Plinth Peak
Encyclopedia
Plinth Peak, sometimes called Plinth Mountain, is the highest satellite cone
of Mount Meager
, and one of four overlapping volcanic cones which together form the northernmost volcanic complex in the Cascade Volcanic Arc
and the Garibaldi Volcanic Belt
. It is one of the most recently formed volcanic formations of the Mount Meager massif.
Plinth Peak is the highest volcanic peak of Mount Meager. Located on the steep north flank of Plinth is the remnant of a inner crater
wall that was destroyed by a lateral blast
during a period of volcanic activity about 2,350 years ago.
Satellite cone
A parasitic cone is the cone-shaped accumulation of volcanic material not part of the central vent of a volcano. One forms by eruptions from fractures on the flank of the volcano. These fractures occur because of the flank of the volcano is unstable...
of Mount Meager
Mount Meager
Mount Meager, originally known as Meager Mountain, is a complex volcano in the Sea-to-Sky Corridor of southwestern British Columbia, Canada. It is located north of Vancouver at the northern end of the Pemberton Valley. Part of the Cascade Volcanic Arc of western North America, its summit is above...
, and one of four overlapping volcanic cones which together form the northernmost volcanic complex in the Cascade Volcanic Arc
Cascade Volcanoes
The Cascade Volcanoes are a number of volcanoes in a volcanic arc in western North America, extending from southwestern British Columbia through Washington and Oregon to Northern California, a distance of well over 700 mi ...
and the Garibaldi Volcanic Belt
Garibaldi Volcanic Belt
The Garibaldi Volcanic Belt, also called the Canadian Cascade Arc, is a northwest-southeast trending volcanic chain in the Pacific Ranges of the Coast Mountains that extends from Watts Point in the south to the Ha-Iltzuk Icefield in the north. This chain of volcanoes is located in southwestern...
. It is one of the most recently formed volcanic formations of the Mount Meager massif.
Plinth Peak is the highest volcanic peak of Mount Meager. Located on the steep north flank of Plinth is the remnant of a inner crater
Volcanic crater
A volcanic crater is a circular depression in the ground caused by volcanic activity. It is typically a basin, circular in form within which occurs a vent from which magma erupts as gases, lava, and ejecta. A crater can be of large dimensions, and sometimes of great depth...
wall that was destroyed by a lateral blast
Lateral eruption
A lateral eruption, also called a flank eruption or lateral blast if explosive, is a volcanic eruption that takes place on the flanks of a volcano instead of at the summit. Lateral eruptions are typical at rift zones where a volcano is breaking apart...
during a period of volcanic activity about 2,350 years ago.
See also
- List of volcanoes in Canada
- List of Cascade volcanoes
- Devastator PeakDevastator PeakDevastator Peak, also known as The Devastator, is the lowest and southernmost of the six subsidiary peaks that form the Mount Meager massif in southwestern British Columbia, Canada. It is located west of Bralorne.-Geology:...
- Pylon PeakPylon PeakPylon Peak is the southernmost summit of the six named volcanic peaks of Mount Meager in British Columbia, Canada. Two pinnacled ridges extend out from Pylon and are named respectively the Pylons and the Marionettes. Pylon Peak overlooks the Meager Creek Hot Springs.Erosional remnants of flows from...
- Capricorn MountainCapricorn MountainCapricorn Mountain is one of the several volcanic peaks of the Mount Meager massif in southwestern British Columbia, Canada. The slopes of Capricorn Mountain appear to be more gentle than other volcanic peaks of the massif...
- Mount JobMount JobMount Job is one of the six named volcanic peaks of Mount Meager in British Columbia, Canada. It is a pile of rubble held together by volcanic ash and sand...
- Plinth AssemblagePlinth AssemblageThe Plinth Assemblage, also known as the Plinth Formation, is an accreted terrane of igneous rocks in southwestern British Columbia, Canada, located just north of the Lillooet River and on the northern flank of the Mount Meager massif...
- Volcanism of Western CanadaVolcanism of Western CanadaVolcanism of Western Canada produces lava flows, lava plateaus, lava domes, cinder cones, stratovolcanoes, shield volcanoes, submarine volcanoes, calderas, diatremes and maars, along with examples of more less common volcanic forms such as tuyas and subglacial mounds.-Volcanic belts:*Anahim...
- Geology of the Pacific NorthwestGeology of the Pacific NorthwestThe geology of the Pacific Northwest refers to the study of the composition , structure, physical properties and the processes that shape the Pacific Northwest region of the United States and Canada...