| 赣东北地区浅变质岩中微古植物及其形成时代讨论 |
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| 引用本文： | 文子才,楼法生,黄志忠,吴新华.赣东北地区浅变质岩中微古植物及其形成时代讨论[J].现代地质,2001,15(3):281-289. |
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| 作者姓名： | 文子才 楼法生 黄志忠 吴新华 |
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| 作者单位： | 江西省地质调查院 |
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| 基金项目： | 1∶25万景德镇幅上饶幅南昌幅区域地质调查项目(20001
300002091). |
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| 摘 要： | 赣东北地区大面积出露一套浅变质岩系 ,该套地层由于缺乏可靠的化石资料 ,其时代归属一直存在很大的争议。随着 1∶5万区调工作的开展 ,相继获得了一批微古植物资料 ,并对所获得的这些资料进行了系统的整理和研究。在研究区内共存在微古植物 73属 173种 ,据统计 ,其所代表的时代绝大部分为中新元古代。根据微古植物组合 ,结合地层层序及有关同位素的测定年龄数据 ,认为研究区浅变质岩系的形成时代应为中新元古代。
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| 关 键 词： | 中新元古代 微古植物 赣东北 |
| 文章编号： | 1000-8527(2001)03-0281-09 |
| 修稿时间： | 2001年2月12日 |
DISCUSSION ON MICROFLORA AND THEIR FORMING AGES IN EPIMETAMORPHIC ROCKS OF
NORTHEAST JIANGXI AREA |
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| WEN Zi-cai,LOU Fa-sheng,HUANG Zhi-zhong,WU Xin-hua.DISCUSSION ON MICROFLORA AND THEIR FORMING AGES IN EPIMETAMORPHIC ROCKS OF
NORTHEAST JIANGXI AREA[J].Geoscience——Journal of Graduate School,China University of Geosciences,2001,15(3):281-289. |
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| Authors: | WEN Zi-cai LOU Fa-sheng HUANG Zhi-zhong WU Xin-hua |
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| Abstract: | There are large areas of emergence of a suit of epimetamorphic series in northeast Jiangxi area and this suit of strata has a controversial age because of lacking of reliable fossil data. Along with the 1∶50,000 regional survey advance, a number of microflora data are obtained in succession and those data are systematized by the authors in the paper with the results of total 73 genera including 173 species of microflora existing in the study areas. According to the statistics,their representative ages are the mid-Neoproterozoic mainly.In the light of the constitutes of microflora and referring to the sequence of strata and related isotopic age,the authors hold that the forming age of epimetamorphic series in the study area should be mid-Neoproterozoic. |
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| Keywords: | mid-Neoproterozoic microflora northeast Jiangxi area |
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