Author(s)

Munkhtsengel Baatar, Gerel Ochir, Jindrich Kynicky, Shigeru Iizumi, Piero Comin-Chiaramonti

Department of Geology and Pedology, Mendel University, Brno, Czech Republic.
Department of Geology, Mongolian University of Science & Technology, Ulaanbaatar, Mongolia.
Department of Geosciences, Shimane University, Matsue, Japan.
Department of Mathematics and Geosciences, Trieste University, Trieste, Italy.

Volcanic-plutonic alkaline complexes from Lugiin Gol, Mushgai Khudag and Bayan Khoshuu, southern Mongolia (244, 139 and 131 Ma, respectively) occur within grabens in E-W lineaments. They are represented by syenitic rock-types (silica undersaturated to slightly silica oversaturated) potassic rocks and are associated to stockworks of carbonatitic veins, dykes and so on. Geochemical characteristics and isotope systematics point to a veined mantle source particularly enriched in LILE and LREE. The carbonatitic veins show high contents of Ba, Sr, Th and REE and are suitable as potential ore deposits.

Mongolia; Alkaline Complexes; Carbonatites; REE Deposits

M. Baatar, G. Ochir, J. Kynicky, S. Iizumi and P. Comin-Chiaramonti, "Some Notes on the Lugiin Gol, Mushgai Khudag and Bayan Khoshuu Alkaline Complexes, Southern Mongolia," International Journal of Geosciences, Vol. 4 No. 8, 2013, pp. 1200-1214. doi: 10.4236/ijg.2013.48114.