Imuruk Lake

火山原 · United States · 610m

タイプ: 火山原
国: United States
地域: North America Volcanic Regions / Northern Alaska-Bering Sea Volcanic Province
標高: 610m
座標: 65.517, -163.450
最終噴火: 300年
テクトニクス環境: Intraplate / Continental crust (> 25 km)
火山地形: Cluster
主要岩石: Basalt / Picro-Basalt

地質学的概要

The Oligocene-to-Holocene Imuruk monogenetic volcanic field in the central Seward Peninsula north of the Bendeleben Mountains contains around 75 small basaltic vents surrounded by voluminous lava flows. The largest and most recent vent is the Lost Jim cone, a 30-m-high cinder cone near Imuruk Lake that produced the only Holocene lava flow in the field. The massive Lost Jim lava flow, erupted about 1,655 years ago, extends 35 km W and 9 km N of the vent, and covers about 230 km2. The next youngest flow, the late-Pleistocene Camille lava flow, traveled 39 km from its vent.

Wikipedia の要約

英語版の要約

Imuruk Lake is the largest body of fresh water in Seward Peninsula in the U.S. state of Alaska. It measures 31 square miles (80 km2) and has a drainage basin of 102 square miles (260 km2), It lies on top of a lava plateau at an elevation of 960 feet (290 m). The drainage basin is relatively flat, as the maximum elevation is only about 1,600 feet (490 m). A low gap in the divide between the lake and the head of the right fork of Goodhope River rises only a few feet above the lake. The Fairhaven Ditch takes practically all its water from the lake. Serpentine Hot Springs flow to the Serpentine River, 47 miles (76 km) northwest of Imuruk Lake.

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噴火履歴

概要 (VEI時系列)

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詳細タイムライン

300年VEI ?地質学的推定
300 ~ 進行中
Lost Jim Cone

外部リンク

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