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1·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。

2·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。

3·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。

4·Then use antitone structural analysis method to recognize and reconstruct the primary tectonic structure and sedimentary feature of a basin in certain geological history.

要认识和重建某个地质历史时期盆地的原始构造格局和沉积特征，就必须除去后期叠加的构造层和构造变形，即反序构造分析法。