Kandil AT、El-Nagar WE、Kamal HM2、Younes AA 和 Mossa HH
???????????????Gabal Abu Furad ??????????????????????????26°37′ ?26°43′???33°36′ ?33°43′??????????????????????????????????????????? 40 g/l HCl ???8 ???????90°C ??? 1:5 (g/ml) ?????????????????????????????????????????? 10% ??? 20% ???????????????????????ESM??????????????????????????????10.05%?????????????????La (11.16%)??(39.97%)?Pr (6.21%)?Nd (13.99%)?Sm (2.00%) ?Gd (1.06%)?