**About the Editors**

## **Qingjie Gong**

Dr. Qingjie Gong is a professor and doctoral supervisor of geochemistry from China University of Geosciences (Beijing) and acts as the director of the committee of applied geochemistry, Chinese Society for Mineralogy, Petrology and Geochemistry (CSMPG); associate editor of the Applied Geochemistry journal hosted by the International Association of Geochemistry; and on the editorial board of the Acta Geoscientic Sinica journal hosted by Chinese Academy of Geological Sciences. They are an expert at geochemical exploration of metals and experimental geochemistry at high temperatures and pressures. Dr. Gong presents a weathering index of granite (WIG) to assess a sample's weathering degree, an empirical equation to describe trace element behaviors due to rock weathering and trace element backgrounds of normal geological materials, a method called seven levels' classification of geochemical anomaly to determine and classify geochemical anomalies based on backgrounds and cutoff grades of trace element, a promising concept called geochemical gene to discriminate and trace geological materials. Now, Dr. Gong has published nearly 100 papers in domestic and foreign journals and 7 monographs in Chinese and awarded 7 provincial and ministerial awards. In order to calculate geochemical backgrounds and anomaly levels, a software called GBAL was developed by Dr. Gong and another software called GGC to calculate geochemical gene codes and gene similarities of samples was also developed by Dr. Gong.

## **Zeming Shi**

Dr. Zeming Shi, (Post-doctoral) is a Full Professor II and doctoral supervisor. He is currently dean of the School of Earth Sciences at the Chengdu University of Technology (CDUT), China, head of the Applied Nuclear Techniques in Geosciences Key Laboratory of Sichuan Province, Academic and Technical Leader of Sichuan Province, the Tianfu famous teacher of Tianfu Qingcheng Plan, and the executive member of the Society of Chinese Mineralogy, Petrology and Geochemistry. He is mainly engaged in environmental geochemistry and mineral deposit geochemistry research and is responsible for more than 20 provincial and ministerial-level projects such as the National Natural Science Foundation of China (NSFC) and the National Key Research and Development Program of China (subprojects). He has published more than 100 academic papers, compiled 2 textbooks and published 3 monographs, and has been awarded 3 provincial and ministerial science and technology awards.
