CAJ | 학술논문

西湖凹陷是东海陆架盆地的含油气地质构造，其主要的生油和储油层为新生代的古近纪及新近纪沉积地层。古近系包括宝石组、平湖组、花港组，新近系包括龙井组、玉泉组、柳浪组、三潭组。以往对花港组地层的沉积时代有不同观点，对新近系地层的时代研究则较少。本文从各地层孢粉组合所反映的古气候特征，结合有孔虫、超微化石以及区域资料，对新生代地层各组的时代归属进行探讨，从而为区域地层对比及海洋地质深化研究提供借鉴。
서호요함시동해륙가분지적함유기지질구조，기주요적생유화저유층위신생대적고근기급신근기침적지층。고근계포괄보석조、평호조、화항조，신근계포괄룡정조、옥천조、류랑조、삼담조。이왕대화항조지층적침적시대유불동관점，대신근계지층적시대연구칙교소。본문종각지층포분조합소반영적고기후특정，결합유공충、초미화석이급구역자료，대신생대지층각조적시대귀속진행탐토，종이위구역지층대비급해양지질심화연구제공차감。
The Xihu sag is an oil and gas containing structure located in a basin on the East China Sea continental shelf. The main source bed and oil reservoir are the sedimentary formations of the Eogene and Neogene periods of the Neozoic era. The Eogene strata include the Baoshi, Pinghu, and Huagang formations, while the Neogene period strata include the Longjing, Yuquan, Liulang, and Santan formations. Different opinions exist regarding the sedimentary stages of the Huagang Formation, but there has been less study of the sedimentary stages associated with the Neogene strata. This paper uses the sporo-pollen complex recovered from the various sedimentary layers to reconstruct paleoclimatic conditions at the time of deposition, and together with the foraminiferal, nannofossi/, and other data, discusses the age of each of the Neogene formations, thereby providing a reference for the comparison and correlation of strata across the region, and an aid to future research in marine geology.