Funding for this research was provided by:
National Natural Science Foundation of China (No. 41372341)
the Opening Fund of Key Laboratory of Geological Survey and Evaluation of Ministry of Education (GLAB2020ZR02)
the Fundamental Research Funds for the Central Universities
National Key Research and Development Program of China (No. 2018YFC1505403)
Article History
Received: 9 April 2020
Accepted: 24 August 2020
First Online: 3 September 2020
Compliance with ethical standards
:
: The authors declare no conflicts of interest.