... 原生粘土 primary clay 原始沉积构造 primary sedimentary structure 原始地层学 protostratigraphy ...
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...成因性或分类性术语极多，其中，在沉积作用中或 在沉积物固结之前形成的构造称为原生沉积构造（Primary sedimentary structure），在沉积物 固结之后形成的构造称为次生沉积构造（Secondary sedimentary structure）。
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microbial-induced primary sedimentary structure 微生物形成的原生沉积构造
microbially induced primary sedimentary structure 微生物参与形成的原生沉积构造
To restore the original occurrence condition of a primary sedimentary structure is a routine work for palaeocurrent analysis.
恢复原生沉积构造的原始产状要素，是古水流分析中的一项重要基础工作。
The shape of Datangpo primary manganese deposit and its ore structure are comparatively complex but the structure is simple which belongs to the sedimentary of littoral basin facies.
大塘坡原生锰矿矿体形态和矿石结构较复杂，构造简单，属滨海盆地相沉积。
On the basis of the properties, textures and primary structure of deposits, 21 sedimentary microfacies types are distinguished in the alluvial fan of the Sandu red basin.
根据沉积物的性质、结构及原生沉积构造，将三都红盆冲积扇体划分为21种沉积微相类型。
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