发育于大陆坡麓,被沉积物覆盖,向海缓斜的扇形地。海底扇多展布于海底峡谷前缘，主要由峡谷运来的大量沉积物在峡谷口外堆积而成。海底扇亦称深海扇，旧称海底三角洲。
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着重介绍了异地碳酸盐岩块体和碳酸盐岩重力流沉积的研究进展，即线源式的碳酸盐岩裙沉积和点源式的碳酸盐岩海底扇沉积；
This paper introduced the research progress of the allochthonous carbonate blocks and carbonate gravity flow for the line sourced carbonate aprons and the point sourced carbonate submarine fans.
“九五”期间四川西康群区区调的实践也证明，在造山带复理石区填图中，海底扇法是一种比层序地层学更可行、更有效、更直观的方法。
The practical application of this method in the orogenic belt in the western Sichuan has been proved to be feasible and effective.
向上变细的水道可以出现在好多种环境中，从海底峡谷到冲积扇。
Upward-fining channels may occur in a wide range of environments from submarine canyon to alluvial fan.
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