There exists high risk for oil - gas resource exploration owing to the low study of sedimentary characteristics of cretaceous in jiyang depression 摘要济阳坳陷白垩系沉积特征的研究程度较低，使得这一层位的油气资源勘探存在较大风险。
With the same geological structural settings , the miocene sequence development of the shanwang , baojiahe , and qingshan basins are comparable 在相同构造背景下，山旺盆地、包家河盆地和青山盆地的中新世对应层位的层序发育特征具有可比性。
According to the correlation study of marine fossils , the occurence horizon of the fossil , the upper part of badaowan formation probably belongs to xihuangmur stage 根据海相化石对比，化石产出层位八道湾组上部的时代可能属西湟缪尔期。
In natural thermoluminescence of soil respect , it has determined the stratgraphy of sampling , and proved anomaly shape has little change with the sampling density 在土壤天然热释光测试方面，确定了取样层位，研究了取样密度变化对异常形态的影响。
All the pottery assemblages were in well - stratified sequences and could be the most invaluable materials in constructing the prehistoric cultural chronology of the area 由于出土的陶器全都层位关系明确，这些古物提供研究本地史前文化编年的宝贵资料。
Scientists subsequently found enhanced iridium levels at more than 100 end cretaceous sites worldwide and shocked quartz at more than 30 sites 世界各地的白垩纪末期遗址中，科学家发现了超过100处有铱含量高得异常的层位，采集到变形石英标本的遗址也超过30处。
An active measure for ground subsidence control is to move the exploited horizon upward to shallow area and make it close to the recharge and discharge area of groundwater 控制地面沉降的一个积极措施是将开采层位上移至浅层，使其接近地下水的补给区和排泄区。
The oil and gas was mainly accumulated in tiaohu and malang depressions in santanghu basin . oil - bearing reservoir is mainly in mid - permian and mid - later jurassic 三塘湖盆地的油气主要储集在盆地中部的条湖凹陷和马朗凹陷，储油层位主要在中二叠统和中下侏罗统。
Although the oil of type 2 is shallowly buried it is not affected by biodegradation while the neighboring , or inter - bedded oils of type 1 and type 3 are strongly biodegraded 而第二类原油油层之间或上下邻近层位的第一和第三类原油的油层则发生较强的生物降解作用。
