太原盆地边缘地貌与新构造运动及其意义
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摘要
应用构造地貌的观点 ,把太原盆地及其边缘地貌分为 :外围断块抬升山地、抬升轻微的丘陵台地、山前堆积的洪积倾斜平原和沉降堆积的冲积平原 4种地貌单元。通过对边缘地貌形态、地震活动特点、水系演变规律以及古河道发育、新生代沉积厚度等特征分析 ,太原盆地新构造运动的特点为 :(1)盆地西部上升强烈、东部隆起较弱。 (2 )在整体上升过程中 ,构成两个隆起中心。盆地西部以石千峰为隆起中心 ,向南隆起幅度减小 ;盆地东部以绵山为隆起中心 ,向北隆起幅度减小。 (3)整个盆地新构造运动具有中心对称性。此外还论述了边缘地貌、新构造断裂及古河道的控水作用及其在水文地质方面的应用
Based on the point of tectonic geomorphology,the geomorphology in and outside the Taiyuan Basin were divided into four geomorphologic units:periphery block rising mountain,slightly rising hill tableland,pluvial sedimentation plain,and alluvial sedimentation plain.By the analysis of edge geomorphol- ogy,landscape,earthquake characteristics,change of river system and developing feature of paleochannel, deposit depth of stratum in cenozoic,the neotectonic movement characteristics in Taiyuan Basin were as follows:rising intensely in western basin and slightly in eastern basin;on the whole rising course there were two rising centers;one was Shiqiangfeng in the northwest,the other is Mian Mountain in the south- east;the neotectonic movement in Taiyuan Basin showed a regularity of central symmetry.Moreover,the use of tectonic geomorphology and neotectonic movementin hydrology were discussed.
Based on the point of tectonic geomorphology,the geomorphology in and outside the Taiyuan Basin were divided into four geomorphologic units:periphery block rising mountain,slightly rising hill tableland,pluvial sedimentation plain,and alluvial sedimentation plain.By the analysis of edge geomorphol- ogy,landscape,earthquake characteristics,change of river system and developing feature of paleochannel, deposit depth of stratum in cenozoic,the neotectonic movement characteristics in Taiyuan Basin were as follows:rising intensely in western basin and slightly in eastern basin;on the whole rising course there were two rising centers;one was Shiqiangfeng in the northwest,the other is Mian Mountain in the south- east;the neotectonic movement in Taiyuan Basin showed a regularity of central symmetry.Moreover,the use of tectonic geomorphology and neotectonic movementin hydrology were discussed.
引文
[1] 楼桐茂 ,杜榕桓 .山西汾河的地堑水系演变的初步观察 [J].地理学报 ,196 0 ,2 6 (3) :15 4- 16 4.
[2 ] 《太原西山水源保护研究》编写组 .城市水源保护 [M].北京 :中国环境科学出版社 ,1990 .5 5 - 79.
[3] 张英泉 .山西断陷盆地边缘地貌、新构造运动特征和水文地质条件 [A].中国地理学会第一次构造地貌学术讨论会论文选集 [C].北京 :科学出版杜 ,1984.99- 10 2 .
[4] 王进宝 .山西高原裂隙水富集特征 [J].太原工学院学报 ,1982 ,15 (3) :2 5 - 2 9.
[2 ] 《太原西山水源保护研究》编写组 .城市水源保护 [M].北京 :中国环境科学出版社 ,1990 .5 5 - 79.
[3] 张英泉 .山西断陷盆地边缘地貌、新构造运动特征和水文地质条件 [A].中国地理学会第一次构造地貌学术讨论会论文选集 [C].北京 :科学出版杜 ,1984.99- 10 2 .
[4] 王进宝 .山西高原裂隙水富集特征 [J].太原工学院学报 ,1982 ,15 (3) :2 5 - 2 9.
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