【摘要】 通过显微镜观察鉴定了准噶尔盆地中央坳陷重点探井——征1井早侏罗世孢粉化石.认为准噶尔盆地征沙村地区早侏罗世孢粉组合划分为两个:产于八道湾组的Cyathidites-Cycadopites孢粉组合和产于三工河组的Cyathidites-Classopollis孢粉组合.通过研究孢粉组分和母本植物的亲缘关系,得出准噶尔盆地中央坳陷早侏罗世植被主要由草本的真蕨植物和乔木、灌木的松柏类及银杏、苏铁类等组成,所反映古气候应属亚热带气候.更多还原

【Abstract】 According to palynological assemblages from the analysis of sporo-pollen sample collected in drilling hole,sporo-pollen assemblages of the Zheng 1 well in the central depression in the Junggar Basin were recognized by observing and identifying under microscope.The Lower Jurassic in the Zhengshacun of Juggar Basin can be divided into two sporo-pollen assemblages: the Cyathidites-Cycadopites assemblage from the Badaowan Formation and Cyathidites-Classopollis assemblage from Sangonghe Formation.By researching the kinship between the sporo-pollen assemblages and vegetation types,it is concluded that the Early Jurassic consists mainly of herbaceous Filicinae and arbor,Coniferales and ginkgo belonged to bush and cycad,and indicates that the paleoclimate belongs to subtropical climate.更多还原