| 唐永忠,吴昊,温志刚,李兴文,祝捷,唐玉,王扬.陕西榆林安崖早侏罗世富县组恐龙足迹的发现及沉积环境[J].矿产勘查,2026,17(S1):17-27 |
| 陕西榆林安崖早侏罗世富县组恐龙足迹的发现及沉积环境 |
| Study on the sedimentary environment of Early Jurassic Fuxian Formation dinosaur tracksite in Anya， Yulin， Shaanxi Province |
| 投稿时间：2026-01-30 修订日期：2026-04-21 |
| DOI：10.20008/j.kckc.2026S1003 |
| 中文关键词: 榆林 早侏罗世 富县组 恐龙足迹 沉积环境 |
| 英文关键词: Yulin City Early Jurassic Fuxian Formation dinosaur footprint sedimentary environment |
| 基金项目:本文受国家自然科学基金青年科学基金（42202028）、榆林市2022年度古生物化石调查评价技术服务项目（2203051）、榆林市2023年重要古生物化石资源详细调查项目（2306033）、陕西省古生物化石保护技术支撑服务体系建设项目联合资助。 |
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| 中文摘要: |
| 为系统查明榆林市重要古生物化石资源赋存特征，填补鄂尔多斯盆地榆林地区早侏罗世恐龙遗迹及沉积环境研究空白，本文对榆林市榆阳区安崖早侏罗世富县组古生物化石开展详细调查，共发现恐龙足迹点4处，计106枚。识别出兽脚类、蜥脚类及鸟脚类恐龙足迹，足迹数量丰富、类型多样，在鄂尔多斯盆地内较为罕见。通过恐龙足迹调查、测量，地层结构与沉积构造剖析，结合足迹形态学鉴定及化石组合综合分析，系统还原足迹形成与保存的沉积环境。赋存足迹岩层发育地沉积构造，指示其形成于滨—浅湖沉积环境。为区内古生态、古气候、岩相古地理重建及沉积盆地分析提供了关键实物依据，具有重要地质科学价值。 |
| 英文摘要: |
| To clarify the characteristics of important palaeontological fossil resources in Yulin City and to fill the research gap on Early Jurassic dinosaur traces and sedimentary environments in the Yulin area of the Ordos Basin， a detailed survey was conducted on the palaeontological fossils of the Fuxian Formation from the Early Jurassic in Anyan， Yuyang District， Yulin City， resulting in the discovery of four dinosaur footprint sites， totalling 106 prints. Footprints of theropods， sauropods and ornithopods have been identified， with abundant numbers and diverse types， which are relatively rare in the Ordos Basin. Through the investigation and measurement of dinosaur footprints， analysis of stratigraphic structures and sedimentary features， combined with the identification of footprint morphology and comprehensive analysis of fossil assemblages， the sedimentary environment of footprint formation and preservation is systematically restored. The strata containing footprints exhibit developed sedimentary structures， indicating formation in a coastal-shallow lake sedimentary environment. It provides crucial physical evidence for the reconstruction of palaeoecology， palaeoclimate， lithofacies palaeogeography， and sedimentary basin analysis in the area， holding significant geological scientific value. |
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