--> --> Abstract: Porosity Loss in Sandstone by Ductile Grain Deformation During Compaction, by E. F. McBride; #90965 (1978).
[First Hit]

Datapages, Inc.Print this page

Abstract: Previous HitPorosityNext Hit Loss in Previous HitSandstoneNext Hit by Ductile Grain Deformation During Compaction

E. F. McBride

As exploration moves to greater depths, attention must be paid to the amount of Previous HitporosityNext Hit lost in sandstones by compaction. Deformation of ductile grains is the chief cause of Previous HitporosityNext Hit reduction during compaction, except in nearly pure quartz sandstones. Shale clasts and micaceous rock fragments (slate, schist, phyllite, etc) are the chief ductile grains in Previous HitsandstoneNext Hit, but glauconite and other fecal pellets are locally abundant. The amount of Previous HitporosityNext Hit loss by deformation of these grains depends on their abundance and the amount of overburden. It is common for sandstones to lose from 5 to 15% of their original total Previous HitporosityNext Hit this way, and some lithic arenites have lost their entire Previous HitporosityNext Hit during compaction. Knowledge of Previous HitsandstoneNext Hit composition is helpful in Previous HitpredictingNext Hit the am unt of Previous HitporosityTop lost by ductile grain deformation.

AAPG Search and Discovery Article #90965©1978 GCAGS and GC Section SEPM, New Orleans, Louisiana