| 新疆准噶尔盆地和塔里木盆地二叠纪孢粉组合的比较及其植物区系和地层意义 |
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| 引用本文： | 欧阳舒,朱怀诚,詹家桢,王智.新疆准噶尔盆地和塔里木盆地二叠纪孢粉组合的比较及其植物区系和地层意义[J].地层学杂志,2004,28(3):193-207. |
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| 作者姓名： | 欧阳舒 朱怀诚 詹家桢 王智 |
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| 作者单位： | 1. 中国科学院南京地质古生物研究所,现代古生物学和地层学国家重点实验室,江苏南京,210008
2. 新疆石油管理局石油勘探开发研究院,新疆克拉玛依,834000 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，中国科学院知识创新工程项目，国家重点实验室基金 |
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| 摘 要： | 根据二十年来积累的准噶尔和塔里木盆地二叠纪孢粉组合序列资料 ,结合其他动植物化石证据 ,初步做了两地二叠纪孢粉生物地层对比 ,并讨论了植物区系性质 ,指出准噶尔盆地在晚石炭世早期已属亚安加拉区 ,塔里木盆地在早二叠世虽总体上属欧美区 ,但已混生若干安加拉—亚安加拉成分 ,中、晚二叠世基本上已属亚安加拉区。孢粉证据支持准噶尔板块在早石炭世已与哈萨克斯坦板块—西伯利亚板块对接、塔里木板块在早二叠世与准噶尔板块对接的假说。二叠纪时 ,两地处于亚热带—暖温带 (4 0°N以南 ) ,气候总体上为半干旱气候 ,但干旱程度并不严酷 ,局部地区或层位偶尔还形成薄煤层或煤线 ,准噶尔盆地还有干湿的周期性变化和年度的季节变化
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| 关 键 词： | 孢粉组合 植物区系 地层意义 二叠纪 准噶尔 塔里木 新疆 |
| 文章编号： | 0253-4959(2004)03-0193-15 |
| 修稿时间： | 2004年3月30日 |
COMPARISON OF PERMIAN PALYNOFLORAS FROM THE JUNGGAR AND TARIM BASINS AND ITS BEARING ON PHYTOPROVINCIALISM AND STRATIGRAPHY |
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| OUYANG Shu ,ZHU Huai-cheng ,ZHAN Jia-zhen and WANG Zhi.COMPARISON OF PERMIAN PALYNOFLORAS FROM THE JUNGGAR AND TARIM BASINS AND ITS BEARING ON PHYTOPROVINCIALISM AND STRATIGRAPHY[J].Journal of Stratigraphy,2004,28(3):193-207. |
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| Authors: | OUYANG Shu ZHU Huai-cheng ZHAN Jia-zhen and WANG Zhi |
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| Institution: | OUYANG Shu 1),ZHU Huai-cheng 1),ZHAN Jia-zhen 2) and WANG Zhi 2) |
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| Abstract: | Comparison of Permian palynofloras from the Junggar and Tarim Basins has resulted in a stratigraphic correlation table (Table 1) and new understanding of the phytoprovincial problem of Tarim during the Permian. The Junggar block had been part of the Subangara Area since the early Late Carboniferous (early Bashikirian). The Tarim block seemed still to belong to the Euramerican Province in the Early Permian, although in the assemblages already existed some Angara-Subangara elements in association with quite a number of relic Carboniferous spore taxa. A dramatic change of phytoprovincialism happened no later than the onset of Middle Permian when Peltaspermalean striate pollen with an aspect of Subangara dominated. The palynological evidence lends support to the assumptions that the collision of Junggar block with the Kazakhstan-Siberia blocks was during the late Hercynian time, and that of Tarim with the northern blocks (e.g. Junggar) was in the Early Permian. Both Junggar and Tarim were situated south to 40°N. and basically under the control of a warm and semiarid climate during the Permian, and Tarim was assumed to be a little drier than Junggar judging from the diversity of spore-pollen taxa, especially in the Middle-Late Permian. However, both regions were occasionally and regionally influenced by wet climate as evidenced by the rare occurrence of thin coal seams or lines. |
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| Keywords: | palynofloras Permian Junggar and Tarim Basins Xinjiang phytoprovincialisim |
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