贵州丹寨南皋地区中寒武统甲劳组的遗迹化石  

Trace fossils from the Middle Cambrian Jialao Formation at Nangao Town, Danzhai County, Guizhou Province, China.

作　　者：王约[1] 张海军[2] 杨晓刚[1] 李尚林[1] 王清山[1] 

机构地区：[1]中国地质大学地球科学与资源学院 [2]中国科学院青藏高原研究所,北京100085

出　　处：《地质通报》2006年第4期475-481,共7页Geological Bulletin of China

基　　金：贵州大学校立基金国家自然科学基金项目(批准号:40372023)资助成果之一。

摘　　要：贵州丹寨南皋是中国南方寒武系典型地层剖面的地区之一。描述了产自中寒武统甲劳组的遗迹化石Chondrites ich- nosp．,Beaconichnus jiaolaoensis(nov．ichnosp．),Bifungites ichnosp．,Diplichnites danzhaiensis(nov．ichnosp．),Monomor- phichnus taenia(nov．ichnosp．),Palaeophycus tubularis,Phycodes pedum,Teichichnus rectus,T. palmatu。对Beaconichnus Gevoers,1973和Qipanshanichnus Luo et Tao,1994进行了对比研究,认为这2个遗迹属为同一遗迹的不同部位,为同义名。甲劳组的遗迹化石组合属Seilacher(1964,1967)的Cruziana遗迹相,其沉积环境应为浪基面之下水动能中等的正常浅海环境。Nangao Town, Danzhai County, Guizhou Province, is one of the areas in southern China where there are typical Cambrian sections. The described trace fossils, including Chondrites ichnosp., Beaconichnus jiaolaoeusis （nov. ichnosp.）, Bifung/tes ichnosp., Diplichnites danzhaieusis （nov. ichnosp.）, Monomorphichnus taenia （nov. ichnosp.）, Palaeophycus tubularis, Phycodes pedum, Teichichnus rectus, T. palmatus, are found from the Middle Cambrian Jialao Formation in the area. Comparative study of Beaconichnus Gevoers, 1973 and Qipaushanichnus Luo et Tao, 1994 suggests that the two ichnogenera are synonyms, being different parts of the same ichnogenus. The trace fossils of the Jialao Formation belong to the Cruziana ichnofacies of Seilacher （1964, 1967）, and the Jialao Formation was deposited in a normal neritic environment with moderate hydrodynamic energy below the wave base.

关 键 词：遗迹化石 沉积环境 甲劳组 中寒武统 贵州丹寨 

分 类 号：P534.41[天文地球—古生物学与地层学] Q911.28[天文地球—地质学]