Lab3SedimentaryFaciesandBiostratigraphy[1]

Lab3SedimentaryFaciesandBiostratigraphy[1] - Sedimentary...

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Sedimentary Facies and Biostratigraphy
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o Facies - In a vertical sequence of rocks, the sum of a rock layer’s physical(lithologic) and fossil(biologic) characteristics Last week:
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Stratigraphy o The study of layered rock: Lithostratigraphy - relating and characterizing time periods using different rock layers Exercise 1 in Lab Biostratigraphy - relating and characterizing time periods by using the fossils present in them Exercise 2 in Lab
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Lithostratigraphy – Identifying Sedimentary Rocks Grain Size Grain Shape > 2mm Gravel > 1/8mm Sand > 1/256mm Silt < 1/256mm Clay Mineral Composition Quartz Muscovite Biotite Calcite Potassium Feldspar
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Walther’s Law Vertical succession (layers of different types of sedimentary rock) occurred from migrating environments “Lateral” migration
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Sea level Rise – Sea level Fall o Transgression - a movement of the shoreline landward o Sea Level Rise o Regression - a movement of the shoreline seaward o Sea Level Fall Walther’s law – vertical succession
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Coal or Shale Sandstone Limestone
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Rock Cores Well 1 Well 2
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Well Logs 10km Limestone Shale Sandstone
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Lab3SedimentaryFaciesandBiostratigraphy[1] - Sedimentary...

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