Researches show that in the early stage of sandstone diagenesis, compaction, pressure solution, cementation and replacement reduce both the porosity and the permeability.
研究表明，砂岩层内的早期成岩作用(压实、压溶、胶结和交代作用)使孔隙度和渗透性降低。
Constructive diageneses includes dolomitisation recrystallization dissolution and pressure solution while destructive diageneses include cementation compaction silication and filling.
而破坏性成岩作用包括胶结作用、压实作用、硅化作用、充填作用。
The unconsolidated sediment being consolidation and dehydration, while the primary porosity is destroyed fatally, is due to the compaction and pressure solution.
压实、压溶作用使早期未固结的沉积物压实脱水，对沉积物的原生孔隙有致命的破坏性作用。
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