Petroleum coke is after crude oil by distillation to separate light and heavy oils, heavy oil and then by thermal cracking process, turned into a product. From the exterior, the coke is irregular in shape, black block sizes (or particle), with a metallic sheen, coke particles with porous structure, the main elements of carbon, possession…

AngelIslandconsists mainly of rocks of theAngelIslandterrane of the Franciscan. These rocks differ from much of the Franciscan in that they are metamorphosed to the blueschist facies. Blueschists form only under the unusual conditions of extremely high pressures and relatively low temperatures that are characteristic of subduction zones.