Sporopollen assemblages from the Cretaceous Yimin formation of the Hailar basin, Inner Mongolia, China

被引：0
|
作者：
Wan, CB [1 ]
Qiao, XY
Xu, YB
Sun, YW
Ren, Y
Jin, YD
Gao, P
Liu, TY
机构：
[1] Daqing Oilfield Co Ltd, Explorat & Dev Res Inst, Daqing 163712, Heilongjiang, Peoples R China
[2] Jilin Univ, Coll Earth Sci, Changchun 130061, Peoples R China
[3] Jilin Univ, Res Ctr Paleontol & Stratig, Changchun 130026, Jilin, Peoples R China
来源：
ACTA GEOLOGICA SINICA-ENGLISH EDITION | 2005年 / 79卷 / 04期
关键词：
Cretaceous; Barrerman-early Albian; sporopollen assemblage; angiosperms; Hailar Basin; Inner Mongolia;
D O I：
暂无
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Three sporopollen assemblages are recognized for the first time from the Cretaceous Yimin Formation in the Hailar Basin of eastern Inner Mongolia. They are (in ascending order): the Impardecispora-Aequitfiradites-Clavatipollenites assemblage; the Triporoletes-Pilosisporites-Asteropollis assemblage; and the Appendicisporites-Asteropollis-Tricolpites assemblage, distributed in Members 1, 2 and 3 of the Yimin Formation respectively. Recognition of this biostratigraphic sequence is very important for the division and correlation of the Yimin Formation in the basin. Meanwhile, the age of the Yimin Formation is considered to be Barremian to Early Albian based on the palynological data.
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页码：459 / 470
页数：12
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