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- The difference between chemical and biochemical sedimentary rocks is that in biochemical sedimentary rocks, organisms play a role in turning the ions into sediment. This means the presence and nature of biochemical sedimentary rocks are linked to the life requirements of the organisms that comprise them.
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What is a Biochemical sedimentary rock?
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It is possible for one type of sedimentary rock to form from both chemical (inorganic) and biochemical (organically mediated) processes. Chemical and biochemical sedimentary rocks are classified based on the minerals they contain, and are frequently dominated by a single mineral.
- Karla Panchuk
- 2019
The difference between chemical and biochemical sedimentary rocks is that in biochemical sedimentary rocks, organisms play a role in turning the ions into sediment. This means the presence and nature of biochemical sedimentary rocks are linked to the life requirements of the organisms involved.
Biochemical. Biochemical sedimentary rocks are not that different from chemical sedimentary rocks; they are also formed from ions dissolved in solution. However, biochemical sedimentary rocks rely on biological processes to extract the dissolved materials out of the water.
7: Chemical, Biochemical, and Other Sedimentary Rocks. Page ID. 20384. This chapter focuses on sedimentary rocks other than clastics and carbonates (evaporites, siliceous, and organic-rich rocks). Most of them form either from direct precipitation from fluids or because of the activities of living organisms.
Apr 11, 2024 · Biochemical sedimentary rocks are commonly composed of calcite, from a wide variety of sea life, or silica, largely from the single-celled microorganisms called radiolarian. Organic sedimentary rock contains the remains of organic material that has undergone the lithification process.
Feb 14, 2024 · Learn about sedimentary rocks in geology, including their origin, properties, and classification. Get examples and identification tips.
A biochemical sedimentary rock. Coquina is a biochemical variety of limestone that is composed of shells, fossils, and sand that have been poorly cemented together. Coquina is often tan in color with shells that are easily visible to the naked eye.
