Distribution of hematite and goethite in Chinese and African deserts as determined by visible reflectance spectroscopy

Junfeng Ji, Nanjing University, School of Earth Sciences and Engineering, Nanjing, China, Xiaoyong Long, Southwest University, Chongqing, China, Wancang Zhao, Nanjing University, Nanjing, China and William Balsam, Dartmouth College, Department of Earth Sciences, Hanover, NH, United States