What is the effect of the Green granite slabs?

Granite granite slabs type, most of the calc-alkaline slender granites found in the oceanic island arc are called the M-type, derived from the magma produced in the mantle or the subduction oceanic crust beneath these island arcs. M-type transition to I (Cordillera type), which represents the active continental margin of a large number of gabbro-quartz diorite-a cloud of diorite sets. Craton and continental collision fold with the aluminum granite is called S-type. Finally, the stable fold belt, the craton uplift belt and the rift zone of the alkaline granite are called the A-type granite. The difference in mineral, geochemistry and mineralization of these granite types reflects the difference in their generation processes (including source rocks), and each process and source reflects different geological environments.

According to the study of the Lacranian fold belt in southeastern Australia, Chapest and White divided the rock types of two different granites, called type I and type S. Type I granite magma is partially fused from the Igneous source rock. The S-type granitic magma is partially melted by the sedimentary rock. Sn mineralization is closely related to S-type granites, and Mo minerals are closely related to I-type granites.

Green granite slabs three according to the granite in the magnetite, divided into magnetite series and ilmenite series, and I type and S type basically the same. Magnetite series is characterized by a magnetite (0.1-2% volume fraction), ilmenite, hematite, pyrite, stone, lacquer and so on. The ratio of Fe3 + / Fe2 + and Mg / Fe2 + in the biotite is high. The Fe3 + / Fe2 + and Mg / Fe2 + ratios of ilmenite are characterized by ilmenite (<0.1 volumetric fraction), pyrrhotite, graphite, muscovite and biotite; Deposits.

Green granite slabs