Wang Jianghai,Guangzhou Institute of New Geological Technology,Academia Sinica,Guangzhou,GuangdongYang Wenhua and Wu Jinping China U niversity of Geosciences,W uhan,Hubei Jiang M inxi
Du Andao,He Hongliao,Yin Ningwan,Zou Xiaoqiu,Sun Yali,Sun Dezhong,Chen Shaozhen and Qu Wenjun Institute of Rock and Mineral Analysis,Chinese Academy of Geological Sciences,Beijing Fei Zhenbi
Zhong NingningJianghan Petroleum Institute,Shashi City,Hubei and Cao DaiyongBeijing Graduate School,China University of Mining and Technology,Beijing Jiang Minxi
Chaolunbagen,Hetai and Liu TingxiDept. of Water Conservancy,Inner M ongolia College of Agriculture and Animal Husbandry,Hohhot,Nei M ongol Shang Ruoyun
