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Active Tectonic Signs of Taftan Mountain (South Eastern of Iran)
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作者 Mohsen Jami Ali Solgi +1 位作者 Mohsen Pourkermani Ali Asghar Moridi Farimani 《Open Journal of Geology》 2015年第9期637-648,共12页
This area, 12585.84 Km2, is located around Taftan Mountain in the east of Iran. It lies between latitudes 27°51' and 29°30'N, and longitudes 60°19' and 61°43'E. It has been studied ... This area, 12585.84 Km2, is located around Taftan Mountain in the east of Iran. It lies between latitudes 27°51' and 29°30'N, and longitudes 60°19' and 61°43'E. It has been studied on quantitative and qualitative morphometric and other active tectonic indices including symmetry of drainage basin (Asymmetry Factor), symmetry of latitudinal topography and sinuosity of main front. It is founded that relative active tectonic levels have been categorized in three groups: high, low and middle. Finally, all indices have been integrated with desert relations. Then the relative active tectonic level in area of 3-B is high;it is middle in the areas and sub-areas 1 of 1-B, 1-C, 1-D, 1-E, 3-A, 3-B, 4-A, 4-C, 5-A, 5-B, 9-A, 9-B and 9-C and it is low in sub-areas of 1-C and 9-A. The relative active tectonic levels in the east and south eastern areas where Mirjaveh and Khash cities are located are higher than other areas. Tectonic actions of the areas and sub-areas have been matched with structural elements. 展开更多
关键词 Taftan MOUNTAIN TECTONIC MORPHOMETRIC khash
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气候变化对天山西部哈什河径流变化过程的影响分析 被引量:6
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作者 王姣妍 《冰川冻土》 CSCD 北大核心 2011年第5期1153-1160,共8页
由于气候变化导致的我国西北地区径流变化已引起了广泛关注.哈什河位于新疆天山西部,冰雪融水是哈什河主要补给源.根据哈什河1955年以来的实测水文、气象资料分析表明,50多年来,哈什河降水、气温呈波动性上升趋势,特别是20世纪80年代后... 由于气候变化导致的我国西北地区径流变化已引起了广泛关注.哈什河位于新疆天山西部,冰雪融水是哈什河主要补给源.根据哈什河1955年以来的实测水文、气象资料分析表明,50多年来,哈什河降水、气温呈波动性上升趋势,特别是20世纪80年代后期以来,降水、气温进入明显上升阶段.对径流丰枯周期分析表明,哈什河径流变化过程与降水、气温变化过程并不完全一致,径流变化1960年以前为丰水期,其后进入平水期,直至1973年开始转入枯水期,这一枯水阶段持续至1997年转入丰水期.通过降水、气温、径流冷、暖季年代际过程对照分析发现,径流年际变化对冷季降水及暖季气温变化最为敏感. 展开更多
关键词 径流变化过程 降水 气温 哈什河
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