Sedimentary Rock Week 5
Sandstone Sand refers to the size of the grains in the rock. Particles can range from 1/16 millimeter to 2 millimeters in diameter. The grains of sand in sandstone are small particles of rock, mineral, or organic matter that have been reduced in size by weathering. They tend to be susceptible to physical weathering. They have traveled or been deposited by means of water, wind, ice, or biological means. Once they have deposited they will begin the process of lithification. This is where the particles cement and consolidate into sedimentary rock. Quartz is usually one of the most common types of sand grain present in sandstone. They are formed in sheets as the water brings in the sediment and it settles and then the process repeats. These tend to break into sheets after formed. This is the top of the rock. One thing I noticed in the purple layer, is a few directional waves or ripples. They ...

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