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- https://geo.libretexts.org/Courses/SUNY_Potsdam/Sedimentary_Geology%3A_Rocks_Environments_and_Stratigraphy/07%3A_Chemical_Biochemical_and_Other_Sedimentary_RocksThis chapter covers evaporites, siliceous sedimentary rocks, organic-rich rocks and other sedimentary rocks beyond clastics and carbonates. These rocks typically form via direct precipitation or beca...This chapter covers evaporites, siliceous sedimentary rocks, organic-rich rocks and other sedimentary rocks beyond clastics and carbonates. These rocks typically form via direct precipitation or because of the activity of organisms. Many of them are of great economic importance.
- https://geo.libretexts.org/Courses/SUNY_Potsdam/Sedimentary_Geology%3A_Rocks_Environments_and_Stratigraphy/05%3A_Siliciclastic_Sedimentary_RocksSiliciclastic sedimentary rocks are composed of sediment that was deposited when moving particles came to rest. They can be subdivided into sandstones, conglomerates/breccias, and mudrocks based on g...Siliciclastic sedimentary rocks are composed of sediment that was deposited when moving particles came to rest. They can be subdivided into sandstones, conglomerates/breccias, and mudrocks based on grain size. They can be further subdivided based on mineralogy, texture, and other characteristics.
- https://geo.libretexts.org/Courses/SUNY_Potsdam/Sedimentary_Geology%3A_Rocks_Environments_and_Stratigraphy/03%3A_Describing_Sediment_and_Sedimentary_Rocks/3.01%3A_Grain_SizeThe size of the particles that make up clastic sediment and sedimentary rocks is an important characteristic. The size of the particles can be measured in a variety of ways and those measurements are...The size of the particles that make up clastic sediment and sedimentary rocks is an important characteristic. The size of the particles can be measured in a variety of ways and those measurements are the basis for descriptive terms. Sorting describes the uniformity of grain size in a specimen.
- https://geo.libretexts.org/Courses/SUNY_Potsdam/Sedimentary_Geology%3A_Rocks_Environments_and_Stratigraphy/05%3A_Siliciclastic_Sedimentary_Rocks/5.02%3A_Conglomerates_and_BrecciasConglomerates and breccias are made mostly of gravel-sized clasts (>2 mm). Conglomerates are made of rounded clasts and breccias are made of angular clasts. They are classified primarily on clast sh...Conglomerates and breccias are made mostly of gravel-sized clasts (>2 mm). Conglomerates are made of rounded clasts and breccias are made of angular clasts. They are classified primarily on clast shape, composition and origin. The support mechanism of the clasts and the orientation of clasts can provide important clues about depositional processes.
- https://geo.libretexts.org/Courses/SUNY_Potsdam/Sedimentary_Geology%3A_Rocks_Environments_and_Stratigraphy/08%3A_Diagenesis/8.01%3A_Diagenetic_ProcessesCompaction is a reduction in volume caused by burial; the amount of compaction depends on the properties of the sediment as well as local/regional processes. Compaction occurs via dewatering, grain-s...Compaction is a reduction in volume caused by burial; the amount of compaction depends on the properties of the sediment as well as local/regional processes. Compaction occurs via dewatering, grain-scale deformation, and dissolution. Cementation is the precipitation of mineral cements from fluids. Other processes such as replacement and/or dissolution can be important in some rocks.
- https://geo.libretexts.org/Courses/SUNY_Potsdam/Sedimentary_Geology%3A_Rocks_Environments_and_Stratigraphy/12%3A_Stratigraphy/12.03%3A_Sequence_StratigraphySequence stratigraphy is a technique used to subdivide strata based on changes in depositional trends.
- https://geo.libretexts.org/Courses/SUNY_Potsdam/Sedimentary_Geology%3A_Rocks_Environments_and_Stratigraphy/11%3A_Sea_Level/11.01%3A_Transgressions_and_RegressionsTransgressions occur when the shoreline moves in a landward direction and an overall deepening takes place. Regression occurs when the shoreline moves in a seaward direction and overall shallowing tak...Transgressions occur when the shoreline moves in a landward direction and an overall deepening takes place. Regression occurs when the shoreline moves in a seaward direction and overall shallowing takes place.
- https://geo.libretexts.org/Courses/SUNY_Potsdam/Sedimentary_Geology%3A_Rocks_Environments_and_Stratigraphy/10%3A_Depositional_Environments/10.03%3A_Clastic_Marginal_Marine_EnvironmentsMarginal marine environments form at the intersection of land and sea, where terrestrial and marine processes converge. In regions with a moderate supply of clastic sediment, these environments are sh...Marginal marine environments form at the intersection of land and sea, where terrestrial and marine processes converge. In regions with a moderate supply of clastic sediment, these environments are shaped by the balance between waves, rivers, and tides which results in the development of beaches, deltas, and tidal flats, respectively.
- https://geo.libretexts.org/Courses/SUNY_Potsdam/Sedimentary_Geology%3A_Rocks_Environments_and_Stratigraphy/06%3A_Carbonate_Sedimentary_Rocks/6.01%3A_CompositionCarbonates are dominated by the calcium, magnesium, and carbonate ions. The four most common carbonate minerals are calcite, aragonite, dolomite, and siderite - all of them form under specific enviro...Carbonates are dominated by the calcium, magnesium, and carbonate ions. The four most common carbonate minerals are calcite, aragonite, dolomite, and siderite - all of them form under specific environmental conditions. Calcite and aragonite are pseudomorphs; calcareous organisms have changed what form they prefer through geologic time in response to the amount of dissolved magnesium in the ocean.
- https://geo.libretexts.org/Courses/SUNY_Potsdam/Sedimentary_Geology%3A_Rocks_Environments_and_Stratigraphy/00%3A_Front_Matter/04%3A_About_this_BookRationale behind this book, overview of the content/organization, and background information about the authors.
- https://geo.libretexts.org/Courses/SUNY_Potsdam/Sedimentary_Geology%3A_Rocks_Environments_and_Stratigraphy/03%3A_Describing_Sediment_and_Sedimentary_Rocks/3.05%3A_ColorAlthough commonly influenced by diagenetic processes, there are certain situations where the color of a rock might be an important characteristic to observe. The Munsell Color System provides a way t...Although commonly influenced by diagenetic processes, there are certain situations where the color of a rock might be an important characteristic to observe. The Munsell Color System provides a way to describe color using the properties of hue, value, and chroma.
