GEO 102 Lecture Notes - Downcutting, Rock Cycle, Plate Tectonics
Document Summary
Breaks the ice blocks apart: water (i) different than most liquids (a) most will contract when they freeze (b) most expand when they warm up, must have: (ii) freezes= expands! (iii) Expands 9% (a) allows ice to float (b) makes pipes burst (i) adequate moisture (ii) cracks in rock (iii) Copper = blue/green (a) 10x harder when oxidized (b) rust protects the copper (c) regular copper is soft from metallic bonds: example (i) iron silicate dissolves (ii) iron oxidizes (iii) oxidized iron combines with water (iv) Three corners (a) faster (b) rounding: results of weathering, regolith, loose layer of broken rock and mineral fragments, dissolved ions, dissolved fragments, not just soil (i) can be other things too. 10)benefits of weathering: creates soil, subcategory, can form other broken materials, produces clay, sand, and gravel, clay = result of weathering, sand= broken granites, produces minerals.
