Earth Sciences 1022A/B Chapter 4: Unit 4: Weathering and Sedimentary Rocks

• School: Western University
• Department: Earth Sciences
• Course: Earth Sciences 1022A/B
• Professor: Hitchcock

Document Summary

Physical weathering break down rocks with stress and force, it does not alter the structures present. Mudrocks (siltstone, mudstone, shale: identify sedimentary rocks in the rock and mineral kit by name, and by classification parameters (i. e. chemical). rock"s composition. Hydrolysis: 2kaisi3o8 + 2h++ 9h2o h4al2si2o9 + 4h4sio4 + 2k+ (aq) + cl: define diagenesis. Process of consolidation of sediment to form sedimentary rocks. Diagenesis, lithification (solidification of sediment), cementation (chemical, glues sediment together: classify siliciclastic and chemical sedimentary rocks by grain size, features and, link sedimentary features (i. e. wave ripples) to: Environmental or physical processes that generates them (i. e. wave action): link sedimentary features to the sedimentary environments presented in the next unit. Sedimentary rock is the result of weathering and burial (external processes) Chemical or mechanical processes that break down rocks on the earth"s surface. Physical processes that breakdown rocks without changing their composition. Water gets into cracks and expands when it freezes.