| 中天山马鞍桥石炭纪沉积特征及构造意义 |
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| 引用本文： | 殷勇,董玉珊,高长林,江建春,范小林.中天山马鞍桥石炭纪沉积特征及构造意义[J].沉积学报,2000,18(1):100-106. |
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| 作者姓名： | 殷勇 董玉珊 高长林 江建春 范小林 |
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| 作者单位： | 1.中国地质大学 北京 100083; |
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| 基金项目： | ：国家85重点攻关项目85-101-02-01-01部分成果 |
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| 摘 要： | 出露于中天山马鞍桥、巴仑台北的石炭纪地层属于大塘阶晚期至威宁期碳酸盐和碎屑岩的混合沉积。沉积特征和微量元素标志显示该套地层主体为潮坪-泻湖相沉积,仅顶部为河湖相沉积。砂岩的元素地球化学特征以及骨架颗粒的百分含量均显示,该套地层的蚀源区为岛弧火山岩系和中酸性花岗岩系的中天山微板块。有足够的证据表明该套地层形成于中天山微板块与南天山弧后盆地碰撞的挤压背景,即前陆盆地中,构造和海平面变化是该套充填物的主要控制因素。
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| 关 键 词： | 石炭系 潮坪- 泻湖相 前陆盆地 元素地球化学组成 骨架砂岩 |
| 文章编号： | 1000-0550(2000)01-0100-07 |
| 收稿时间： | 1998-11-17 |
| 修稿时间： | 1998-11-17 |
Depositional Characteristics of Carboniferous and Its Tectonic Significance in Maanqiao Area, Middle Tianshan |
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| YIN Yong,DONG Yu-shan,GAO Chang-lin,JIANG Jian-chun,FAN Xiao-lin.Depositional Characteristics of Carboniferous and Its Tectonic Significance in Maanqiao Area, Middle Tianshan[J].Acta Sedimentologica Sinica,2000,18(1):100-106. |
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| Authors: | YIN Yong DONG Yu-shan GAO Chang-lin JIANG Jian-chun FAN Xiao-lin |
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| Institution: | 1.China University of Geosciences,Beijing 100083;2.Institute of Experimental Petroleum,China New Star Petroleum Corporation,Wuxi Jiangsu 214151 |
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| Abstract: | The Carboniferous strata outcropped in Maanqiao and
northern Baluntai area in Middle Tianshan include Maanqiao Formation (late Datang stage)
and Sangshuyuan Formation (Weining stage).The strata belong to the mixed sediments of
carbonate and clastic rocks. Maanqiao Formation, most of which is carbonate tidal-flat
facies, consists of two depositional cycles. Cycle one shows peritidal cycle, but cycle
two shows intertidal-subtidal cycle, which indicate a deepening of sea water from cycle
one to cycle two. The Sangshuyuan Formation is composed of three depositional cycles,
which mainly show subtidal cycles. The fluvial and lacustrine facies on the top of
Sangshuyuan Formation indicates the retreating of sea water. |
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| Keywords: | Carboniferous tidal-flat and lagoon facies major element and trace element composition framework grain foreland basin |
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