...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of the Geological Society of India >First Report of Early Proterozoic Microfossils from the Bijawar Group of Rocks in Harda District, Madhya Pradesh
【24h】

First Report of Early Proterozoic Microfossils from the Bijawar Group of Rocks in Harda District, Madhya Pradesh

机译：中央邦哈达地区比哈瓦尔岩石早期元古代微化石的首次报道

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the course of microscopic examination of the recrystallised quartz arenites (locally named chert breccia) from the Bijawar rocks in Harda district, M.P., a number of organic bodies, mainly filaments and solitary spheroids and polygonal bodies, were detected by the authors early in 1994. Thin sections of these rocks were re-examined and the presence of microfossils in the above rocks were confirmed. Remnants of filamentous cyanobacteria belonging to the genera Gunflintia, Archaeorestis, and solitary spherical and polygonal bodies including Eosphaera, Huroniospora and some new forms were noted in the thin sections of these rocks. The Gunflintia-Huroniospora- Archaeorestis assemblage is known from the Gunflint chert of Ontario, Canada, from Early Proterozoic horizons, and the equivalents are known from the Franceville Group of Gabon, S. Africa and in the other parts of the world. The finding of these forms in the Bijawar rocks helps in assigning the age of these horizons as Lower Proterozoic (commonly known as belonging to Lower to Middle Proterozoic).
机译：作者在1994年初对哈达地区比哈瓦尔（Bijawar）岩石中的重结晶石英砂进行了显微镜检查（当地名称为角砾岩角砾岩），发现了许多有机体，主要是细丝和孤立的球体和多边形。再次检查了这些岩石的薄片，并确认了上述岩石中存在微化石。在这些岩石的薄层中发现了属于Gunflintia属，Archeaerestis属以及孤立的球形和多边形小体的丝状蓝细菌的残留物，包括Eosphaera，Huroniospora和一些新形式。 Gunflintia-Huroniospora-Archeaerestis组合从元古代早期的加拿大安大略省的Gunflint cher石中获知，而等效物则从非洲加蓬的Franceville集团和世界其他地方得知。在比贾瓦尔岩石中发现这些形态有助于将这些层的年龄指定为下元古代（通常称为下元古代至中元古代）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号