专业释义
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标志层 - 引用次数：9
Synthesizely contrasted the Suonahu Formation profile of the Northern Qiangtang basin and Cuoqin basin of Miocene Epoch, used the intraclast ash rock as the marker bed of the Suonahu Formation.
对羌北盆地和措勤盆地中新世的唢呐湖组剖面作了综合对比，将内碎屑灰岩作为唢呐湖组的标志层。
参考来源 - 青藏高原腹地中新世陆相地层研究指准层标准层指标层
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双语例句
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But the area, bed thickness and marker bed length remain unchanged; that is to say, the geological section keeps balanced before and after deformation.
但其面积(体积)、地层厚度、各标志层的长度在变形前后保持相等，即变形前后的剖面是平衡的。
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Thedetermined structural deformation features through systematic tracing the marker bed in the area are geologically significant to correctly recognizing the formation and evolution of the orogen.
通过对区内标志岩层组合的系统追索，所确定的构造变形特征，对正确认识该造山带的形成演化具有重要地质意义。
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