datum level

基本解释

Based on this, sedimentary facies, the subfacies, the microfacies are distinguished in every datum level cycle guided by well logging geology.
在此基础上，用测井地质学原理对各级次基准面旋回层序进行了沉积相、亚相及微相的识别；
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.
通过岩心标定测井，建立其基准面旋回的测井响应模型并划分中期基准面旋回；
High resolution stratigraphy is a new scientific technology. Identification and comparison of cycle change datum level are being its first researching problem.
高分辨率地层学是一门新学科和新技术，其核心是地层基准面变化旋回的识别和对比。