One of the most debated topics in carbonate sedimentology is the "Dolomite Problem." While dolostone is abundant in the ancient rock record, it is rarely seen forming in modern oceans.
The Origins and Evolution of Carbonate Sedimentary Rocks: Modern Perspectives origin of carbonate sedimentary rocks pdf new
Unlike terrigenous rocks (like sandstone) which come from the erosion of older rocks, carbonates are "born, not made." They are produced in situ within "carbonate factories." One of the most debated topics in carbonate
Driven by light-dependent organisms like corals and green algae. This factory produces the classic high-energy reefs we see today. New research suggests that is the missing link
New research suggests that is the missing link. Specific sulfate-reducing bacteria lower the energy barrier for magnesium to incorporate into the crystal lattice, allowing dolomite to form at low temperatures. This "microbial model" is now the leading theory for the origin of massive Precambrian and Paleozoic dolostones. 4. Carbonates and the Global Carbon Cycle