Three broad categories of sedimentary environments are as following.
Marine ecosystems are aquatic environments with high levels of dissolved salt, such as those found in or near the ocean. Marine ecosystems are defined by their unique biotic (living) and abiotic (nonliving) factors
Continental depositional environments are dominated by clastic sedimentary rocks, largely because of their nearness to the source of the sediments. Glacial depositional environments are controlled mostly by the weathering and erosion by glaciers.
Transitional environments, such as tidal flats
The Transitional environments are those environments at or near where the land meets. the sea. Transitional sedimentary environments include deltas, beaches and barrier islands, lagoons, salt marshes, and tidal flats.
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