| 河西走廊榆木山前土壤发育特征及其随时间(年代)的演变关系 |
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| 引用本文： | 邢成超,孙忠.河西走廊榆木山前土壤发育特征及其随时间(年代)的演变关系[J].地震地质,1998,20(1):83-90. |
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| 作者姓名： | 邢成超 孙忠 |
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| 作者单位： | [1]国家地震局兰州地震研究所 [2]中国科学院兰州沙漠研究所 |
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| 摘 要： | 在河西走廊榆木山前开展了旨在用于活动构造测年工作的土壤发育年代学方法的研究。通过在不同时代河流阶地上开挖土壤探槽、系统采集土壤样品并进行化学成分分析，以及对各级河流阶地形成年代的１４Ｃ和热释光年龄测定，详细研究了本区与断层新活动有关的土壤发育的主要物理和化学特性及其随时间（年代）的演变规律，初步建立起了土壤ＣａＣＯ３含量和ＣａＣＯ３累积指数与发育年代的定量计算关系式。经回检和对比分析认为，所建定量计算关系式可试用于同类地区活动断层的测年工作
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| 关 键 词： | 河西走廊 活动断层 碳－14年龄测定 热释光法 土壤发育 |
SOIL DEVELOPMENT PROPERTIES AND THEIR EVOLUTION WITH TIME (AGE) IN THE FORELAND REGION OF THE YUMUSHAN MOUNTAINS OF HEXI CORRIDOR |
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| Xing Chengqi,Lu Dehui,Dong Zhiping.SOIL DEVELOPMENT PROPERTIES AND THEIR EVOLUTION WITH TIME (AGE) IN THE FORELAND REGION OF THE YUMUSHAN MOUNTAINS OF HEXI CORRIDOR[J].Seismology and Geology,1998,20(1):83-90. |
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| Authors: | Xing Chengqi Lu Dehui Dong Zhiping |
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| Abstract: | In this paper, the primary physical and chemical characteristics of the soil development related to Quaternary faults in the foreland region of the Yumushan mountains of the Hexi corridor, and their evolution with age have been investigated and analyzed. In six well drained soils formed in loess and alluvial proluvial parent materials of various ages (their formation ages are 5 000 to 38 000a ago) in this region, calcium carbonate content obviously increases with age, and so does calcium carbonate accumul |
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| Keywords: | Hexi corridor Active fault Carbon 14 dating Thermolumincscent method Soil development |
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