稳定同位素特征表明其成岩流体为海水、大气成因水或原生水。
The stable isotope composition indicates that their rock-forming fluid is the seawater, meteoric water or primary water.
压实作用和石英的次生加大使碎屑岩的原生孔隙度极大的降低，溶解作用是次生孔隙形成的主要因素。
The compactionand secondary enlargement of quartz lead to the great decrease of primary porosity of clastic rocks, and dissolution is contributed to the formation of secondary pore space.
沉积岩中的缝合线构造有原生和次生两种成因。
There are primary stylolite and secondary stylolite in sedimentary rocks.
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