Metamorphic Rocks and Weathering: Causes, Types, and Impacts - Prof. V. Liogys, Study notes of Geology

Download Metamorphic Rocks and Weathering: Causes, Types, and Impacts - Prof. V. Liogys and more Study notes Geology in PDF only on Docsity!  Metamorphic Rocks  Metamorphism is caused by changes in temperature and pressure.  Classified  Texture  Non-foliated- random  Foliated- Layered, parallel planes  Caused by applied stresses  Composition  Sedimentary Rocks  Rock produced from preexisting rock or bio/chemical precipitation.  Contact Metamorphism  Associated with magma chambers, batholiths  Regional Metamorphism  Associated with plate tectonics…ie.. high pressures  Weathering/erosion The processes that break down rocks  At the Earth’s surface, rocks are exposed to  Atmosphere(air, oxygen)  Biosphere(organic matter)  Hydrosphere(moisture and precipitation)  Human Influences!  Weathering converts rock to soil  Weathering is the physical and/or chemical alteration of rock  Humans and Weathering  Reefs and Rain Forests  Vegetation Removal  Differences between forested and urban areas 1. storage 2. Infiltration 3. runoff  Cutting or burning the tropical forests lead to erosions of soils and flooding  Physical Weathering  Dependent on  Vegetation cover  Soil organisms  Type of rock  Topography  Time  Rivers  Agents of erosion and transport