what controls the porosity of unconsolidated sediments?

• packing • grain size distribution or sorting • grain shape (angularity/roundness) • grain orientation (arrangement of particles)

what is effective porosity (ne)?

significantly smaller than total porosity interconnected pores that control groundwater flow

what is secondary porosity?

voids due to secondary features... fractures, joints, faults

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Porosity

exploring porous media

Question	Answer
what controls the porosity of unconsolidated sediments?	• packing • grain size distribution or sorting • grain shape (angularity/roundness) • grain orientation (arrangement of particles)
what is effective porosity (ne)?	significantly smaller than total porosity interconnected pores that control groundwater flow
what is primary porosity?	voids b/w individual grains
what is secondary porosity?	voids due to secondary features... fractures, joints, faults