| 四川盆地古近纪沙漠沉积特征及古风向意义 |
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| 引用本文： | 刘立安,姜在兴.四川盆地古近纪沙漠沉积特征及古风向意义[J].地质科技情报,2011,30(2):63-68. |
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| 作者姓名： | 刘立安 姜在兴 |
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| 作者单位： | 中国地质大学能源学院,北京,100083 |
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| 基金项目： | 国家科技重大专项，教育部"长江学者"与创新团队发展计划 |
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| 摘 要： | 基于前人研究成果,通过野外地质调查、室内分析测试对四川盆地古近系柳嘉组红层沉积物的性质、结构、原生沉积构造及石英颗粒表面结构进行了系统分析,分析结果进一步证明了本区古沙漠的存在.将其沙漠沉积分为沙丘和丘间两种沉积类型,对丘间又细分为干丘间和湿丘间,针对不同的沉积类型也明确了相应的识别标志.通过对沙丘前积层倾向的测量,重...
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| 关 键 词： | 四川盆地 柳嘉组 古近纪沙漠 沉积特征 古风向 |
Depositional Features of the Desert in the Paleogene Sichuan Basin and the Significance for the Reconstruction of Palaeowind Direction |
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| LIU Li-an,JIANG Zai-xing.Depositional Features of the Desert in the Paleogene Sichuan Basin and the Significance for the Reconstruction of Palaeowind Direction[J].Geological Science and Technology Information,2011,30(2):63-68. |
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| Authors: | LIU Li-an JIANG Zai-xing |
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| Institution: | LIU Li-an,JIANG Zai-xing(School of Energy Resources,China University of Geosciences,Beijing 100083,China) |
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| Abstract: | Based on the field geological investigations and laboratory tests,and the previous research achievements,this paper makes a systematic analysis of the red bed deposits in Liujia Formation of the Paleogene Sichuan Basin in terms of the properties,textures,primary structures and the surface textures of the quartz grains.The analysis is made on the basis of the analysis results further confirm the existence of ancient deserts in this area.Moreover,this paper classifies the depositional types into two types: th... |
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| Keywords: | Sichuan Basin Liujia Formation Paleogene deserts depositional feature paleogene wind direction |
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