| 塔里木盆地于奇地区三叠纪孢粉组合 |
| |
| 引用本文： | 刘格升,魏玲.塔里木盆地于奇地区三叠纪孢粉组合[J].华南地质与矿产,2007(4):56-63. |
| |
| 作者姓名： | 刘格升 魏玲 |
| |
| 作者单位： | 1. 山西地质矿产劫查开发局214地质队,山西,运城,044000
2. 中国石化西北分公司勘探开发研究院,乌鲁木齐,830011 |
| |
| 摘 要： | 对新疆塔里木盆地于奇地区钻孔中三叠纪泥岩孢粉的研究,以优势属建立了3个孢粉组合。下部Limatulasporites-Lundbladispora-Taeniaesporites组合产于柯吐尔组,蕨类植物孢子占优势成分,以具纹饰的三缝孢子及腔状三缝孢子为主,裸子植物花粉以具肋双气囊花粉为主,地质时代为早三叠世;中部Punctatisporites-Aratrisporites组合产于阿克库勒组,蕨类植物孢子以光面圆形三缝孢子和单缝孢类为优势成分,裸子植物花粉以无肋双气囊花粉为主,地质时代为中三叠世;上部Dictyophyllidites-Cyclogranisporites-Alisporites组合产于哈拉哈塘组,蕨类植物孢子常见光面三角形三缝孢子和具纹饰的三缝孢子,裸子植物花粉以无肋双气囊花粉为主,地质时代为晚三叠世。
|
| 关 键 词： | 三叠纪 孢粉 塔里木盆地 |
| 文章编号： | 1007-3701（2007）04-0056-08 |
| 收稿时间： | 2007-09-28 |
| 修稿时间： | 2007年9月28日 |
Triassic Palynological Assemblages from Yuqi, Tarim Basin |
| |
| LIU Ge-sheng,WEI Ling.Triassic Palynological Assemblages from Yuqi, Tarim Basin[J].Geology and Mineral Resources of South China,2007(4):56-63. |
| |
| Authors: | LIU Ge-sheng WEI Ling |
| |
| Abstract: | According to the research of Triassic sporopollen assemblages in mudstones from the drll of Yuqi area in Tarim Basin,Sinkiang,three sporopollen fossil assemblages were identified by the dominant genera.The Limatulasporites-Lundbladispora-Taeniaesporites assemblage in the lower part,whose geological time is Early Triassic,is produced at the Ketu'er Formation,in which the dominant elements are the spores of fern that are predominated by trilete spores with ornamentations and cavity-shaped trilete spores.The pollen of gymnosperms is mainly double ballonet pollen with ribs.The Punctatisporites-Aratrisporites assemblage in the middle part,whose geological time is Middle Triassic,is produced at the Akekule Formation,in which the ferns are predominated by the glazed and rounded trilete spores and monolete spores,the pollen of gymnosperms are predominated by the double ballonet pollen with no ribs.The Dictyophyllidites-Cyclogranisporites-Alisporites assemblage in the upper part,whose geological time is Late Triassic,is produced at Halahatang Formation,in which the ferns are predominated by the glazed and triangular trilete spores and trilete spores with ornamentations,the pollen of gymnosperms are predominated by the double ballonet pollen with no ribs. |
| |
| Keywords: | Triassic sporopollen assemblages Tarim Basin |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
