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The Kulagangri Dome is located at the eastern part of the Himalayan metallogenic belt. Based on the 1 :50 000 mineral geological mapping and sparse surface engineering, the Gabo pegmatite-type lithium deposit was firstly found at the eastern part of the Kulagangri Dome. Ore-bearing spodumene pegmatite dikes are generally hosted by the marble in the middle unit of the dome, with length ranging from 1 m to 1 200 m, and width ranging from 0. 8 m to 40 m. The main lithium containing minerals in the spodumene pegmatite are spodumene, elbaite and lepidolite. At present, two main Li mineralization zones are controlled by 5 surface engineering. The mineralization zone I is about 2 km long, and includes 2 main orebodies (K1 and K2). The mineralization zone II is about 700 m long, and include one main orebody (K3). The K1 orebody is about 1 200 m long and 5 ~ 40 m thick, with an average thickness of about 20 m. The K2 and K3 orebodies occur as the large lenticular shape, with strike extension >100~600 m and thickness 15~50 m. The total thickness of K2 orebody is 45. 3 m. The average grade of Li2O, Rb2O and BeO is 1.11%, 0.064% and 0.047%, respectively. The newly discovered Gabo lithium deposit is dominated by Li, Be and Rb, associated with Nb, Ta, Cs, W and Sn. Based on the geological survey results, the Gabo lithium deposit is large in scale, and showing considerable potential for further prospecting in the area. The discovery of Gabo lithium deposit is another breakthrough in the exploration of rare metals in the Himalayan metallogenic belt, which is of great significant role in further understanding of the tectono-magmatic evolution and rare metal mineralization in the Cenozoic Himalaya, and further enriching the theory of collisional orogenesis and mineralization in the southern Qinghai-Tibet Plateau. [ABSTRACT FROM AUTHOR]

Abstract: Molecular simulation techniques have been adopted for the first time for understanding the structure–property relationships of three highly fluorinated polyamide–imide (PAI) isomers (6FDA/8p, 6FDA/8m and 6FDA/12p). The PAIs being considered in this work are based on 2,2-bis(3,4-decarboxy-phenyl) hexafluoropropane dianhydride (6FDA) and N,N-bis(amino-phenyl)-perfluoroalkane-α,ω-dicarboxamide diamines. The density, fractional free volume (FFV) and glass transition temperature (T g) of the PAIs are calculated to investigate the microstructure of the PAIs and the structural dependence of sorption and diffusion properties of CO2/CH4 pair. The 6FDA/8p and 6FDA/12p give both higher permeability and permselectivity than the 6FDA/8m because the rigid para-isomer functions as a molecular sieve. With a longer length of oligo(tetrafluoroethene) segment, the 6FDA/12p has permeability and selectivity greater than 6FDA/8p. Hence, this study may provide a guideline for designing PAI membranes to have desirable properties of permeability and permselectivity. [Copyright &y& Elsevier]