Why is intracrystalline fracturing so common in brittle deformation of highly porous rocks?
What will be an ideal response?
Ans: Intracrystalline means within (rather than between) crystals. In highly porous rocks the stress that builds up across grain – grain contacts become large because the forces are distributed across very small areas (stress is force per area), which makes them fracture internally more easily than if the porosity was small or nonexistent.
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