← PHYSICAL/MECHANICAL WEATHERING Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All FROST SHATTERING As water seeps into rock fractures and joints, it freezes into ice crystals, expands, and splits rocks apart forming jagged edges and pointy boulders. THERMAL EXPANSION Rocks with crystals expand and contract when heated and cooled. Overtime, exposed rocks weaken and disintegrate, forming jagged carpet of rocks over desert surface. EXFOLIATION Rock disintegration of overlaying rocks to expose intrusive igneous rocks (granite), formed under high pressure in earths interior. (Pressure release) PLANTS AND ANIMALS Burrowing, roots growing roots widen and split apart rock from gradual pressure