Explanation
The general name of rock formed by sedimentation with more than 50% carbonate minerals. The main minerals are caldte, dolomite and iron dolomite. Other non carbonate mixed components include quartze, feldspar, mica, clay mineral and heavy minerals. Authigenic minerals include quartze, glauconite, phosphate mineral, gypsum, etc. Common structures include crystalline granular structure, oolitic structure, pisolitic structure, clastic structure, biological structure, etc. According to chemical composition, it can be divided into ultra-high calcium limestone, high calcium limestone, high-purity carbonatite rock and high magnesium dolomitite carbonatite. The reserves of carbonatite type oil and gas fields in the world account for 50% of the total reserves and 60% of the total production. Solid minerals associated with carbonatite include gypsum, rock salt, potassium salt, mercury, antimony, copper, lead, zinc, silver, nickel, cobalt, uranium, vanadium, etc
Classification
Natural materials and products -> Mineral materials