黑龙江嘉荫县乌云煤矿与白山头地质剖面地层时代归属  

Geological time of Wuyun coal mine and Baishantou sections in Jiayin County,Heilongjiang Province

作　　者：郝慧[1,2] 冯广平[3] Ablaev Albert 杨健[1] 李承森[1] 

机构地区：[1]中国科学院植物研究所,北京100093 [2]北京工业大学,北京100124 [3]北京市科学技术研究院,北京100089 [4]Pacific Oceanological Institute,Russian Academy of Sciences

出　　处：《古地理学报》2010年第4期425-431,共7页Journal of Palaeogeography：Chinese Edition

基　　金：国家自然科学基金项目(编号:30470117)资助

摘　　要：对黑龙江省嘉荫县乌云煤矿和白山头剖面的孢粉样品进行了研究,结果表明:乌云煤矿剖面孢粉组合中温带类型的花粉(主要为莫米粉属、拟桦粉属、胡桃粉属)含量较高,另外也有一定数量的热带—亚热带分子;白山头剖面的主要花粉类型包括与桦木科有关的三孔粉属及松粉属和杉粉属等裸子植物类型。通过对这些孢粉类型的分布时代进行分析并与其他孢粉组合进行对比,认为乌云煤矿剖面及白山头剖面中观察到的含孢粉地层的时代为古新世。Palynological samples from the Wuyun and Baishantou sections in Jiayin County, Heilongjiang Province were studied in this work. The palynological assemblage in the Wuyun coal mine includes high percentage of temperate pollen, especially Momipites, Betulaceoipollenites, Juglanspollenites, and some tropical elements. The main pollen types found from the Baishantou section are tri-pore ones which are related to Betulaceae and Gymnosperms （such as Pinuspollenites and Taxodiaceaepollenites）.Comparing the age span of these palynological types with those in other localities, the authors consider that the Wuyun section and the part where we found pollen in the Baishantou section are the Paleocene in age.

关 键 词：黑龙江 乌云煤矿 白山头 古新世 孢粉 

分 类 号：P534.61[天文地球—古生物学与地层学]