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Soils - Sedimentary Parent Material

Soils - Sedimentary Parent Material - SEDIMENTARYROCKS...

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SEDIMENTARY ROCKS
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White Clifs oF Dover (chalk) h5p://cache.eb.com/eb/image?id=74±94&rendTypeId=4
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Rock cycle
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WEATHERING produces solid parKcles (primary and secondary) + ions in soluKon
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TRANSPORTATION moves solid parKcles (primary and secondary) + ions in soluKon
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DEPOSITION of solid parKcles (primary and secondary) of ions in soluKon (precipitaKon)
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LITHIFICATION Greek lithos ‐ stone COMPACTION CEMENTATION
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LITHIFICATION COMPACTION
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LITHIFICATION CEMENTATION
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Lead to horizons….
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CLASTIC (DETRITAL) sedimentary rocks
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CLASTIC (DETRITAL) transported solid fragments from preexisKng rocks
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CLASTIC (DETRITAL) SEDIMENTS are classifed according to the size , shape , type and arrangement oF these parKcles.
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GRAIN SIZE frst stage oF classifcaKon parental material distance oF transport heavier material is deposited frst, then fner and fner
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GRAIN SIZE pebbles gravels Sand coarse ‐ fne 0.5‐2mm silt clay
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GRAIN SIZE what does it mean? parental material? What grain size was in the original rock? Granite rhyolite
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GRAIN SIZE what does it mean? distance of transport
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GRAIN SIZE what does it mean? heavier material is deposited frst, Then fner and fner
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GRAIN SIZE what does it mean? then fner and fner
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GRAIN SHAPE second stage of classiFcaKon Angular OR spherical (rounded)
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GRAIN SHAPE Angular / irregular in shape close to the source rock transported by ice
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GRAIN SHAPE well rounded in shape far from the source rock transported by water transported by wind pounded by the surf (may be close to the source)
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GRAIN SHAPE well rounded in shape far from the source rock transported by water
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GRAIN SHAPE well rounded in shape transported by wind
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GRAIN SHAPE well rounded in shape pounded by the surf (may be close to the source)
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Soils - Sedimentary Parent Material - SEDIMENTARYROCKS...

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