Abstract Red sandstones with large-scale cross-beddings in high dip angles were developed in Yanyuan Basin during the sedimentary period of Eocene Lijiang Formation.Its exact origin is significant for revising the Paleogene palaeogeographic pattern in the eastern margin of the Tibetan Plateau and reconstructing the evolutionary process of the Cenozoic arid belt and palaeoclimate in East Asia.Sedimentary characteristics of these red sandstones from the Eocene Lijiang Formation in Yanyuan Basin were systematically analyzed in this paper.The results show that their lithology，grain size distribution，surface features of quartz grains and sedimentary structures are clearly different from aqueous deposits，but perfectly consistent with the corresponding sedimentary characteristics of typical aeolian dunes，indicating that these red sandstones should be attributed to aeolian dunes.Combined with the Paleogene palaeoclimate state，atmospheric circulation pattern and geotectonic setting of the study area，it is further inferred that the Eocene aeolian dunes in Yanyuan Basin could be deposited in the desert environment，which was located in the Chinese Paleogene arid belt.Furthermore，on the basis of existing relevant research data，it is also confirmed that there was an aeolian dune enrichment zone in eastern margin of the Tibetan Plateau during the Early-Mid Paleogene epoch.
About author: Cui Xiaozhuang，born in 1984，is an assistant engineer at Chengdu Institute of Geology and Mineral Resources.He is engaged in sedimentology and petrogeochemistry.E-mail: cdcxiaozhuang@hotmail.com. About the corresponding author Jiang Xinsheng，born in 1956，is a research professor at Chengdu Institute of Geology and Mineral Resources.He is engaged in palaeogeography，palaeo-desert and global climate change.Tel：028-83231155；E-mail: cdjxinsheng@126.com.
Cite this article:
Cui Xiaozhuang,Jiang Xinsheng,Wu Hao et al. The Paleogene aeolian dunes and their palaeogeographic significance in Yanyuan Basin，eastern margin of the Tibetan Plateau[J]. JOURNAL OF PALAEOGEOGRAPHY, 2012, 14(5): 571-582.
Cui Xiaozhuang,Jiang Xinsheng,Wu Hao et al. The Paleogene aeolian dunes and their palaeogeographic significance in Yanyuan Basin，eastern margin of the Tibetan Plateau[J]. JOPC, 2012, 14(5): 571-582.
陈冬梅，穆桂金.2004.不同沉积环境下沉积物的粒度分形特征的对比研究［J］.干旱区地理，27（1）:47-51. 陈丽华，缪昕，于众.1986.扫描电镜在地质上的应用［M］.北京: 科学出版社，21-44. 陈丽华，缪昕，魏宝和.1990.扫描电镜在石油地质上的应用［M］.北京: 科学出版社，51-60. 成都地质学院陕北队.1978.沉积岩（物）粒度分析及其应用［M］.北京: 地质出版社，1-147. 崔晓庄，江新胜，伍皓，等.2011.云南西北部丽江—剑川地区古近纪宝相寺组石英砂颗粒表面特征［J］.地质通报，30（8）:1238-1244. 董光荣，王贵勇，陈惠忠，等.1995.中国沙漠形成、演化与青藏高原隆升的关系［C］.见:中国青藏高原研究论文集.北京: 气象出版社，13-29. 郝子文.1999.西南区区域地层［M］.湖北武汉: 中国地质大学出版社，168-188. 江新胜，李玉文.1996.中国中东部白垩纪沙漠的时空分布及其气候意义［J］.岩相古地理，16（2）:42-51. 江新胜，潘忠习.2005.中国白垩纪沙漠及气候［M］.北京: 地质出版社，1-117. 江新胜，陈乐尧，李玉文.1992.西南区白垩—第三纪沙漠及沉积问题［J］.岩相古地理，5: 1-66. 江新胜，潘忠习，付清平.2000.白垩纪时期东亚大气环流格局初探［J］.中国科学（D辑），30（5）:526-532. 江新胜，徐金沙，潘忠习.2003.鄂尔多斯盆地白垩纪沙漠石英砂颗粒表面特征［J］.沉积学报，21（3）:416-422. 江新胜，潘忠习，徐金沙，等.2006.江西信江盆地晚白垩世风成沙丘的发现及其古风向［J］.地质通报，25（7）:833-838. 李勇，侯中健，司光影，等.2001.青藏高原东南缘晚第三纪盐源构造逸出盆地的沉积特征与构造控制［J］.矿物岩石，21（3）:34-43. 李勇，侯中健，司光影，等.2002.青藏高原东缘新生代构造层序与构造事件［J］.中国地质，29（1）:30-36. 李玉文，陈乐尧，江新胜.1988.川南黔北白垩—第三纪沙漠相及其意义［J］.岩相古地理，6: 1-14. 李云通，等.1984.中国的第三系［M］.北京: 地质出版社，73-85. 刘东生，郑绵平，郭正堂.1998.亚洲季风系统的起源和发展及其与两极冰盖和区域构造运动的时代耦合性［J］.第四纪研究，10（3）: 194-204. 刘立安，姜在兴.2011.四川盆地古纪沙漠沉积特征及古风向意义［J］.地质科技情报，30（2）:63-68. 梅冥相，于炳松，靳卫广.2004a.塔里木盆地北缘库车盆地白垩系风成砂岩研究——以库车河剖面为例［J］.地质通报，23（12）:1221-1227. 梅冥相，于炳松，靳卫广.2004b.塔里木盆地库车坳陷白至纪层序地层格架及古地理演化［J］.古地理学报，6（3）:261-278. Mischke S.2005.内蒙古巴丹吉林沙漠成因的粒度分析和热发光测年新证据［J］.古地理学报，7（1）:79-97. 潘桂棠，王培生，徐耀荣，等.1990.青藏高原新生代构造演化［M］.北京: 地质出版社，14-70. 四川省地质矿产局.1991.四川省区域地质志［M］.北京: 地质出版社，1-730. 