珠江口盆地白云凹陷裂陷期沉积环境演化与控烃作用

谢世文,柳保军,庞雄,丁琳,吴宇翔,刘冬青,王宇辰

Sedimentary environment evolution and hydrocarbon control in Baiyun Sag of Pearl River Mouth Basin during rifting period

Shiwen XIE,Baojun LIU,Xiong PANG,Lin DING,Yuxiang WU,Dongqing LIU,Yucheng WANG

图11 白云凹陷裂陷期文昌组—恩平组湖盆水体古环境恢复无机元素判别图版 (a)、(b)古盐度恢复参数，Rb/K中位数恩平组为0.005 4、文昌组为0.004 1，Sr/Ba中位数恩平组为0.124、文昌组为0.064；(c)、(d)古水深恢复参数，Mn/Fe中位数恩平组为0.013 5、文昌组为0.014 9，m值中位数恩平组为9.261、文昌组为8.022；(e)、(f)古氧相恢复参数，Cu/Zn中位数恩平组为0.237、文昌组为0.227，Th/U中位数恩平组为5.115、文昌组为4.904；(g)、(h)古气候恢复参数，Rb/Sr中位数恩平组为0.509、文昌组为2.047，Sr/Cu中位数恩平组为9.787、文昌组为3.167

Fig.11 Chart of paleoenvironment restoration for Wenchang and Enping formations during rifting period in Baiyun Sag