5_Sedimentary rocks

5_Sedimentary rocks - GEO 303 Lecture 5 Sedimentary Rocks...

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Unformatted text preview: GEO 303, Lecture 5 Sedimentary Rocks Chapter 7 Next lecture : Ch 9 Metamorphic Rocks In lab : Finish Ch 4, Texas Memorial Museum trip Next time, Ch 6, igneous rocks February 1 st and 2 nd , 2011 Sedimentary Rocks Weathering processes Mechanical Chemical Weathering products Soils Clastic sediments Chemical sediments Depositional environments Sedimentary Rocks : form by weathering , erosion , transport, deposition and lithification of sediments Stratified (layered) rocks at Earth’s surface 2 types of sediment/sedimentary rock Clastic : rocks mechanically broken down into smaller particles Chemical : rocks dissolved and precipitated Recycled Rocks Recycled Rocks Recycled Rocks Recycled Rocks Figure 2.15- Sedimentary rocks form at Earth’s surface where water and atmospheric gasses attack rock Recycled Rocks Recycled Rocks (Figure 4-1) (Figure 4-1) Figure 4.1- The Rock Cycle Weathering : chemical and/or physical breakdown of rock at or near Earth’s surface. Weathering Processes Weathering Processes Rock of ages? Perhaps not. Physical and chemical weathering processes break down granite Weathering Processes Weathering Processes Goldich ’ s Guide to Weathering Mineral Temperature & Pressure Forms Stability at Surface olivine pyroxene...
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This note was uploaded on 03/20/2011 for the course GEO 303 taught by Professor Leon during the Spring '08 term at University of Texas.

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5_Sedimentary rocks - GEO 303 Lecture 5 Sedimentary Rocks...

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