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断陷湖盆差异湖侵过程与层序格架下沉积体系特征响应: 以霸县凹陷古近系沙河街组为例*
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张自力1,2, 朱筱敏1,2, 李琦3, 张锐锋4, 耿荣燕4, 曹兰柱4, 施瑞生1,2 |
Differential transgression of rift basin and characteristic response of sedimentary system within sequence framework: An example from the Paleogene Shahejie Formation in Baxian sag, Bohai Bay Basin
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Zhang Zi-Li 1,2, Zhu Xiao-Min 1,2, Li Qi 3, Zhang Rui-Feng 4, Geng Rong-Yan 4, Cao Lan-Zhu 4, Shi Rui-Sheng 1,2
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霸县凹陷古近系沙河街组三段三角洲沉积典型岩相及沉积构造 a—含泥砾粗砂岩,扇三角洲前缘水下分支河道,CS2,3720.17~3726.47 m;b—冲刷面,扇三角洲前缘水下分支河道,CS2,3720.17~3726.47 m;c—同生变形构造,三角洲前缘河口坝底部,M14,4088.6~4096.6 m;d—爬升纹层砂岩,三角洲前缘河口坝,M14,4088.6~4096.6 m;e—含螺泥岩,三角洲前缘支流间湾,W72,2555.15 m;f—波状层理、虫孔,三角洲前缘支流间湾,W83,2581.25 m; g—包卷层理,三角洲前缘席状砂,W83,2758.05~2765.6 m |
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