Sedimentary Rocks
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| Aqueos Sedimentation | Clastic sediments deposited in a liquid environment as a result of fluid flow; Subaqeuos deposition. Ex: Rivers, Streams, Oceans
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| Sediments | Material derived from pre-existing rocks through weathering process
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| Eolian Sedimentation | Clastic sediments deposited and modified by wind processes; Subaerial deposition.
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| Glacial Sedimentation | Clastic sediments resulting from glacial modifications to the Earth surface.
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| Gravitational Sedimentation | Clastic sediments, subaerial or subaqeous deposited primarily as a result of collapse or slope failure.
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| Coal | A readily combustible rock that contains carbonaceous material, formed from the compaction of altered plant materials.
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| Low grade to High grade Coal | Peat, Lignite, Bituminous and Anthracite
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| Biomedical Sedimentary Rocks | Sedimentary rocks formed by direct secretions from organisms. Ex: Limestone and Dolomite
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| Oids | Concentrically banded, spherical grains.
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| Peloids | Spherical grains composed of feces
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| Carbonate Reefs | Ridge-like or domal structures built by the accumulation of calcareous organisms.
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| Reefs | Exhibit a high biodiversity
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| Carbonate Mounds | Exhibit low biodiversity
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| Carbonate Shoals | Calcerous deposits in relatively shallow water forming a ridge, bank or bar of unconsolidated material
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| Chert | Accumulation of siliceous shells, usually in deep water
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| Flint | Has a dark coloration
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| Jasper | Has a red coloration
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| Chemical sedimentary rocks | Formed by direct chemical precipitation from solution. Ex: Limestone, Dolomite, and Rocksalt (Halite) and Bittersalt
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| Sabkha | Supratidal environment of deposition in arid or semiarid regions, characterized by high evaporation rates and evaporite deposits
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| Secondary precipitates | Broad group of minerals that precipitate as a result of changes in the physical and chemical environment
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| Strata/Bedding | Distinct layers of sediment/sedimentary rock representing: Consistent Sedimentation; Periods of environmental stability; individual storm events
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| Ripple Marks | Small ridges separated by small troughs.
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| Current Ripple Marks | Asymmetrical features formed by flow in one direction
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| Wave Ripple Marks | Symmetrical features formed by flow in two directions
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| Cross bedding | Layers angled downward from the surface they were deposited in, which indicated direction of flow (fluvial or eolian).
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| Mudcracks | Formed by the desiccation of sediments during dewatering. Usually rich in clay.
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| Grain size from small to large: | Clay, Silt, Sand, Gravel, Boulder
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Created by:
FaithRaquel2015
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