| 准层序、岩性变换带在陆相红盆中的应用——以民和盆地1∶5万红古城、新寺乡幅的白垩纪地层为例 |
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| 引用本文： | 蔡雄飞,李长安,顾延生.准层序、岩性变换带在陆相红盆中的应用——以民和盆地1∶5万红古城、新寺乡幅的白垩纪地层为例[J].沉积与特提斯地质,1999,19(6):37-43. |
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| 作者姓名： | 蔡雄飞 李长安 顾延生 |
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| 作者单位： | 中国地质大学, 湖北 武汉 430074 |
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| 摘 要： | 陆相红盆与海相盆地在层序地层的基本单元和沉积作用等方面存在巨大差异。层序地层的基本概念,基本理论具体在陆相盆地中的作用,应紧密结合陆相分地自身的发育特点,创造了一套真正适合于陆相盆地层序地层学的概念和模式。陆相地层与海相地层相比规律性不明显,“层板对比”模式不适合陆相盆地地层分布实际。
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| 关 键 词： | 陆相红盆 准层序组 岩性变换带 白垩纪 地层 |
| 收稿时间： | 1999/7/26 0:00:00 |
Applications of parasequences and lithologic zones to continental red basins:an example from the Cretaceous strata in the Honggucheng and Xinsixiang regions of the Minhe Basin |
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| CAI Xiong-fei,LI Chang-an,GU Yan-sheng.Applications of parasequences and lithologic zones to continental red basins:an example from the Cretaceous strata in the Honggucheng and Xinsixiang regions of the Minhe Basin[J].Sedimentary Geology and Tethyan Geology,1999,19(6):37-43. |
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| Authors: | CAI Xiong-fei LI Chang-an GU Yan-sheng |
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| Affiliation: | China University of Geosciences, Wuhan, 430074, China |
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| Abstract: | There are gaps in basic units of sequence stratigraphy and sedimentation in both continental red basins and marine basins.The continental strata are always vertically persistent,but inextensive laterally.In this respect,the "strata-plate correlation" model should not be adaptable to continental strata.Caution should be exercised in the application of the fund-mental concepts and theories about sequence stratigraphy of marine strata to continental strata. A parasequence is a relatively conformable succession of genetically related beds or bedsets bounded by marine-flooding surfaces and their correlative surfaces.It represents several stages of initiation,culmination and waning of fluvial event deposition,and therefore may act as a basic element of a parasequence set.A parasequence set is a succession of genetically related parasequences which form a distinctive stacking pattern that is bounded,in many cases,by major marine-flooding surface and their correlative surfaces.Its tectonic settings and sedimentation always remain unchanged throughout an event cycle.The study of the Cretaceous strata in the Honggucheng and Xinsixiang regions of the Minhe Basin was conducted with the aid of parasequences,parasequence sets and lithologic zones,which may make it possible to study the horizontally separated strata in the division and correlation of regional strata in continental basins. |
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| Keywords: | continental red basin parasequence set lithologic zone Minhe Basin Lower Cretaceous |
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