- 责任者：Ling Jinlan (College of Earth Science and Recourses ; Chang’an University ; Xi’an 710054 ; China) ; Xia Mingzhe
- 刊名：Geochimica
- 出版年：2011
- 卷期：40(6)
- 关键词：镁铁质岩 ; mafic rocks ; 超镁铁质岩 ; ultramafics ; 新疆 ; Xinjiang
- 页码：p.499-515
- 图表：8 illus., 3 tables, 43 refs.
- 分类号：0801
- issnNo：ISSN0379-1726
- isbnNo：CN44-1398/P
Lens shaped Luodong mafic-ultramafic intrusion lies in Beishan region of Xinjiang in northeastern Tarim Plate and covers an area of 2.1 km2. It consists of dunite, wehrlite, plagio-lherzolite, olivine websterite, peridotite pyroxenite, troctolite, olivine gabbro, gabbro, noritegabbro and leucogabbro. The Luodong intrusion is a layered intrusion with obvious cumulus textures and rhythmics. The geochemical feature indicates weak crustal contamination. OIB-like Nd, Sr isotopic compositions and high temperature picritic primary magma indicate that Luodong intrusion may have an affinity with mantle plume and be formed by partial melting of axis plume. The Early Permain mantle-derived magmatic rocks in Northeastern Tarim Plate are thus a part of Tarim large igneous province.