海洋地质与第四纪地质2017，Vol.37Issue(3)：121-128,8.DOI:10.16562/j.cnki.0256-1492.2017.03.012
南黄海中部隆起二叠纪-三叠纪菊石的发现及其意义
DISCOVERY OF PERMIAN-TRIASSIC AMMONOIDS IN THE CENTRAL UPLIFT OF THE SOUTH YELLOW SEA AND ITS GEOLOGICAL IMPLICATIONS
摘要
Abstract
The Borehole CSDP-2 of the Continental Shelf Drilling Program (CSDP) is the only deep hole ever drilled on the central uplift of the South Yellow Sea (SYS).As a reference well,it is critical important to the dating of marine Paleo-Mesozoic deposits and reconstruction of the paleo-environmental pattern and paleo-tectonic settings of the SYS region.Ammonites are recognized as excellent index fossils for approaching the above objectives.So far,many ammonite fossils have been found in the core of CSDP-2,of which two,namely Roadoceras cf.sinense and Ophiceratidae,are specifically significant.The fossil of Roadoceras cf.sinense was discovered at the depth of 1475.2 meters.It is an index fossil distributed from Late Roadian to Wuchiapingian temporally and in the palaeoequatorial and bi-temperate regions spatially.The new finding of Roadocerascf.sinense from CSDP-2 extended the distribution area of this genus to the further north.On the other hand,Ophiceratidae,which is found at a depth of 851.9 meters and belongs to Griesbachian,is very close to the bottom of Triassic,and valuable for study of Permian and Triassic boundary.The discovery of the ammonites is important for confirming the stratigraphic age of the Permian and Triassic marine formations on the central uplift of the SYS region,recovering the paleo-environmental pattern,and providing the foundation for the future study of sedimentation,tectonic and petroleum resources.关键词
大陆架科学钻探/菊石/吴家坪阶/格里斯巴赫阶/南黄海Key words
South Yellow Sea/Continental Shelf Drilling Program/Ammonoid/Wuchiapingian/Griesbachian分类
海洋科学引用本文复制引用
郭兴伟,朱晓青,牟林,徐扬,庞玉茂,蔡来星,张训华,刘健,卢辉楠..南黄海中部隆起二叠纪-三叠纪菊石的发现及其意义[J].海洋地质与第四纪地质,2017,37(3):121-128,8.基金项目
国家海洋地质729专项项目(DD20160147) （DD20160147）
国家自然科学基金项目(41210005) （41210005）
国家重点基础研究发展计划项目(2013CB429701) （2013CB429701）
泰山学者工程(ts201511077) （ts201511077）
地质调查专项(121201004000150013) （121201004000150013）
