Mozbaysay mafic–ultramafic complex, Yizhou District, Hami Prefecture (Kumul Prefecture; Qumul Prefecture), Xinjiang, Chinai

Regional Level Types
Mozbaysay mafic–ultramafic complex	Complex
Yizhou District	County
Hami Prefecture (Kumul Prefecture; Qumul Prefecture)	Prefecture-level City
Xinjiang	Autonomous Region
China	Country

The Mozbaysay mafic–ultramafic complex is exposed in the Qijiaojing–Balikun area in the northeast margin of the Turpan Hami basin, NTB (Figure 2), is a component of the Late Carboniferous to Early Permian mantle-derived magmatic rock belt around the Turpan basin [38]. This complex consists of three individual bodies of different sizes, which are spatially distributed in a nearly east–west direction (Figure 2). The country rocks of this complex are volcano-sedimentary rocks of the Early Carboniferous Jiangbasitao Formation (C1j) and Late Carboniferous Qijiaojing Formation (C2q). The intrusive boundary is characterized by a hornfelsization belt. In addition, these complexes display a ring-shaped feature in space. The outer zone mainly consists of grayish-black to grayish-green hornblende gabbros, with an exposure width of 100–500 m and 1 km at most. The core part is composed of grayish-black lherzolites, with a short axis of 300–400 m and a long axis of more than 3 km. These two rock types are in transitional contact without obvious boundaries. Banded rhythmic structures can be seen at the margin of the lherzolite plutons, with a spacing of approximately 4 cm. The characteristics mentioned above may suggest the emplacement of en-echelon intrusions formed by deformation and diapir-like upward expulsion of a layered complex.

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References