CAJ | 학술논문

为有效保护我国第一个"金钉子"--浙江常山黄泥塘剖面的同时,又能较好地满足一般性补充研究的需求和普通大众对"金钉子"剖面化石的兴趣爱好,剖面保护单位在"金钉子"剖面附近水库边开辟了一条新剖面.该剖面地层序列完整,出露新鲜,自下而上包括印渚埠组上部、宁国组和胡乐组下部.剖面化石丰富,保存精美,除丰富的笔石外,还含有一些腕足动物、三叶虫、叶虾类和粪化石,自下而上可识别出Corymbograptus deflexus带、Azygograptus suecicus带、Exigraptus clavus带、Undulograptus austrodentatus带和Acrograptus ellesae带等笔石带.整个剖面的岩石和笔石序列与黄泥塘"金钉子"剖面一致,能进行良好对比,可作为"金钉子"剖面的一般性替代剖面,从而为进一步开展达瑞威尔阶的后层型研究提供了新的证据来源.
위유효보호아국제일개"금정자"--절강상산황니당부면적동시,우능교호지만족일반성보충연구적수구화보통대음대"금정자"부면화석적흥취애호,부면보호단위재"금정자"부면부근수고변개벽료일조신부면.해부면지층서렬완정,출로신선,자하이상포괄인저부조상부、저국조화호악조하부.부면화석봉부,보존정미,제봉부적필석외,환함유일사완족동물、삼협충、협하류화분화석,자하이상가식별출Corymbograptus deflexus대、Azygograptus suecicus대、Exigraptus clavus대、Undulograptus austrodentatus대화Acrograptus ellesae대등필석대.정개부면적암석화필석서렬여황니당"금정자"부면일치,능진행량호대비,가작위"금정자"부면적일반성체대부면,종이위진일보개전체서위이계적후층형연구제공료신적증거래원.
In order to protect effectively the Huangnitang GSSP section of the Darriwilian Stage (Ordovi-cian), a new section (the Reservoir section) near the GSSP section was excavated, to meet the demands of further research and public fossil collecting. The Reservoir section is well-exposed and has a stratigraphic sequence well comparable to that of the GSSP section, including in ascending order the Yinchufu, Ningkuo and Hulo Formations. The section contains abundant exquisitely preserved fossils, including pyritized graptolites, brachiopods, trilobites, phyllocarids and aecal pellets. Five graptolite biozones, in ascending order the Cor ymbograptus deflexus , Azygograptus suecicus , Exigraptus clavus , Undulograptus austro-dentatus and Acrograptus ellesae Biozones are recognized in the section, showing a biostratigraphic sequence identical to that of the Huangnitang GSSP section. The reservoir section, with its complete sequence, abundant fossils and well exposure, may serve as a qualified supplementary section for the studies of the Darriwilian Stage.