Crow Lagoon

화쇄구 · Canada · 335m

A geologist observes the contact between a basaltic Plinian fallout lapilli unit overlying marine clay. This deposit is part of thick beds of basaltic Holocene tephra originating from an unknown Quaternary volcanic center found near Crow Lagoon, north of Prince Rupert near the southern tip of the Alaskan panhandle. Ballistically emplaced bombs imply a nearby source. The tephra beds are located along the south side of the Khutzeymateen Inlet, about 40 km N of Prince Rupert. · 사진: Photo by Jack Souther (Geological Survey of Canada, courtesy of Cathie Hickson).

화산 유형: 화쇄구
국가: Canada
지역: North America Volcanic Regions / Northern Cordilleran Volcanic Province
해발: 335m
좌표: 54.700, -130.230
마지막 분화: 미확인
판구조 환경: Intraplate / Continental crust (> 25 km)
화산 지형: Minor
주요 암석: Basalt / Picro-Basalt

지질학적 요약

Thick deposits of Holocene basaltic tephra originating from an unknown volcanic center have been found near Crow Lagoon, ~40 km N of Prince Rupert near the southern tip of the SE Alaskan panhandle. The deposits are located along the S side of the Khutzeymateen Inlet. Ballistically emplaced bombs imply a nearby source, which remains unidentified (Souther and Weiland, 1993).

Wikipedia 요약

영어 요약

Crow Lagoon is a little-known volcanic center located north of Prince Rupert, British Columbia, Canada. There are beds of thick, basaltic tephra that are of Holocene age.

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