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沉积海槽
sedimentation trough
- 盆地沉积类型有台地型和海槽型两种。
There are two basin sediment types: the platform type and trough type. - 根据沉积相的空间展布，隆或古台地在石炭纪时为一个孤立的碳酸盐台地，周围被海槽围限。
According to space distribution of the sedimentary facies, Longhuo ancient platform was an isolated one, surrounded with troughs in the Carboniferous period. - 海槽型泥盆系多产出层控型金和多金属矿床，台地型则以沉积矿床为主。
In most cases, stratabound gold and polymetallic deposits occur in the trough-type Devonian, while sedimentary mineral deposits mainly occur in the platform-type Devonian.
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