marker r bed标准层
marker bed of reflection反射标准层
marker bed method标志层法
marker bed horizon标志面
referential marker bed参考标准层
marker bed flattening标志层
good marker bed良好标志层
marker bed formation标准层
double-peak marker bed双峰标志层
marker king-size bed准绳层
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