Experiments in Calcium Carbonate Cementation
نویسنده
چکیده
Carbonate sediments may be cemented by a variety of forms of aragonite. calcite. or dolomite. The mineralogy of the cement has been regarded by most investigators as the product of the physico-chemical environment within the sediment at the time of cementation. This has been a reasonable working hypothesis until it was recently demonstrated that many different kinds of cement may occur in beachrocks and in permanently submerged marine sediments. Physico-chemical environmental factors alone cannot explain satisfactorily the distribution of calcium carbonate polymorphs in cements. The possible influence of organic compounds on carbonate precipitation has been mentioned by some geologists, but merely in passing.
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