Uplifted Trench Sediments: Southwestern Alaska-Bering Shelf Edge
Uplifted Trench Sediments: Southwestern Alaska-Bering Shelf Edge
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隆起的海沟沉积物：阿拉斯加西南部-白令陆架边缘
作者：
J. Moore
白垩纪浊积岩沿阿拉斯加西南部大陆边缘和白令陆棚边缘不连续出露1700 km，分布范围为沿着。平行于出露模式的古水流和原生安山质火山碎屑的丰度表明沉积在海沟中。这条白垩纪海沟与大陆接壤，在第三纪最早期被阿留申岛弧海沟所取代。
Cretaceous turbidites are discontinuously exposed for 1700 kilometers along the continental margin of southwestern Alaska and the Bering shelf edge. Paleocurrent flow parallel to exposure patterns and the abundance of primary andesitic volcanic detritus suggest deposition in an oceanic trench. This Cretaceous trench bordering the continent was superseded by the Aleutian arc-trench in the earliest Tertiary.