| 王波,朱华利,谯常,陈武.贵州大方鼎新茅口组同沉积变形构造的发现及其意义[J].贵州地质,2025,42(1):10-16 |
| 贵州大方鼎新茅口组同沉积变形构造的发现及其意义 |
| Discovery and Its Significance of the Syn-depositional Deformation Structures from the Maokou Formation of DingXin in Dafang，Guizhou |
| 投稿时间：2024-10-23 |
| DOI： |
| 中文关键词: 中二叠世 茅口组 白泥塘层 滑移变形 台沟相 锰矿 |
| 英文关键词:Middle Permian Maokou formation Bainitang stratum Sliding deformation Platform and trench face Manganese ores |
| 基金项目:贵州省地矿局科技创新人才团队培育计划项目-贵州地质三维空间调查评价科技创新人才团队(黔地矿科合〔2024〕TD004) |
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| 中文摘要: |
| 中二叠世晚期贵州大部处于碳酸岩台地相环境中，众多研究成果认为该时期发育一条过纳雍的北东向台沟，控制了该时期锰矿的成矿，除了该带内沉积岩岩层相对较薄外，尚缺乏更多地质证据，包括控制该台沟的区域断层也很难直接识别。本次在大方鼎新镇水塘至周家寨一带的茅口组地层中发现大量同沉积变形构造，是台沟发育的直接证据。通过对其形态描述、发育层位并结合区域地质信息，认为该台沟演化具有递进式特征。 |
| 英文摘要: |
| Most of Guizhou province was in the carbonate platform sedimentary environment during the late Middle PermianAccording to the former study，it suggested that there was a NE-platform and trenching which controlled the formation of manganese ores，though the evidence remains insufficientThe bedding of sedimentary rocks is relatively thin，thus it is difficult to identify the regional faults directly in the study areaA comprehensive geological study has been conducted in the Shuitang - Zhoujiazhai area (Dingxin town，Dafang)In this study we report that a large number of syn-depositional deformation structures from Maokou formation which is the direct evidence for the existence of platform and trench faceThe results collectively suggest that the evolution of the platform and trench are featured by progressive type |
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