| 贵阳花溪地区下中三叠统露头层序地层研究 |
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| 引用本文： | 时国,田景春,喻美艺.贵阳花溪地区下中三叠统露头层序地层研究[J].沉积与特提斯地质,2010,30(1):11-17. |
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| 作者姓名： | 时国 田景春 喻美艺 |
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| 作者单位： | 1. 成都理工大学,沉积地质研究院,四川,成都,610059
2. 贵州大学,资源与环境工程学院,贵州,贵阳,550003 |
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| 摘 要： | 贵阳花溪地区下、中三叠统可划分为碳酸盐台地相、台缘相和盆地相三个沉积相区。在对不同相区内典型剖面详细观测、层序界面识别基础上,将下、中三叠统划分为5个Ⅰ型沉积层序和1个Ⅱ型层序。通过研究实测剖面纵向的沉积相变和横向低位岩楔的位置迁移,讨论了区内相对海平面变化。研究区在早-中三叠世经历了一次完整的二级海平面升降旋回:早三叠世与全球海平面变化基本一致,呈上升趋势;中三叠世由于构造作用,海平面总体呈下降趋势,表现出区域特殊性。
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| 关 键 词： | 层序地层 下 中三叠统 碳酸盐岩 贵阳 |
Outcrop sequence stratigraphy of the Middle-Lower Triassic strata in the Huaxi region,Guiyang,Guizhou |
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| SHI Guo,TIAN Jing-chun,YU Mei-yi.Outcrop sequence stratigraphy of the Middle-Lower Triassic strata in the Huaxi region,Guiyang,Guizhou[J].Sedimentary Geology and Tethyan Geology,2010,30(1):11-17. |
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| Authors: | SHI Guo TIAN Jing-chun YU Mei-yi |
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| Institution: | 1. Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, Sichuan, China; 2. School of Resources and Environmental Engineering, Guizhou University, Guiyang 550003, Guizhou ; China) |
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| Abstract: | The Middle -Lower Triassic strata in the Huaxi region, Guiyang, Guizhou are assigned to three sedimentary facies： carbonate platform, platform-margin and basin facies, including five type I and one type II depositional sequences. The study area once experienced a complete second-order cycle of sea-level fluctuation during the Early - Middle Triassic ： a rising trend during the Early Triassic and a falling trend due to the effects of regional tectonic movement during the Middle Triassic. |
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| Keywords: | sequence stratigraphy Middle - Lower Triassic carbonate rock Guiyang |
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