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青海贵德—共和—同德地区更新统最小古沉积面恢复与全新世侵蚀量计算

DOI: 10.6046/gtzyyg.2013.01.18, PP. 99-104

Keywords: 古沉积面,数字高程模型,青藏高原东北缘,侵蚀速率,气候

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Abstract:

青海省贵德—共和—同德盆地位于青藏高原东北缘,黄河干流流经这3个盆地。为了解该区全新世以来河流侵蚀所指示的构造和气候信息,利用数字高程模型(DEM)结合地质资料,采用地质剖面网,计算了全新世以来3个盆地的侵蚀量。首先,通过一系列地质剖面选取代表更新统沉积顶面的样本点,恢复盆地内部更新统最小古沉积面,最大限度地排除更新统沉积之后因侵蚀作用造成的误差;然后,将恢复的更新统最小古沉积面DEM与现今DEM进行差值运算,获得全新世以来的最低侵蚀量和侵蚀速率。结果表明,全新世以来的侵蚀速率在接近高原内部的同德盆地最小,在高原边缘的贵德盆地最大。这种侵蚀速率在空间上的差异表明,全新世以来青藏高原东北缘的地表隆升有大于其内部隆升的趋势。

References

[1]  Molnar P,England P,Martinod J,et al.Mantle dynamics,uplift of the Tibetan Plateau,and the Indian Monsoon[J].Reviews of Geophysics,1993,31(4):357-396.
[2]  Raymo M E,Ruddiman W F.Tectonic forcing of late Cenozoic climate[J].Nature,1992,359(6391):117-122.
[3]  An Z S,Kutzbach J E,Prell W L,et al.Evolution of Asian Monsoons and phased uplift of the Himalayan Tibetan Plateau since late Miocene times[J].Nature,2001,411(6833):62-66.
[4]  Harrison T M,Copeland P,Kidd W S F,et al.Raising Tibet[J].Science,1992,255(5052):1663-1670.
[5]  Li J J,Fang X M,Van der Voo R,et al.Magnetostratigraphic dating of river terraces:Rapid and intermittent incision by the Yellow River of the northeastern margin of the Tibetan Plateau during the Quaternary[J].Journal of Geophysical Research B,1997,102(B5):10121-10132.
[6]  李吉均,方小敏.青藏高原隆起与环境变化研究[J].科学通报,1998,43(15):1569-1574. Li J J,Fang X M.Uplift of Qinghai-Tibetan Plateau and environmental change[J].Chinese Science Bulletin,1998,43(15):1569-1574.
[7]  Tapponnier P,Xu Z Q,Roger E,et al.Oblique stepwise rise and growth of the Tibetan Plateau[J].Science,2001,294(5547):1671-1677.
[8]  Guo Z,Ruddiman W F,Hao Q Z,et al.Onset of Asian desertification by 22Myr ago inferred from loess deposits in China[J].Nature,2002,416(6877):159-163.
[9]  张培震,郑德文,尹功明,等.有关青藏高原东北缘晚新生代扩展与隆升的讨论[J].第四纪研究,2006,26(1):5-13. Zhang P Z,Zheng D W,Yin G M,et al.Discussion on late Cenozoic growth and rise of northeastern margin of the Tibetan Plateau[J].Quaternary Science,2006,26(1):5-13.
[10]  Lease R O,Burbank D W,Gehrels G E,et al.Signatures of mountain building:Detrital zircon U/Pb ages from northeastern Tibet[J].Geology,2007,35(3):239-242.
[11]  Clark M K,Schoenbohm L M,Royden L H,et al.Surface uplift,tectonics and erosion of eastern Tibet from large-scale drainage patterns[J].Tectonics,2004,23:TC1006.
[12]  张会平,刘少峰.青藏高原东北缘循化—贵德盆地及邻区更新世时期沉积与后期侵蚀样式研究[J].第四纪研究,2009,29(4):806-815. Zhang H P,Liu S F.Pleistocene deposition and subsequent erosion distribution around Xunhua—Guide basin,northeastern Tibetan Plateau[J].Quaternary Sciences,2009,29(4):806-815.
[13]  李吉均,方小敏,潘保田,等.新生代晚期青藏高原强烈隆起及其对周边环境的影响[J].第四纪研究,2001,21(5):381-391. Li J J,Fang X M,Pan B T,et al.Late Cenozoic intensive uplift of Qinghai-Xizang Plateau and its impacts on environments in surrounding area[J].Quaternary Sciences,2001,21(5):381-391.
[14]  Métivier F,Gaudemer Y,Tapponnier P,et al.Northeastward growth of the Tibet Plateau deduced from balanced reconstruction of two depositional areas:The Qaidam and Hexi corridor basins,China[J].Tectonics,1998,17(6):823-842.
[15]  Fang X M,Yan M D,Van der Voo R Y,et al.Late Cenozoic deformation and uplift of the NE Tibetan Plateau:Evidence from high-resolution magnetostratigraphy of the Guide basin,Qinghai province,China[J].Geological Society of America Bulletin,2005,117:1208-1225.
