檢視地层单位的原始碼

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| style="background: #FF2400" align= center|  '''<big>地层单位</big>'''
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|<center><img src=https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fbkimg.cdn.bcebos.com%2Fpic%2F5bafa40f4bfbfbed26885f8e72f0f736aec31f69&refer=http%3A%2F%2Fbkimg.cdn.bcebos.com&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=auto?sec=1663280425&t=74c73ca4fa833a095d8ba116cff8d672 width="300"></center>
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中文名;地层单位

外文名;stratigraphic unit

性质;组成地壳的岩层划分的单位

分类;岩石 、 生物和年代地层单位
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'''地层单位'''，就是根据岩性、岩相划分的岩石地层[[单位]]、根据化石划分的生物地层单位、根据地质时代划分的时间地层单位(年代地层单位)等的统称。有时也可以根据地层的其他[[特征]](如矿物成分、化学成分、放射性等)而划分为非正式地层单位。<ref>[https://wenku.so.com/d/5a5de37e1f92824acd70d46b4164c6c4 地层单位],360文库 , 2021年5月4日</ref>