Sulfide-melt inclusions in mantle xenoliths from Changbaishan Mt district, Jilin province, China

摘要

Mantle xenoliths are common in the Cenozoic basalts of the Changbaishan Mt. District, Jilin Province, China. The size of the xenoliths varies from a few centimeters to 10's of centimeters in diameter. The main xenolith type is spinel lherzolite, composing of olivine (50-70%), orthopyroxene (15-40%), clinopyroxene (5-20%) and small amount of spinel. The xenolith samples in this study were collected from three localities: 1) Eighteen spinel lherzolite samples from Erdaobaihe, the north slope of the Changbaishan (EDB); 2) Twenty spinel lherzolite xenolith samples from Wangqing, the upriver of Tumenjiang River to the East of the Changbaishan (WQ); 3) Fifteen samples in Pleistocene basalt from Huinan-Jingyu area (HN), the Longgang Hill of the west Changbaishan, are mostly spinel lherzolite, with small amount of orthopyroxenite.