地质科技情报2017，Vol.36Issue(3)：1-6,6.DOI:10.19509/j.cnki.dzkq.2017.0335
新疆阿合奇县石炭系别根他乌组孢粉化石的发现及地质意义
Discovery of Sporopollen Fossils of Carboniferous Biegengtawu Formation in Aheqi,Xinjiang,and Its Paleoclimate Significance
摘要
Abstract
Abudant sporopollen fossils,including 38 genera and 65 species are found for the frist time in the lower part of Carboniferous Biegengtawu Formation in Sepabayi area,Aheqi county,Xinjiang.According to the characteristics and percentage of the sporopollen fossil species,the sporopollen assemblage is named Protohaploxypinus-Potonieisporites-Hamiapollenites.The combination is characterized by a large number of double-banded ribbed pollen,high content of Protohaploxypinus,Potonieisporites and Hamiapollenites,low content of Striatolebachiites and Noeggerathiopsidozonotrilete with the presence of Cordaitina.The palynological assemblage corresponds to the Late Carboniferous sporopollen assemblage of the Chepaizi in Xinjiang established by predecessors,and it is significantly different from the sporopollen assemblage of the Batamayineishan Formation.So the age of sporopollen assemblage belongs to the Luosuan Stage to the Huashibanian Stage,the Early-mid term of Late Carboniferous,the equivalent of the international Bashkirian-Moscovian period.Its plant both have the Euramerican Province and the Angaran Province characteristics,and should belong to Subangaran Province.The evidence of the sporopollen to support the hypothesis that Tarim plate and the Junggar plate part of the splicing occurred earlier than the Late Carboniferous.The climate was generally semi-arid,but the degree of drought was not severe,with partly found thin coal seams or coal lines.关键词
孢粉/石炭纪/别根他乌组/塔里木盆地/新疆Key words
sporopollen fossils/Carboniferous/Biegengtawu Formation/Tarim Basin/Xinjiang分类
生物科学引用本文复制引用
王庆同,陈伟,马锦龙,杨宝忠,张新勇,阎琨,张维昕,柳晓丹..新疆阿合奇县石炭系别根他乌组孢粉化石的发现及地质意义[J].地质科技情报,2017,36(3):1-6,6.基金项目
中国地质调查局地质调查项目“新疆1∶5万卡克、色帕巴衣幅区域地质矿产调查”(1212011220661) （1212011220661）
“新疆哈拉奇地区区域地质矿产调查”(1212011120495) （1212011120495）
