贵州青岩中三叠世安尼期琥珀及其意义  

Anisian(Middle Triassic)Amber from Qingyan Section,Guizhou Province and Its Significance

作　　者：田垚铠 楚道亮 曹怡然 Jacopo Dal Corso Guido Roghi 宋海军[1] 田力[1] 刘传远 贺箫 缪雪 张世岩 舒文超 童金南[1] Tian Yaokai;Chu Daoliang;Cao Yiran;Corso Jacopo Dal;Roghi Guido;Song Haijun;Tian Li;Liu Chuanyuan;He Xiao;Miao Xue;Zhang Shiyan;Shu Wenchao;Tong Jinnan(State Key Laboratory of Biogeology and Environmental Geology,School of Earth Sciences,China University of Geosciences,Wuhan 430074,China;Istituto di Geoscienze e Georisorse,Consiglio Nazionale delle Ricerche,Padova 35131,Italy;Geological Museum of Guizhou,Guiyang 550081,China)

机构地区：[1]中国地质大学生物地质与环境地质国家重点实验室,地球科学学院,湖北武汉430074 [2]国家研究委员会地球科学与地质资源研究所,意大利帕多瓦351313 [3]贵州地质博物馆,贵州贵阳550081

出　　处：《地球科学》2024年第4期1515-1523,共9页Earth Science

基　　金：基础地质调查项目(No.CDD2101-03);国家自然科学基金项目(Nos.42030513,42072025).

摘　　要：中-晚三叠世是现代型生态系统构建的关键时期,系统研究该时期生物与环境的协同演变过程对揭示生物复苏机制和生态系统重建规律具有重要意义.琥珀是探讨中-晚三叠世植物演化和古气候演变的重要载体.对青岩剖面雷打坡段的琥珀和伴生的植物化石开展研究,并将全球的中-晚三叠世琥珀的分布与湿润事件进行对比分析.结果发现青岩琥珀是由松柏类植物伏脂杉生产,琥珀的出现与松柏类植物的辐射演化有关.菊石生物地层表明含有琥珀的地层属于中三叠世安尼期Pelsonian亚期.认为琥珀的产出与湿润事件具有对应性,说明湿润事件可能是中-晚三叠世琥珀频繁出现的重要原因.The Middle-Late Triassic was a critical period for the construction of modern ecosystems,and a systematic study of the co-evolution of organisms and the environment during this period is significant for revealing the mechanisms of biological recovery and the reconstruction of ecosystems.Amber is important for discussing the evolution of plants and paleoclimate in the Middle to Late Triassic.Here,it reports for the first time the finding of amber in an Anisian marine succession in Qingyan Section,South China,which was located in the north-eastern Tethys.Ammonoid biostratigraphy gives a Pelsonian age for the layers bearing amber.Amber has been recovered in close association with plant remains identified as Voltzia sp.,indicating that this plant has likely exuded the resin.The fact that fossil resin is restricted only within humid events strongly indicates a climatic control on resin production during the Triassic.

关 键 词：中三叠世 安尼期 琥珀 湿润事件 贵州青岩 地层学 

分 类 号：P534[天文地球—古生物学与地层学]