| Citation: | YAO Yuzeng, LI Lixing, FU Jianfei, LI Houmin, GUO Rongrong, LIU Jing, WANG Qian. 2023. Geochronological constraints on Early Precambrian granitic pegmatite type Nb-Ta mineralization of the Lijiapuzi deposit in North China craton. Geological Bulletin of China, 42(6): 1047-1049. doi: 10.12097/j.issn.1671-2552.2023.06.015 |
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Simplified geological map of the Lijiapuzi Nb-Ta deposit of Xinbin City in Liaoning Province (a), hand specimen photographs of Nb-Ta mineralized granitic pegmatite of sample LJP-12 and LJP-4 (b, c), photomicrographs showing the occurrence state of coltan (d, e) and Tera-Wasserburg concordia plot of U-Pb data of sample LJP-12 and LJP-4 (f, g)