| 普若岗日冰原西侧及念青唐古拉山西坡侧碛垄形态差异及气候构造成因 |
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| 引用本文： | 邱祝礼,李海兵,易朝路,傅平,董国成,陈华亮.普若岗日冰原西侧及念青唐古拉山西坡侧碛垄形态差异及气候构造成因[J].岩石学报,2008,24(7). |
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| 作者姓名： | 邱祝礼 李海兵 易朝路 傅平 董国成 陈华亮 |
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| 作者单位： | 1. 中国地质科学院地质研究所国土资源部大陆动力学重点实验室,北京,100037
2. 中国科学院青藏高原研究所,北京,100095 |
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| 基金项目： | 中国地质调查局地调研究项目 |
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| 摘 要： | 冰碛垄的几何学特征反应了它形成时的各种影响因素,包括构造状况、气候条件.而对冰碛垄进行高程测量,并应用数值模拟技术反演其形态,可以荻取高度、坡度、坡向等数据进行分析.文中应用该方法对青藏高原腹地普若岗日冰原一条侧碛垄以及东南部念青唐古拉山西端南坡的三条侧碛垄进行处理,结果表明普若岗日的侧碛垄规模比念青唐古拉山的侧碛垄规模小得多,普若岗日处侧碛垄的坡度也较缓,且坡向数据表明侧碛垄几何性质不对称.结合气候、构造等资料对它们的形态学参数进行对比分析表明,气候是造成两地侧碛垄规模差异的主要原因,坡度的差异受气候与构造双重作用影响.从两地坡度的差异可以推导出念青唐古拉山侧碛垄的形成年代比普若岗日地区的要晚.根据普若岗日侧碛垄几何性质的不对称,结合遥感资料解译,判断该区末次冰期以来有正断层活动,断层面倾向北,上盘在南边.
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| 关 键 词： | 冰碛垄 气候 构造 数值模拟 念青唐古拉山 普若岗日 |
Difference of topographical features of lateral moraines between Puruogangri ice field and west Nyainqentanghula Sham glacier and its climatic and tectonic causes |
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| QIU ZhuLi,LI HaiBing,YI ChaoLu,FU Ping,DONG GUOCheng,CHEN HuaLiang.Difference of topographical features of lateral moraines between Puruogangri ice field and west Nyainqentanghula Sham glacier and its climatic and tectonic causes[J].Acta Petrologica Sinica,2008,24(7). |
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| Authors: | QIU ZhuLi LI HaiBing YI ChaoLu FU Ping DONG GUOCheng CHEN HuaLiang |
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| Abstract: | Different geometric features of moraines are the result of many factors during their formation,such as tectonics and climate.However,measurements of elevations of such moraines,following with numeric modeling,can help us attain such data as elevation,slope,and aspect of these moraines.Here the author treats one lateral moraine in Puruogangri,central of the Qinghai-Tibet plateau,and two others in Nyainqentanghula Shan,southeast of the Qinghai-Tibet plateau.The results imply that the scale of moraine in Puruo... |
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| Keywords: | Moraine Climate Tectonics Numerical model Nyainqentanghula Shan Puruogangri |
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