从旋回的有序叠加形式到层序的识别和划分:层序地层学进展之三*
From vertical stacking pattern of cycles to discerning and division of sequences: The third advance in sequence stratigraphy
Mei Mingxiang
从旋回的有序叠加形式到层序的识别和划分:层序地层学进展之三* |
| 梅冥相 |
From vertical stacking pattern of cycles to discerning and division of sequences: The third advance in sequence stratigraphy |
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Mei Mingxiang
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| 北京西山下苇甸剖面寒武系张夏组中的旋回和层序的界面（A—张夏组顶部的层序界面(箭头所指;28层之顶),被崮山组底部深缓坡至陆棚相夹条带状灰岩透镜体的钙质泥岩直接覆盖而显示出淹没不整合型层序界面的特征;B—张夏组第1个四级亚层序的顶界面(箭头所指;21层之顶),浅缓坡相含鲕粒泥粒灰岩直接被陆棚相钙质泥岩覆盖,也表现为突然加深的淹没不整合型界面的特点;C—张夏组上部(27层中部)薄层深缓坡相 泥灰岩或陆棚相钙质泥岩与块状鲕粒灰岩构成的潮下型米级旋回(粗箭头所示);各层的地层位置见 图4 ） |
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