アメリカ合衆国 · 火山原
Imuruk Lake
- タイプ
- 火山原
- 標高
- 610m
- 最終噴火
- 300年
- タイプ
- 火山原
- 国
- アメリカ合衆国
- 地域
- 北アメリカ / 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
- プレート内部 / 大陸地殻 (> 25 km)
- 火山地形
- 火山群
- 主要岩石
- 玄武岩 / ピクライト質玄武岩
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
1件の記録用語集詳細タイムライン
- 300年VEI ?地質学的推定300 ~ 終了日不明Lost Jim Cone
近くの火山
外部リンク
⚠ 参考情報です。緊急対応には使用しないでください。