Abstract
Manganese skarns in the Shizhuyuan supergiant W-Sn-Mo-Bi-Be deposit consist of spessartine, almandine-spessartine garnet, rhodonite, tephroite, helvite, alabandite, Mn-bearing salite, manganese hedenbergite, Mn-bearing phlo-gopite and rhodochrosite. The development of the skarn is related, in time and space, to the greisenization-mineralizations subsequent to calcic skarnization and related retrograde alteration. Complexity of mineral assemblages and manganese contents of the minerals increase with distance from the, contact zone of the Qianlishan granite stock. The manganese content of host rocks of the deposit is low, and the source of manganese in the skarn is supposed to be mainly from the hydrothermal solution associated with Yanshanian granite emplacement.
