Biomarkers of bauxite-bearing strata and its geological significance in Wuchuan-Zheng′an-Daozhen area，northern Guizhou Province
Yu Wenchao, Du Yuansheng, Zhou Qi, Jin Zhongguo, Wang Xiaomei, Qin Yongjun
JOURNAL OF PALAEOGEOGRAPHY . 2012, (5): 651 -662 .  DOI: 10.7605/gdlxb.2012.05.010