What can cause hydrogenous calcium carbonate deposits?
Hydrogenous calcium carbonate deposits are a type of sediment found in the ocean. They contain manganese and iron oxides that are found in nodules. This sediment is a direct deposit or precipitation from salt water.
Answer and Explanation:
Hydrogenous calcium carbonate deposits are caused by evaporation, an elevated temperature of seawater, or a lower acidity of seawater. The make-up of salt water changes as evaporation occurs. A change in water temperature can happen as the sun beams down on it while small plants use up dissolved carbon dioxide which increases the pH (less acidic). The hydrogenous calcium carbonate deposits form around shell fragments and other various particles in the water that look like small, white grains.
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from Earth Science 101: Earth ScienceChapter 10 / Lesson 1
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