from northwestern British Columbia northwards through [[Yukon]] into easternmost [[Alaska]].{{sfn|Souther|1988}}{{sfn|Edwards|Russell|2000|pp=1280, 1281, 1283, 1284}} The dominant rocks comprising these volcanoes are [[alkali basalt]]s and [[hawaiite]]s, but [[nephelinite]], [[basanite]] and [[peralkaline rock|peralkaline]] [[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 tectonics|plate motion]] between the [[North American Plate|North American]] and [[Pacific Plate|Pacific]] plates.{{sfn|Edwards|Russell|2000|p=1280}}

As a part of the Mount Edziza volcanic complex, Coffee Crater lies within a broad area of volcanoes called the [[Northern Cordilleran Volcanic Province]], which extends from northwestern British Columbia northwards through [[Yukon]] into easternmost [[Alaska]].{{sfn|Souther|1988}}{{sfn|Edwards|Russell|2000|pp=1280, 1281, 1283, 1284}} The dominant rocks comprising these volcanoes are [[alkali basalt]]s and [[hawaiite]]s, but [[nephelinite]], [[basanite]] and [[peralkaline rock|peralkaline]] [[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. 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 tectonics|plate motion]] between the [[North American Plate|North American]] and [[Pacific Plate|Pacific]] plates.{{sfn|Edwards|Russell|2000|p=1280}}

Coffee Crater is a [[basalt]]ic cinder cone of the [[Big Raven Formation]], the youngest [[stratigraphic unit]] of the Mount Edziza volcanic complex.{{sfn|Natural Resources Canada: Coffee Crater}}{{sfn|Souther|1988}} The construction of Coffee Crater took place during the [[Holocene]] and was accompanied by the eruption of [[lava]] and [[tephra]].{{sfn|Souther|1988}}{{sfn|Souther|1992|pp=27, 207}} It overlies a broad lobe of [[Kakiddi Formation]] [[trachyte]] which likely issued from Punch Cone in the north-northwest on the southwestern flank of [[Ice Peak]].{{sfn|Souther|1988}}{{sfn|Souther|1992|p=210}} [[Edziza obsidian]] associated with the [[Armadillo Formation]] occurs adjacent to Coffee Crater.{{sfn|Reimer|2015|p=419}}

Coffee Crater is a [[basalt]]ic cinder cone of the [[Big Raven Formation]], the youngest [[stratigraphic unit]] of the Mount Edziza volcanic complex.{{sfn|Natural Resources Canada: Coffee Crater}}{{sfn|Souther|1988}} The construction of Coffee Crater took place during the [[Holocene]] and was accompanied by the eruption of [[lava]] and [[tephra]].{{sfn|Souther|1988}}{{sfn|Souther|1992|pp=27, 207}} It overlies a broad lobe of [[Kakiddi Formation]] [[trachyte]] which likely issued from Punch Cone in the north-northwest on the southwestern flank of [[Ice Peak]].{{sfn|Souther|1988}}{{sfn|Souther|1992|p=210}} [[Edziza obsidian]] associated with the [[Armadillo Formation]] occurs adjacent to Coffee Crater.{{sfn|Reimer|2015|p=419}}