Sedimentary rocks are those rocks which form at or near the earth's surface at relatively low temperatures and pressures primarily by either: 1.Deposition by water, wind or ice; 2.precipitation from solution (may be biologically mediated); and /or 3.growth in position by organic processes (e.g., carbonate reefs). Examples include sandstone, limestone, shale, dolomite, and rock salt.
Geoscience platform for the exchange of information concerning organic-rich strata such as black shales, oil shales and hot shales.
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