西秦岭北缘漳河阶地发育特征与成因分析
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摘要
漳河漳县段沿西秦岭北缘断层发育,其南岸保存了良好的四级阶地,Ⅰ级阶地为堆积阶地,局部为基座阶地,Ⅱ、Ⅲ级阶地为基座阶地,Ⅳ级阶地为侵蚀阶地。漳河阶地上覆堆积物特点反映了其形成主要受构造抬升控制,气候变化影响较小。漳河阶地的抬升速率指示了西秦岭北缘地区在晚更新世中晚期经历了短暂的缓和隆升后,全新世以来具有加速隆升的趋势。阶地发育频率可能受到了气候变化的影响使其与隆升速率不具有正相关性。
Abstact: Zhangxian River extends along the north margin fault zone of West Qinling in Zhangxian Basin. There are four terraces preserved to the southern bank of the river. TerraceⅠ is stacked terrace,with some places for pedestal terrace. TerracesⅡ and Ⅲ are both pedestal terrace,and terrace Ⅳ is erosion terrace. The characteristics of the alluvial deposit on Zhangxian River terraces reflect that they were resulted mainly from periodic tectonic uplift of the earth's crust and rarely from climate's change. The uplift rates of Zhangxian River terraces indicate that the northern margin of West Qinling has been now at a stage of uplift acceleration since Holocene after a short balanced uplift in the middle- late Pleistocene. However there wasn't a positive correlation between uplift rate and the frequency of development of Zhangxian River terraces that probably affected by climate's change.
Abstact: Zhangxian River extends along the north margin fault zone of West Qinling in Zhangxian Basin. There are four terraces preserved to the southern bank of the river. TerraceⅠ is stacked terrace,with some places for pedestal terrace. TerracesⅡ and Ⅲ are both pedestal terrace,and terrace Ⅳ is erosion terrace. The characteristics of the alluvial deposit on Zhangxian River terraces reflect that they were resulted mainly from periodic tectonic uplift of the earth's crust and rarely from climate's change. The uplift rates of Zhangxian River terraces indicate that the northern margin of West Qinling has been now at a stage of uplift acceleration since Holocene after a short balanced uplift in the middle- late Pleistocene. However there wasn't a positive correlation between uplift rate and the frequency of development of Zhangxian River terraces that probably affected by climate's change.
引文
[1]郭进京,韩文峰,梁收运.青藏高原东北缘岷县-武都地区构造地貌演化与高原隆升[J].中国地质,2006,33(2):383-392.
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[3]刘小丰,李明永,刘洪春,等.渭河陇西段河流对构造-气候变化的响应[J].干旱区资源与环境,2010,24(11):68-72.
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[6]李传友,张培震,张剑玺,等.西秦岭北缘断裂带黄香沟段晚第四纪活动表现与滑动速率[J].第四纪研究,2007,27(1):54-63.
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[10]马保起,苏刚,侯治华,等.利用岷江阶地的变形估算龙门山断裂带中段晚第四纪滑动速率[J].地震地质,2005,27(2):234-242.
[11]李勇,曹叔尤,周荣军,等.晚新生代岷江下蚀速率及其对青藏高原东缘山脉隆升机制和形成时限的定量约束[J].地质学报,2005,79(1):28-37.
[12]苗琦,李丽松,钱方,等.青海黄河贵德段河流阶地及新构造运动研究[J].地质与资源,2012,21(5):493-496.
[13]雷祥义,屈红军,岳乐平.灞河阶地黄土-古土壤系列及其年代意义[J].西北大学学报,1992,22(2):219-226.
[14]刘勇,赵志军,李才林,等.川西高原杂谷脑河阶地的形成[J].地理学报,2006,61(3):249-254.
[15]胡春生,潘保田,高红山,等.最近150Ka河西地区河流阶地的成因分析[J].地理科学,2006,26(5):603-608.
[16]曹伯勋.地貌学及第四纪地质学[M].武汉:中国地质大学出版社,2003:54-81.
[17]陈晓龙,范天来,张复,等.鄂尔多斯高原周缘黄河阶地的形成与青藏高原隆升[J].地理科学进展,2013,32(4):595-605.
[18]Antoine P,Lautridou J P,Laurent M.Long-term fluvial archives in NW France Response of the Seine and Somme rivers to tectonic movements,climatic variations and sea-level changes[J].Gemorphology,2000,33(3-4):183-207.
[2]郭进京,韩文峰,梁收运,等.西秦岭岷县-宕昌地区洮河和岷江阶地特征对比研究-兼论中国南北构造带在西秦岭的地貌响应[J].地质调查与研究,2006,29(4):271-278.
[3]刘小丰,李明永,刘洪春,等.渭河陇西段河流对构造-气候变化的响应[J].干旱区资源与环境,2010,24(11):68-72.
[4]刘小丰,潘保田,高红山,等.渭河河流沉积物对气候变化的响应分析[J].干旱区资源与环境,2007,21(5):6-9.
[5]王志才,张培震,张广良,等.西秦岭北缘构造带的新生代构造活动-兼论对青藏高原东北缘形成过程的指示意义[J].地学前缘,2006,13(4):119-135.
[6]李传友,张培震,张剑玺,等.西秦岭北缘断裂带黄香沟段晚第四纪活动表现与滑动速率[J].第四纪研究,2007,27(1):54-63.
[7]潘保田,刘小丰,高红山,等.渭河上游陇西段河流阶地的形成时代及其成因[J].自然科学进展,2007,17(8):1063-1068.
[8]潘保田,苏怀,刘小丰,等.兰州东盆地最近1.2Ma的黄河阶地序列与形成原因[J].第四纪研究,2007,27(2):172-180.
[9]刘小凤,袁道阳,刘百箎,等.兰州及邻近地区河流阶地变形特征[J].西北地震学报,2003,25(2):119-142.
[10]马保起,苏刚,侯治华,等.利用岷江阶地的变形估算龙门山断裂带中段晚第四纪滑动速率[J].地震地质,2005,27(2):234-242.
[11]李勇,曹叔尤,周荣军,等.晚新生代岷江下蚀速率及其对青藏高原东缘山脉隆升机制和形成时限的定量约束[J].地质学报,2005,79(1):28-37.
[12]苗琦,李丽松,钱方,等.青海黄河贵德段河流阶地及新构造运动研究[J].地质与资源,2012,21(5):493-496.
[13]雷祥义,屈红军,岳乐平.灞河阶地黄土-古土壤系列及其年代意义[J].西北大学学报,1992,22(2):219-226.
[14]刘勇,赵志军,李才林,等.川西高原杂谷脑河阶地的形成[J].地理学报,2006,61(3):249-254.
[15]胡春生,潘保田,高红山,等.最近150Ka河西地区河流阶地的成因分析[J].地理科学,2006,26(5):603-608.
[16]曹伯勋.地貌学及第四纪地质学[M].武汉:中国地质大学出版社,2003:54-81.
[17]陈晓龙,范天来,张复,等.鄂尔多斯高原周缘黄河阶地的形成与青藏高原隆升[J].地理科学进展,2013,32(4):595-605.
[18]Antoine P,Lautridou J P,Laurent M.Long-term fluvial archives in NW France Response of the Seine and Somme rivers to tectonic movements,climatic variations and sea-level changes[J].Gemorphology,2000,33(3-4):183-207.