5.l.1 Physical Weathering(物理风化) 阳光 Break of rocks as differential expansion- contraction with change of temperature
Break of rocks as differential expansioncontraction with change of temperature 5.1.1 Physical Weathering（物理风化）
5.l.1 Physical Weathering(物理风化) 岩石因风化破 碎。岩石暴露的表 面积增多，风化作 用就进一步加剧
5.1.1 Physical Weathering（物理风化）
5.l.1 Physical Weathering(物理风化) Physical weathering of rocks at the top of Tai Mountain
Physical weathering of rocks at the top of Tai Mountain 5.1.1 Physical Weathering（物理风化）
5.l.1 Physical Weathering(物理风化) 24 square m 6 square m 12 square m of surface area ↑ 1m ↓ (a) 1m0.5m 0.25m (a)Physical weathering reduces partical size(without decreasing its overall volume)
(a)Physical weathering reduces partical size(without decreasing its overall volume) 5.1.1 Physical Weathering（物理风化）
5.I.1 Physical Weathering(物理风化) Sketch map of frost wedging(冰劈作用)
Sketch map of frost wedging（冰劈作用） 5.1.1 Physical Weathering（物理风化）