国家自然科学基金41001248,41404027;中国地质调查局1212011220106,12120115063201;智能地学信息处理湖北省重点实验室开放研究课题KLIGIP201605.The National Natural Science Foundation of China,Nos.41001248,41404027;the China Geological Survey project,Nos.1212011220106,12120115063201;the Open Research Project of The Hubei Key Laboratory of Intelligent Geo-Information Processing,No.KLIGIP201605