datum level

基本解釋

Based on this, sedimentary facies, the subfacies, the microfacies are distinguished in every datum level cycle guided by well logging geology.
在此基礎上，用測井地質學原理對各級次基準面旋回層序進行了沉積相、亞相及微相的識別；
The well log response model of the datum cycle is developed through core calibration and well logging, classifying the middle-term cycle of datum level.
通過巖心標定測井，建立其基準面旋回的測井響應模型并劃分中期基準面旋回；
High resolution stratigraphy is a new scientific technology. Identification and comparison of cycle change datum level are being its first researching problem.
高分辨率地層學是一門新學科和新技術，其核心是地層基準面變化旋回的識別和對比。