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Sedimentary Rocks and Weathering Processes Overview

Explore sedimentary rocks like shale, limestone, and conglomerate, along with chemical weathering processes such as hydrolysis and oxidation. Learn about different types of basins, diagenesis, and indices of maturity in Earth's formations.

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Sedimentary Rocks and Weathering Processes Overview

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  1. Exam 3 Review • Sedimentary Rocks: clastic rocks- shale, siltstone, sandstone (various types), conglomerate/breccia; biochemical-limestone; chemical- sulfates and chlorides, dolomite, banded iron formation (BIF) • Mechanical and chemical weathering, plus transport (erosion) • Long and short transport systems • Continental shelf, slope, rise, and abyssal plain • Active and passive continental margins • Bedding features • Types of basins • Indices of maturity; mineralogy, roundness and sorting • Porosity, permeability, compaction, cementation • Diagenesis

  2. Exam 3 Review • Biochemical sedimentary rocks – limestones • Carbonate secretion – shells, corals, etc. • Carbonate compensation depth (CCD) • Micrite, oolitic limestone, fossiliferous limestone • Chemical sedimentary rocks- Gypsum and salts – salina, sabkha, deep-water models • Banded iron formation – Fe transport, oxidation, deposition, age and importance for interpretation of Earth’s atmosphere

  3. Exam 3 Review • Chemical Weathering: hydrolysis, hydration, carbonation, solution, oxidation-reduction • Calcite solubility relationships: pH, equilibrium constants • Goldich’s stability series • Clay mineral genesis

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