| 新疆库木库里盆地演化 |
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| 引用本文： | 肖爱芳,黎敦朋,李新林,周小康,杜少喜.新疆库木库里盆地演化[J].陕西地质,2005,23(1):59-69. |
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| 作者姓名： | 肖爱芳 黎敦朋 李新林 周小康 杜少喜 |
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| 作者单位： | 1. 中国地质大学(武汉)资源学源,武汉,430074;陕西省地质调查院,西安,710054
2. 陕西省地质调查院,西安,710054 |
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| 基金项目： | 中国地质调查局“1∶2 5万阿牙克库木湖幅 (J4 5C0 0 30 0 4 )区调”项目 (2 0 0 0 11130 0 0 0 92 71)支助 |
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| 摘 要： | 通过对新疆库木库里盆地的地质调查，渐新统一上新统识别出冲积扇、河流、湖泊三角洲、湖泊四种沉积相、六种亚相、十种微相；具有盆地演化早、晚期碎屑成熟度较低，盆地演化中期碎屑成熟度较高的特征；通过物源分析得出盆地演化早期碎屑物质来自盆地南部，晚期碎屑物质来自盆地西部，碎屑物质均来源于再旋回造山带构造背景区，并具有早期南高北低、晚期西南高东北低的古地理格局；盆地分析表明新疆库木库里盆地从渐新世形成大致经历了渐新世一早中新世盆地萌芽、中中新世一晚中新世盆地的生长发育、上新世盆地萎缩三个演化阶段。
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| 关 键 词： | 库木库里盆地 沉积相 物质来源 古地理格局 盆地演化 |
| 文章编号： | 1001-6996(2005)01-0059-11 |
| 修稿时间： | 2005年3月9日 |
EVOLUTION OF THE KUMUKULI BASIN IN SINKIANG |
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| XIAO Ai-fang,LI Dun-peng,LI Xin-lin,ZHOU Xiao-kang,DU Shao-xi.EVOLUTION OF THE KUMUKULI BASIN IN SINKIANG[J].Geology of Shaanxi,2005,23(1):59-69. |
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| Authors: | XIAO Ai-fang LI Dun-peng LI Xin-lin ZHOU Xiao-kang DU Shao-xi |
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| Institution: | XIAO Ai-fang 1,2,LI Dun-peng 2,LI Xin-lin 2,ZHOU Xiao-kang 2,DU Shao-xi 2 |
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| Abstract: | Geological surveying in the Kumukuli basin of Sinkiang has revealed four sedimentary facies of alluvial fan, river, lacustrine delta and lakes, six sub-facies and ten micro-facies in the Oligocene-Pliocene Series. Evolution of the basin is characterized by low maturity of clastics in the early and late stages and high maturity in the middle stage. Original analysis of materials has concluded that fragmentary materials in the early stage of the evolution came from the south part of the basin and in the late stage from the west, which were all from a recycle-orogenic zone with a paleogeographic frame that was characterized by higher in the south part at the early stage, and higher in the southwest and lower in the northeast at the late stage. Analysis of the basin has indicated that the Kumukuli basin in Sinkiang passed such three evolutional stages as beginning in the Oligocne-early Miocene Epoch, developing in the middle Miocene-late Miocene Epoch and depauperization in the Pliocen Epoch. |
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| Keywords: | the Kumukuli Basin sedimentary facies source of materials paleogeographic frame evolution of the basin |
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