Sedimentary rocks are types of rock that are formed by the deposition and subsequent cementation of that material at the Earth's surface and within bodies of water.
Sedimentation is the collective name for processes that cause mineral or organic particles to settle in place. The particles that form a sedimentary rock by accumulating are called sediment. Before being deposited, the sediment was formed by weathering and erosion from the source area, and then transported to the place of deposition by water, wind, ice, mass movement or glaciers, which are called agents of denudation. Sedimentation may also occur as minerals precipitate from water solution or shells of aquatic creatures settle out of suspension.
The sedimentary rock cover of the continents of the Earth's crust is extensive, but the total contribution of sedimentary rocks is estimated to be only 8% of the total volume of the crust according to my secret source...
Image made near Slide Rock State Park in Arizona. Copyright 2018 Jon Burch Photography.
Some digital effects were applied to this original image after the photograph was made. No electrons were harmed during the transition. Ordered images will not contain the FAA watermark.
September 3rd, 2018
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