[16]  Zheng D W,Zhang P Z,Wan J L,et al.Rapid exhumation at ~8 Ma on the Liupan Shan thrust fault from apatite fission-track thermochronology:Implications for growth of the northeastern Tibetan Plateau margin[J].Earth Planetary Science Letters,2006,248:198-208.
[17]  刘少峰,王陶,张会平,等.数字高程模型在地表过程研究中的应用[J].地学前缘,2005,12(1):303-309. Liu S F,Wang T,Zhang H P,et al.Application of digital elevation model to surficial process research[J].Earth Science Frontiers,2005,12(1):303-309.
[18]  高明星,刘少峰.基于DEM数据的古沉积面的重建方法——以青藏高原东北缘青海贵德盆地为例[J].地质通报,2008,27(4):545-551. Gao M X,Liu S F.A method of reconstructing the paleosurface based on DEM data:A case study of the Guide basin,Qinghai,China, on the northeastern margin of the Qinghai-Tibet Plateau[J].Geological Bulletin of China,2008,27(4):545-551.
[19]  潘宝田.贵德盆地地貌演化与黄河上游发育研究[J].干旱区地理,1994,17(3):43-50. Pan B T.A study on the geomorphic evolution and development of the upper reaches of Yellow River in Guide basin[J].Arid Land Geography,1994,17(3):43-50.
[20]  常宏,金章东,安芷生.青海南山隆起的沉积证据及其对青海湖—共和盆地构造分异演化的指示[J].地质评论,2009,55(1):49-57. Chang H,Jin Z D,An Z S.Sedimentary evidences of the uplift of the Qinghai Nanshan(the mountains south to Qinhai Lake)and its implication for structural evolution of the Lake Qinghai—Gonghe basin[J].Geological Review,2009,55(1):49-57.
[21]  McMillan M E,Paul H L,Wing S L.History and causes of Post-Laramide relief in the Rocky Mountain orogenic plateau[J].Geological Society of American Bulletin,2006,118(3-4):393-405.
[22]  Small E E,Anderson R S.Pleistocene relief production in Laramide Mountain Ranges,western United States[J].Geology,1998,26(2):123-126.
[23]  Craddock H W,Kirby E,Harkins W N,et al.Rapid fluvial incision along the Yellow River during headward basin integration[J].Nature Geoscience,2010(3):209-213.
[24]  Schumm S A.River response to baselevel change:Implications for sequence stratigraphy[J].Journal of Geology,1993,101(2):279-294.
[25]  王均平.黄河中游晚新生代地貌演化与黄河发育[D].兰州:兰州大学,2006. Wang J P.Formation and evolution of the middle reaches of the Yellow River since late Cenozoic[D].Lanzhou:Lanzhou University,2006.
[26]  Maddy D.Rapid communication uplift-driven valley incision and river terrace formation in southern England[J].Journal of Quaternary,1997,12(6):539-545.
[27]  吴庆龙,张培震,张会平,等.黄河上游积石峡古地震堰塞溃决事件与喇家遗址异常古洪水灾害[J].中国科学:D辑:地球科学,2009,39(8):1148-1159. Wu Q L,Zhang P Z,Zhang H P,et al.A palaeo-earthquake induced damming and bursting of Yellow River and the abnormal flood that destroyed Lajia relic[J].Science China Ser D-Earth Science,2009,39(8):1148-1159.
[28]  赵振明,刘百篪.青海共和至甘肃兰州黄河河谷地貌的形成与青藏高原东北缘隆升的关系[J].西北地质,2003,36(2):1-12. Zhao Z M,Liu B C.Relation between the formation of the Yellow River valley landforms from Gonghe,Qinghai to Lanzhou,Gansu and the uplifting in northeast part of Qinghai-Xizang Plateau[J].Northwestern Geology,2003,36(2):1-12.
[29]  常宏,张培震,安芷生,等.昆仑山北坡鸭子泉河阶地发育及其构造-气候意义[J].科学通报,2005,50(9):912-917. Chang H,Zhang P Z, An Z S,et al.Alluvial terraces of Yaziquan river on northern slope of Kunlun Mountains and their tectonic-climatic significance[J].Chinese Science Bulletin,2005,50(9):912-917.

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