宋春晖，孟庆泉，夏维民，等.2009.青藏高原北缘古近纪石英砂表面特征及其古环境意义［J］.沉积学报，27（1）:94-103. 伍皓，崔晓庄，熊国庆，等.2011.云南丽江古近纪风成沉积的发现及其气候意义［J］.沉积与特提斯地质，36（1）:13-18. 谢又予.1984.中国石英砂表面结构特征图谱［M］.北京: 海洋出版社，1-95. 殷志强，秦小光，吴金水，等.2009.中国北方部分地区黄土、沙漠沙、湖泊、河流细粒沉积物粒度多组分分布特征研究［J］.沉积学报，27（2）:343-351. 云南省地质矿产局.1996.云南省岩石地层［M］.湖北武汉: 中国地质大学出版社，259-264. 张川波，何元良.1983.辽宁北票附近中侏罗世晚期的沙漠沉积［J］.沉积学报，1（4）:48-62. 张克信，王国灿，季军良，等.2010.青藏高原古近纪—新近纪地层分区与序列及其对隆升的响应［J］.中国科学（D辑），40（12）:1632-1654. 中国地层典编委会.1999.中国地层典——第三系［M］.北京: 地质出版社，1-131. Ahlbrandt T S.1979.Textural parameters of eolian deposits ［C］.In: Mckee E D（ed）. A Study of Global Sand Seas.Washington: United States Government Printing Office，21-52. Ahlbrandt T S，Fryberger S G.1982.Introduction to aeolian deposits ［C］.In: Scholle P A，Spearing D R（eds）. Sandstone Depositional Environments.Memoir of the American Association of Petroleum Geologists，31: 11-47. Collinson J D，Thompson D B.1989.Sedimentary Structures，second ed ［M］.Oxford: The University Printing House，1-194. Friedman G M，Sanders J E.1978.Principles of Sedimentology ［M］.New York: John Wiley and Sons，200-236. Guo Z T，Sun B，Zhang Z S， et al.2008.A major reorganization of Asian climate by the Early Miocene ［J］.Climate of the Past，4: 153-174. Hansen E，DeVries Z S，Dijk D， et al.2009.Patterns of wind flow and aeolian deposition on a parabolic dune on the southeastern shore of Lake Michigan ［J］.Geomorphology，105: 147-157. Huber M，Goldner A.2012.Eocene monsoons ［J］.Journal of Asian Earth Sciences，44: 3-23. Loope D B，Rowe C M，Joeckel C M.2001.Annual monsoon rains recorded by Jurassic dunes ［J］.Nature，412: 64-66. Loope D B，Steiner M B，Rowe C M， et al.2004.Tropical Westerlies over Pangaean Sand Seas ［J］.Sedimentology，51: 315-322. Lu Y J，Kerrich R，Cawood P A， et al.2012.Zircon SHRIMP U-Pb geochronology of potassic felsic intrusions in western Yunnan，SW China: Constraints on the relationship of magmatism to the Jinsha suture［J］.Gondwana Research，22:737-747. Mckee E D.1979a.Sedimentary structures in dunes［C］.In: Mckee E D（ed）. A Study of Global Sand Seas. Washington: United States Government Printing Office，83-136. Mckee E D.1979b.Ancient sandstones considered to be eolian ［C］.In: Mckee E D（ed）. A Study of Global Sand Seas.Washington: United States Government Printing Office，187-240. Miall A D.1977. A review of the braided river depositional environment ［J］.Earth Science Reviews，13: 1-62. Reading H G.1996.Sedimentary Environments: Processes，Facies，and Stratigraphy(third edition) ［M］.Oxford: Blackwell Science Ltd，37-231. Scherer C M S，Goldberg K.2010.Cyclic cross-bedding in the eolian dunes of the Sergi Formation（Upper Jurassic），Recncavo Basin: Inferences about the wind regime［J］.Palaeogeography，Palaeoclimatology，Palaeoecology，296: 103-110. Sun J M，Zhang Z Q，Zhang L Y.2009.New evidence on the age of the Taklimakan Desert［J］.Geology，37（2）:159-162. Sun X J，Wang P X.2005.How old is the asian monsoon system？—Palaeobotanical constraints from China［J］.Palaeogeography，Palaeoclimatology，Palaeoecology，222: 181-222. Walker T R.1979.Red color in dune sand［C］.In: Mckee E D（ed）. A Study of Global Sand Seas.Washington:United States Government Printing Office，61-82. Yao Y F，Bera S，Ferguson D K， et al.2009.Reconstruction of paleovegetation and palaeoclimate in the Early and Middle Eocene，Hainan Island，China［J］.Climatic Change，92: 169-189. Zhang Z S，Wang H J，Guo Z T， et al.2007.Impacts of tectonic changes on the reorganization of the Cenozoic paleoclimatic patterns in China［J］.Earth Planet Science Letters，257: 622-634. Zhang Z S，Flaty F，Wang H J， et al.2012.Early Eocene Asian climate dominated by desert and steppe with limited monsoons［J］.Journal of Asian Earth Sciences，44: 24-35.
