TY - Journal of Geographical Sciences A1 - ZHU Cheng, JIANG Fengqing, MA Chunmei, XU Weifeng, HUANG Linyan, ZHENG Chaogui, LI Lan, SUN Zhibin T1 - Rise and decline of ancient salt industry revealed by Na and Ca concentrations in sediments at Zhongba site, Chongqing Y1 - 2008-09-25 JF - Journal of Geographical Sciences JO - Journal of Geographical Sciences SP - 328 EP - 340 VL - 18 IS - 3 UR - http://www.geogsci.com N1 - 10.1007/s11442-008-0328-6 ER -