| 张晓诗,赵兵,谭梅,周冰洋,孙剑.贵州大方侏罗统自流井组地层特征及恐龙足迹化石的发现[J].贵州地质,2016,33(1):50-57，70 |
| 贵州大方侏罗统自流井组地层特征及恐龙足迹化石的发现 |
| Stratigraphic Characteristics of Ziliujing Formation，Jurassic Series and Discovery of Dinosaur Footprints in Dafang，Guizhou |
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| DOI： |
| 中文关键词: 贵州省 侏罗统 自流井组 岩石地层 划分对比 沉积相 恐龙足迹 |
| 英文关键词:Guizhou Jurassic series Ziliujing formation Lithostratigraphy Classification and Correlation Sedimentary facies Dinosaur pootprint |
| 基金项目:中国地质调查局地质调查项目《贵州1∶5万响水、百纳、大方、林泉、牛场坡、沙窝（G48E005015、G48E005016、G48E006015、G48E006016、G48E007015、G48E007016）6幅岩溶石山区域地质调查》（项目编号：12120113051900） |
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| 中文摘要: |
| 本文详细描述了大方县高枧乡黎家湾自流井组剖面，讨论了自流井组的岩性组合特征、接触关系及横向变化，根据双壳及叶肢介化石组合带的时代将自流井组归于下侏罗统，将新田沟组归于中侏罗统。首次在大方响水乡大转弯自流井组马鞍山段地层中发现有恐龙足迹化石。根据岩石组合特征、沉积构造确定自流井组为湖泊相滨湖及浅湖亚相沉积，包括砂坪、泥坪、混合坪、介壳滩微相类型。根据陆相基准面旋回层序将自流井组划分为2个长期旋回层序、5个中期旋回层序。 |
| 英文摘要: |
| In this paper，Ziliujing formation in Lijiawan is described，thelithology association，stratigraphic contact relation and transverse variation are also discussed. According to Bivalia and Estheris fossil assemblage zones，Ziliujing formation belongs to be low Jurassic system and Xintiangou formation belongs to middle Jurassic system. Dinosaur footprints were discovered in Ma’anshan section for the first time. According to kithology association and sedimentary structure，it’s determined ziliujing formation is costal lake and shallow lake subfacies of lake facies composed of sand flat，mud flat，sand，mud mixed flat and shell bank microfacies. Ziliujing formation has been divided into 2 long period base level cycle sequences and 5 middle period base level cycle sequences. |
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