山东青岛早白垩世遗迹化石和皱饰构造的指相意义  

ICHNOFOSSILS AND WRINKLE STRUCTURES AS FACIES INDICATORS FROM THE LOWER CRETACEOUS IN QINGDAO, SHANDONG, EASTERN CHINA

作　　者：杜圣贤 张园园[4] 李越[4] 张尚坤[1,2,3] 刘凤臣 宋香锁[1,2,3] 穆西南 周腾飞 周瑶琪[6] 卢辉楠[5] DU Sheng-xian;ZHANG Yuan-yuan;LI Yue;ZHANG Shang-kun;LIU Feng-chen;SONG Xiang-suo;MU Xi-nan;ZHOU Teng-fei;ZHOU Yao-qi;LU Hui-nan(Shandong Institute of Geological Sciences,Jinan 250013;Key Laboratory of Gold Mineralization Processes and Resources Utilization Subordinated to Ministry of Land and Resources,Jinan 250013;Key Laboratory of Metallogenic Geological Process and Resources Utilization in Shandong Province,Jinan,250013;State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment,Chinese Academy of Sciences,Nanjing 210008;Nanjing Institute of Geology and Palaeontology,Chinese Academy of Sciences,Nanjing 210008;China University of Petroleum(East China),Qingdao 266580)

机构地区：[1]山东省地质科学研究院,山东济南250013 [2]国土资源部金矿成矿过程与资源利用重点实验室,山东济南250013 [3]山东省金属矿产成矿地质过程与综合利用重点实验室,山东济南250013 [4]中国科学院南京地质古生物研究所和生物演化与环境卓越创新中心,现代古生物学和地层学国家重点实验室,江苏南京210008 [5]中国科学院南京地质古生物研究所,江苏南京210008 [6]中国石油大学(华东),山东青岛266580

出　　处：《地层学杂志》2020年第2期174-180,共7页Journal of Stratigraphy

基　　金：中国地质调查局项目(1212011120146);山东省重大创新工程:深地资源勘查开采专项(2017CXGC1608、2017CXGC1602);山东省古生物化石普查项目共同资助。

摘　　要：山东日青威盆地青岛地区中生代断陷构造盆地沉积下白垩统龙旺庄组和灵山岛组碎屑岩。即墨东北部丁字湾剖面龙旺庄组发现陆相遗迹化石Skolithos和Thallassinoides两个属,在灵山岛剖面灵山岛组海相地层中可见微生物成因的皱饰构造。这些原地生物-沉积证据表明早白垩世海水并未完全退出青岛地区,日青威断陷盆地内同时存在陆相和海相沉积。Early Cretaceous terrigenous depositional sequences are widely distributed from the Longwangzhuang and equivalent Lingshandao formations in the Rizhao-Qingdao-Weihai Sag Basin,Qingdao of Shandong Province,Eastern China.Ichnofossils Skolithos and Thalassinoides discovered from siltstones of the Longwangzhuang Formation at the Dingziwan section,Jimo are considered as indicators of a continental facies.Wrinkle structure as a kind of microbial induced sedimentary structure typically forming on the surface of sea floor was found from dark grey siltstones of the Lingshandao Formation respectively at the outcrop section and the Lingke-1 borehole in the Lingshan Island.Both in situ preserved biotic and sedimentary evidences illustrate that sea-water partly remained in the Qingdao area resulting in co-occurrence of Early Cretaceous marine and non-marine deposits in the Rizhao-Qingdao-Weihai Sag Basin.

关 键 词：遗迹化石 皱饰构造 沉积环境 早白垩世 青岛 

分 类 号：P534.53[天文地球—古生物学与地层学]