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Sedimentary rocks are the lithified equivalents of sediments. They typically are produced by cementing, compacting, and otherwise solidifying preexisting unconsolidated sediments. Some varieties of sedimentary rock, however, are precipitated directly into their solid sedimentary form and exhibit no intervening existence as sediment. Organic ...
- Sedimentary Rock Types
Sedimentary rock - Clastic, Chemical, Organic: Conglomerates...
- Classification Systems
Sedimentary rock - Classification, Deposits, Types: In...
- Limestones and Dolomites
Sedimentary rock - Limestones, Dolomites, Calcite:...
- Iron-rich Sedimentary Rocks
Sedimentary rock - Iron-Rich, Clastic, Chemical: Almost all...
- Classification of Sandstones
Sedimentary rock - Clastic, Chemical, Organic: There are...
- Sedimentary Structures
Sedimentary structures are the larger, generally...
- Oil and Natural Gas
Sedimentary rock - Oil, Natural Gas, Formation: Natural gas...
- Evaporites
Sedimentary rock - Evaporites, Deposits, Minerals:...
- Sedimentary Rock Types
11 Απρ 2024 · The living organisms extract chemical components from the water and use them to build shells and other body parts. Biochemical sedimentary rocks are commonly composed of calcite, from a wide variety of sea life, or silica, largely from the single-celled microorganisms called radiolarian.
5 Νοε 2020 · River rocks are most often found on beaches and in stream beds and can come in a range of sizes, colors and textures. River rocks can be sedimentary, igneous, or metamorphic depending on the particular geography of the river where the rocks were found.
Sandstone is a sedimentary rock composed of sand-size grains of mineral, rock, or organic material. It also contains a cementing material that binds the sand grains together and may contain a matrix of silt- or clay-size particles that occupy the spaces between the sand grains.
Riverbeds and floodplains: Rivers erode rocks and carry sand downstream, depositing it along their courses and floodplains. The Fountain Formation in Colorado and the Bunter Sandstone in Germany are examples.
Fluvial (River) Environments: Rivers and their associated floodplains deposit sediments such as sand, silt, and clay. The sediments often show characteristics like cross-bedding, ripple marks, and gravel deposits .
24 Αυγ 2024 · We can classify sedimentary rocks in two broad categories: clastic and chemical. Clastic sedimentary rocks are made from fragments of eroded bedrock and sediment, which is usually derived from physical weathering. We classify clastic rocks by their grain size, shape, and sorting.
