Dolomite

Microbial activity is known to impact the formation and alteration of many different rock types. For carbonate caprock (CCR), a lithology found on salt diapirs, it is generally accepted that microbial activity drives the precipitation of carbonate minerals, forming limestone and…

The formation of dolomite at low temperature (< 80 °C) is uncommon in modern environments, however dolomite is abundant in the geologic record. The paradox between the scarcity of modern dolomite and abundance in ancient dolomite has been of long-term interest to geologists. …

The origin of dolomite has been enigmatic. It is a common constituent of carbonate hydrocarbon reservoirs, it is abundant in Phanerozoic sedimentary carbonate rocks, but dolomite is rare in Quaternary and Recent rocks. Many different models have been suggested to explain its ori…