| 再论基本层序、相分析在区域地层划分中的作用——以陆相民和盆地下白垩统河口群细分为例 |
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| 引用本文： | 蔡雄飞,陈斌,李长安,顾延生,占车生.再论基本层序、相分析在区域地层划分中的作用——以陆相民和盆地下白垩统河口群细分为例[J].地层学杂志,2002,26(3):230-234. |
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| 作者姓名： | 蔡雄飞 陈斌 李长安 顾延生 占车生 |
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| 作者单位： | 中国地质大学地球科学学院,湖北武汉,430074 |
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| 基金项目： | 地质矿产部区域地质调查项目，， |
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| 摘 要： | 甘肃民和盆地下白垩统河口群是一套厚度较大的复杂岩系 ,颜色、岩性特征仅具二分性 ,长期以来一直以群代组。经过基本层序和盆地相分析 ,河口群具有 4种不同类型的基本层序和不同的沉积相、作用相 ,这 4种不同类型的基本层序和环境相、作用相为盆地开裂、发展、萎缩、消亡不同阶段的产物 ,因而可以划分为 4个组。组的建立 ,给盆地分析带来便利。因而 ,基本层序、相分析是陆相地层划分不可忽视的方法
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| 关 键 词： | 基本层序 相分析 划分方法 民和盆地 甘肃 下白垩统 |
| 文章编号： | 0253-4959(2002)03-0230-05 |
| 修稿时间： | 2002年3月6日 |
FURTHER DISCUSSION ON THE FUNCTION OF BASIC SEQUENCE AND FACIES ANALYSIS IN THE REGIONAL STRATIGRAPHIC DIVISION--TAKE LOWER CRETACEOUS HEKOU GROUP IN MINGHE BASIN OF GANSU AS EXAMPLE |
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| CAI Xiong fei,CHEN Bin,LI Chang an,GU Yan sheng,and ZHAN Che sheng.FURTHER DISCUSSION ON THE FUNCTION OF BASIC SEQUENCE AND FACIES ANALYSIS IN THE REGIONAL STRATIGRAPHIC DIVISION--TAKE LOWER CRETACEOUS HEKOU GROUP IN MINGHE BASIN OF GANSU AS EXAMPLE[J].Journal of Stratigraphy,2002,26(3):230-234. |
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| Authors: | CAI Xiong fei CHEN Bin LI Chang an GU Yan sheng and ZHAN Che sheng |
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| Abstract: | Basic sequence and facies analysis are used widely in the division of marine and continental strata. The Lower Cretaceous Hekou Group in the Minghe Basin is a sequence of complex lithologic units with great thickness. It can be divided into two parts by the color and lithologic features and has been consi deried as a formation for a long time. The Hekou Group has four different kinds of basic sequences, environmental facies, depositional environments and functional facies. All these indicate the results respectively of the stages of basin′s disintegration, development, shrinkage and disappearance. The Hekou Group can be divided into four Formations. The establishment of the Formations offers great convenience for the analysis of the basin. The basic sequence and facies analysis are indispensable for the division of continental strata. |
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| Keywords: | basic sequence facies analysis Minghe Basin Gansu Lower Cretaceous |
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