小旋回 meaning in Chinese
editycle
epicycle
Examples
- On the direction of sequence stratigraphy theory , writer sets down unit framework in this gas field on the basis of analysis of logging data of 42 wells , seism synthesize and api of 17 wells and 155 . 5m core data of 8 wells . four key interface , fifteen three stage sequence interface are been set off in the research strata . the substrata are been divided and contrasted in controlling grade with low circle mode l
在层序地层学理论的指导下，用42口井的测井曲线、 17口井的地震合成记录以及波阻抗资料和8口井共155 . 5米的岩芯资料，建立了全区地层格架，在研究层段内，共划分了四个关键界面、十五个三级层序界面，在地层格架内分级控制，采用小旋回对比法对全区各层段小层进行了划分和对比。 - On the basis of study on petrology , volcanic geology , geochemistry , isotopic chronology , antitheses of the regional strata and 4 suits of volcanic rock stratum of the yanshan - liaoning area , the rhythm of yanshanian volcanic activity is divided into 1 gigantic - cycle , 4 cycles , 11 micro - cycles , 24 sub - cycles and many rhythms . in addition , the temporal and spatial evolution and regional contrast of every - level rhythms are discussed . 3 . based on the study on classifications of rhythm of volcanic activity and regional contrast , the petrology , mineralogy , geochemistry , and isotopic characteristics of every - level rhythms are discussed
2 、通过对燕辽地区燕山期发育的四套火山岩的岩石学、火山地质学、地球化学、同位素年代学的综合研究，通过运用综合方法进行区域地层对比和分析火山喷发盆地火山岩地层特征的基础上，将本区燕山期火山活动节律，划分为1个二级节律(大旋回) 、 4个三级节律(旋回) 、 11个亚三级节律(小旋回) 、 24个四级节律(亚旋回)和多个五级节律(韵律)等，论述了各级火山活动节律特征及其时空演化和区域对比。