Abstract:The 3rd member of Paleoproterozoic Dashiqiao formation in Pianling, Xiuyan County, Eastern Liaoning can be subdivided into 6 lithologic layers, each of which has different characters of lithologic assemblage. The CaO/MgO ratio of carbonate rock is an indicator for sedimentary environment. With analysis on the characters of lithologic assemblage and the CaO/MgO ratio of each layer, it is inferred that the sedimentary environment of Late Dashiqiao age in Pianling area was evolved in the process of arid lagoon and closed bay-open shallow sea-shore-arid lagoon and close bay-shallow sea (occasionally intertidal zone or shore)-alternative of shore and shallow sea.
项才, 陈跃月, 曹洪亮, 刘敏. 辽宁岫岩县偏岭地区晚大石桥期沉积环境及构造古地理[J]. 地质与资源, 2008, 17(3): 166-169.
XIANG Cai, CHEN Yue-yue, CAO Hong-liang, LIU Min. SEDIMENTARY ENVIRONMENT AND TECTONO-PALEOGEOGRAPHY OF THE PALEOPROTEROZOIC DASHIQIAO FORMATION IN EASTERN LIAONING. GEOLOGY AND RESOURCES, 2008, 17(3): 166-169.