HANDBOOK ON THE PHYSICS AND CHEMISTRY OF RARE EARTHS

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HANDBOOK ON THE PHYSICS AND CHEMISTRY OF RARE EARTHS ( handbook-onphysics-and-chemistry-rare-earths )

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TABLE 13 Characteristics of Typical Ion-Adsorption Type REE Deposits in Southern China—Cont’d Province or Region Deposits (County/City) Elevation REE Grade Recovery of Ion-Exchangeable REEs Thickness of Weathered Crusts Parent Rocks Accessory Minerals of Parent Rocks References Guangdong Province Wujingfu and Wufang (Jiexi and Jiedong Counties) <100 m 680–1800 ppm >60% Unknown Bt granite Unknown Zhang (1990), Lu (2008), and Yang and Xiao (2011) Datian (Gan County) <400 m Unknown >60% Unknown Datian Ms granite and Bt granite Apt, Grt, Zrn, Mnz, Xen, Frg, Exn, Fl, Ilm, and Mag(?). Deng (1988), Zhang (1990), and Wu et al. (1992, 1993b) Yangbu (Gan County) 200–300 m Unknown Unknown Ave$7m Yangbu Hlb- bearing Bt granite and porphyry Apt, Epi, Mag, Zrn, and Ttn. Zhao et al. (2012) Laishi (Xinfeng County) 100–200 m 680–1800 ppm (Ave $800 ppm) 80–90% Max30m Fogang (Hlb- bearing) Bt granite Aln, Ttn, Apt, Zrn, Mnz, Xen, Ilm, Rtl, Mag, and Smk Huang (1989), Li et al. (2007), Xu et al. (2007), Yang and Xiao (2011), and Xinfeng County (2014) Zhaibeiding (Ruyuan County) <300 m 680–1800 ppm (Ave $800 ppm) >70% Unknown Ms granite and Bt granite Grt, Frg, Gdn, RFC, Tur, Fl, Mnz, Smk, Xen, and Py Ma et al. (1991), Wu et al. (1990b, 1992, 1993b), Yang and Xiao (2011), and Ruyuan Yao Autonomous County (2014)

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