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06. sedimentary_06

06. sedimentary_06 - SEDIMENTARY ROCKS 1 Know the...

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SEDIMENTARY ROCKS 1) Know the differences between weathering, erosion, deposition, and lithification. Weathering – Breaking down of rock into smaller pieces ( sediment ) Erosion – Movement of sediment from one place to another Deposition – Placement of sediment at a new location Lithification – Turning loose sediment into sedimentary rock 2) Know the two different types of weathering and what causes them. Chemical – Rock dissolved ( in water ) into individual molecules. Especially effective if the water is acidic or hot. Mechanical – Rock is physically broken down into smaller pieces. Happens from impact, thermal expansion, or frost wedging. 3) What are the four agents of erosion, and which is most important? 1. Water – Most important by far 2. Wind 3. Gravity 4. Ice
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4) Know the three ways of transporting (=eroding) weathered material in water. 1. Bed Load: Rolls or bounces along the bottom 2. Suspended Load: Turbulence in water keeps smaller particles in water and off the bottom.
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