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已黄铁矿化
相关语句
  pyritized
     some fossils were pyritized.
     有些化石已黄铁矿化
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  相似匹配句对
     some fossils were pyritized.
     有些化石黄铁矿化
短句来源
     When the cDNA was expressed in E.
     该cDNA在E .
短句来源
     To clone and analysize rfbE and fliC genes of E.
     根据发表的E.
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  pyritized
The new mineral was described from fractured, sericitized, and pyritized granodiorite adjacent to a quartz-arsenopyrite vein.
      
The ore zone is mainly composed of pyritized, sericitized and silicified granitoid, which has undergone variable degrees of cataclasis.
      
A mineralogical description of slavikite formed on pyritized phyllites in Medzev, Eastern Czechoslovakia, is given.
      
These spheroids are interpreted as the pyritized corpses of nannobacterial cells; if correct, this indicates that precipitation of iron sulfide was performed by these dwarf forms of bacteria, often associated with decaying organic matter.
      
Fortunately, oligospecific assemblages of pyritized radiolaria were yielded by twelve limestone beds of the Méouge section.
      
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Characteristics of Namurian faunas in Zhongwei and Zhongning regions of Ningxia are as follows : dominance by vagile molluscs, associated with benthic corals. bryozoans, bra-chiopods and echinoderms small body size as the result of high juvenile mortality and possible stunting; the trophic structure dominated by carnivorous or scavenging and deposit feeders, and less the filter feeders; some fossils were pyritized. All these characteristics are directly linked to the low oxygen levels. According to analysis...

Characteristics of Namurian faunas in Zhongwei and Zhongning regions of Ningxia are as follows : dominance by vagile molluscs, associated with benthic corals. bryozoans, bra-chiopods and echinoderms small body size as the result of high juvenile mortality and possible stunting; the trophic structure dominated by carnivorous or scavenging and deposit feeders, and less the filter feeders; some fossils were pyritized. All these characteristics are directly linked to the low oxygen levels. According to analysis of the features of litho-logy, Namurian palaeogeographic environment in the regions might be a deep basin in the shallow sea, in which the water was quiet and warm, dysaerobic, unstable and weak dynamic.

宁夏中卫、中宁地区纳缪尔期动物群以游移的软体动物为主,伴以底栖固着的珊瑚、苔藓动物、腕足类和棘皮动物;个体小;具有以食肉或食腐肉及食沉积物为主的独特营养结构,食悬浮物的滤食性生物较少;有些化石已黄铁矿化。上述特征均直接与贫氧环境的含氧度低有关。根据岩石学特征分析,本区纳缪尔期的古地理环境为温暖、贫氧、盐度不稳定、水动力较弱、能量较小的浅海深水盆地。

 
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