| 西秦岭的志留系 |
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| 引用本文： | 傅力浦
,李跃西
,宋礼生
,温玉领.西秦岭的志留系[J].地层学杂志,1983(4). |
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| 作者姓名： | 傅力浦 李跃西 宋礼生 温玉领 |
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| 摘 要： | <正> 西秦岭西段的志留系,最早由叶连俊、关士聪(1944)报道,白龙江群代表古道岭灰岩以下的一套浅变质岩系。通过近年来工作的结果,白龙江群包括下泥盆统,志留系下、中、上三统,及上奥陶统和更老的地层,如下表所示:
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The Silurian of western Qinling |
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| Abstract: | In this paper Baiyigou section, Nanshimengou section and Xiaolianggou section are selected as type sections of Silurian in Western Qinling. Lower Silurian Tewo Group divided into three formations, S Anzigou formation (Akidograptus zone, Diplograptus modestus zone, Pristiograptus leei zone, Pernerograptus limaiulus layer, and Rastrites approximates layer), S} Gezi formation (Monogr-aptus sedgtvickii zone, and Spirograptus turriculatus zone), S Jiannigou formation (Okaavites spiralis zone). Middle Silurian Zhouqu Group containing two formations, S21 Xiaolianggou formation (Cyrto-graptus sakmaricus zone and C. insectus zone), S22 Miaogou formation (Stegospira nucleola zone). Upper Silurian Bailongjiang Group can be subdivided into two formations, S31 Hongshuigou formation (Protathyris ingens-Atrypoidea quadrata assemblege or Spathognathotus silurica zone), S32 Nanshimengou formation (Atrypoidea-Gannania zone or Ligonodina elcgans fs. zone or Heyuncunoccras zone). |
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