地质通报2017，Vol.36Issue(8)：1305-1318,14.
辽宁北部秀水盆地秀D1井孢粉组合及其地层意义
Spore-Pollen assemblages of Xiu D1 well in Xiushui basin, northern Liaoning Province and their stratigraphic singnificance
摘要
Abstract
This paper discusses the sporo-pollen fossils collected from Xiu D1 well in Xiushui basin,northern Liaoning Province.Analysis,identification and systematic studies show that sporo-pollen from the depth 62.1～1089.7 m in Xiu D1 well can be divided into 3 assemblages.The upper assemblage (at the depth of 62.1～339m) is represented by genus Cicatricosisporites-lmpardecispora-Pinuspollenites,and its geological age is early Cretaceous Valanginian-Hauterivian.The middle assemblage (381.5～699.3m) is represented by genus Densoisporites-Cicatricosisporites-Piceaepollenites,and its geological age is Early Cretaceous Berriassian.The lower assemblage (703.85～1089.7m) is represented by genus Osmundacidites-Klukisporites-Podocarpidites,and its geological age is Late Jurassic Tithonian.The characteristics of 3 sporo-pollen assemblages can be compared with features of formations with sporo-pollen-containing assemblages,such as the Dabeigou Formation in the northern area of Hebei Province,the Lower Cretaceous Yixian Formation and the Jiufotang Formation in the western area of Liaoning Province,and the Lower Cretaceous Huoshiling Formation as well as the Shahezi Formation on the southeastern margin of the Songliao Basin.The determination of stratigraphic age of sporo-pollen-containing assemblages is very important,which solves the stratigraphic division of column well and the correlation between stratigraphic column wells and regional strata.In addition,it provides detailed basic information for the study of regional stratigraphic paleontology.关键词
地层意义/孢粉组合/秀水盆地/辽宁北部Key words
stratigraphic significance/sporo-pollen assemblage/Xiushui basin/northern Liaoning Province分类
生物科学引用本文复制引用
丁秋红,陈树旺,李晓海,李文博,姚玉来..辽宁北部秀水盆地秀D1井孢粉组合及其地层意义[J].地质通报,2017,36(8):1305-1318,14.基金项目
中国地质调查局项目《松辽盆地外围西部盆地油气基础地质调查》(编号:DD20160163) （编号:DD20160163）
