中核集团“龙腾2020”LTD1601-3;中国核工业地质局项目201586;青年科技创新团队项目地HQX1601;国家973项目编号:2015CB453004联合资助.[Co-funded by the CNNC Longteng 2020LTD1601-3;China Nuclear Geology201586;Youth science and technology innovation team projectHQX1601;the National Basic Research Program of China 973 ProgramNo.2015CB453004]