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Edziza obsidian is the most widely distributed obsidian in western North America and perhaps the most widely distributed obsidian in subarctic North America, occurring over an area of more than 2,200,000 km 2 (850,000 sq mi).
The Mount Edziza volcanic complex is a linear group of volcanoes in northwestern British Columbia, Canada. [8] [9] It is about 65 km (40 mi) long and 20 km (12 mi) wide, consisting of several stratovolcanoes, shield volcanoes, subglacial volcanoes, lava domes and cinder cones.
The source of obsidian for cultures inhabiting the territory of and around Greece was the island of Milos; the Starčevo–Körös–Criș culture obtained obsidian from sources in Hungary and Slovakia, while the Cardium-Impresso cultural complex acquired obsidian from the island outcrops of the central Mediterranean.
Obsidian Ridge is a volcanic mountain ridge in northwestern British Columbia, Canada, located on the south side of Artifact Creek at the southeast end of Mount Edziza Provincial Park. It was named on January 2, 1980 by the Geological Survey of Canada for its high quality obsidian .
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A map of seamounts near Farallon de Pajaros. Ahyi can be found in the southeast of the island. Ahyi is a submarine volcano which can be found in the northern portion of the Mariana Arc. The structure of the volcano consists of a 12 km (7 mi)-wide stratovolcanic cone that rises from
[33]: 69 A pyroclastic flow from South Deadman vent traveled about 3.7 miles (6 km). [34] Some of the open pits were filled with thick and slow-moving lava to form the South Deadman Creek, Glass Creek and Obsidian Flow domes. [36] Others, such as the Inyo Crater Lakes near Deer Mountain, remained open and were later partially filled with water.
The Mt. St. Catherine massif is the youngest of the five volcanoes on the island. [1] The volcano has a ~1.5-km horseshoe-shaped crater open to the east, where a complex of volcanic lava domes occur across its flanks and is monitored by the Seismic Research Center of the University of the West Indies. The volcano is considered dormant because ...