地质学报2011，Vol.85Issue(6)：987-992,6.DOI:11-1951/P.20110517.1012.012
辽西上白垩统义县组湖相碳酸盐岩碳氧稳定同位素组成及其沉积环境
The Carbon and Oxygen Stable Isotopic Compositions and Sedimentary Environment of the Lacustrine Carbonate from the Upper Cretaceous Yixian Formation, Western Liaoning, NE China
摘要
Abstract
The lacustrine sedimentary environment of the Yixian Basin hosting the Jehol Group was discussed using the detailed carbon and oxygen stable isotope compositions of lacustrine carbonatic rock from the Upper Cretaceous Yixian Formation, Yixian, western Liaoning, NE China. The δ13C and δ18O values of the lacustrine carbonatic rock range from -4. 825% to 6. 870% and from 16. 190% to - 7. 143%, respectively. The result indicates that the hydrological characteristics tended to be closure, relatively hot and dry paleoclimate, resulting high salinity and temperature. Therefore, volcanic activity may be a key factor affecting hydrological condition and regional climate.关键词
湖相碳酸盐岩/碳氧同位素/沉积环境/上白垩统/义县组Key words
lacustrine carbonatic rock/ carbon and oxygen stable isotope/ sedimentary environment/ Upper Cretaceous/ Yixian Formation引用本文复制引用
陈登辉,巩恩普,梁俊红,陈晓红..辽西上白垩统义县组湖相碳酸盐岩碳氧稳定同位素组成及其沉积环境[J].地质学报,2011,85(6):987-992,6.基金项目
教育部高等学校博士学科点专项科研基金(编号20060145016)资助成果. （编号20060145016）
