渤海莱州湾凹陷南部古近系混合沉积特征及发育模式* |
刘文超 , 张国坤, 杨宏飞, 柳佳期, 吕世聪 |
Characteristics and development model of mixed deposits of the Paleogene in southern Laizhou Bay sag,Bohai Sea |
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Liu Wen-Chao
, Zhang Guo-Kun, Yang Hong-Fei, Liu Jia-Qi, Lü Shi-Cong |
| 渤海莱州湾凹陷南部缓坡带沙三下亚段混合沉积特征 a—灰质粉砂岩,1井,1141.0im,E2 s 3 l Ⅲ油组,井壁取心;b—灰质泥岩,1井,1099.0im,E2 s 3 l Ⅱ油组,井壁取心;c—泥质灰岩,具水平层理,9井,1541.0im,E2 s 3 l Ⅲ油组,井壁取心;d—含生物碎屑鲕粒细砂岩,生物碎屑为介形虫和腹足类,鲕粒为表鲕,8井,1182.7im,E2 s 3 l Ⅰ油组,单片光;e—含生物碎屑细砂岩,生物碎屑为螺和生物碎片,2井,1126.5im,E2 s 3 l Ⅱ油组,正交光;f—粉砂灰质云岩,陆源碎屑均匀散落于泥晶碳酸盐岩间,1井,1089.0im,E2 s 3 l Ⅱ油组,单偏光;g—泥晶云岩,泥晶方解石与泥质混杂分布,8井,1249.5im,E2 s 3 l Ⅱ油组,单偏光;h—陆屑泥晶白云岩,陆源碎屑与泥晶白云石相间分布,9井,1541.0im,E2 s 3 l Ⅲ油组,正交光;i—纹层状泥灰岩,泥晶方解石与泥质呈条带状分布,8井,1260.0im,E2 s 3 l Ⅲ油组,单片光 |
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