| 吐哈盆地西南缘水西沟群古气候演变特征及其层序地层学意义 |
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| 引用本文： | 吴伯林,徐高中.吐哈盆地西南缘水西沟群古气候演变特征及其层序地层学意义[J].华东地质学院学报,2004,27(2):135-140. |
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| 作者姓名： | 吴伯林 徐高中 |
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| 作者单位： | [1]西北大学地质系，陕西西安710069 [2]中国核工业地质局203研究所，陕西咸阳712000 |
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| 基金项目： | 科技部国家科技攻关项目 (2 0 0 1BA60 9A - 0 7- 1 3)资助成果 |
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| 摘 要： | 通过对水西沟群(J1-2sh)古植物、古孢粉化石组合特征等系统的研究，对八道湾组(J1b)、三工河组(J1s)、西山窑组(J1x)古气候类型进行了区分；并据此认为西山窑组(J1x)为一套气候地层层序，相应划分为四个体系域：即低水位、湖泊扩张，高水位及湖泊收缩体系域。再结合一些岩性岩相等特殊标志，对十红滩东部外围地层层序进行了划分，结果与十红滩矿区地层层序本质是一致的。
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| 关 键 词： | 吐哈盆地 古植物化石 古气候 层序地层学 古孢粉化石 |
| 文章编号： | 1000-2251(2004)02-135-06 |
| 修稿时间： | 2003年3月7日 |
Evolution Feature of Palaeoclimate and Significance of Sequence Stratigraphy in Suixigou Group in the Southwest Edge of Turpan-Ham Basin |
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| WU Bo-lin.Evolution Feature of Palaeoclimate and Significance of Sequence Stratigraphy in Suixigou Group in the Southwest Edge of Turpan-Ham Basin[J].Journal of East China Geological Institute,2004,27(2):135-140. |
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| Authors: | WU Bo-lin |
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| Abstract: | Through systematic study on plant fossils and sporomorph in the Suixigou Group(J_(1-2)sh),the paleoclimate types are distinguished between Badaowan Group(J_1b),Sangonghe Group(J_1s) and Xishanyao Group(J_2x).According to this,it is thought that the Xishanyao Group represents a set of climate straigraphic sequences. Accordingly four typse of system domains are divided: low-water-level domain, lake-expanding domain, high-water-level domain and lake-shringking domain. In coordination with some other special lithofacies distinguishing marks, stratigraphic sequences are divided in the east outer circles of Shihongtan mineral district, and the result is the same with Shihongtan district. |
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| Keywords: | Turpan-Hami basin plant fossil sporomorph palaeoclimate evolution sequence stratigraphy climate stratigraphic sequence |
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