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海绿石砂岩是一个稳定的地层单元。Sandstone is a persistent stratigraphic unit.

海绿石砂岩是一个稳定的地层单元。The glauconite sandstone is a persistent stratigraphic unit.

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成分层具有地层单元的几何形态。The component layers have the geometry of stratigraphic units.

完善了本区第三系地层层序。The tertiary stratigraphic sequences in the area are consummated.

地质年代单位、岩石地层单位、年代地层单位。Geologic time unit, rock stratigraphic units and time stratigraphic unit.

扬子地层区、江南古陆地层区及华夏地层区。Jiangnan Old Land stratigraphic region and Cathaysian stratigraphic region.

这个地区的地层柱包括全部古生代岩系。The stratigraphic column in this district includes all the paleozoic formations.

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本文应用马尔柯夫链进行地层序列分析。The study of sedimentary cycles at analyzing stratigraphic sequence is important.

缩小水平比例尺一般有助于观察地层变化。A compressed horizontal scale commonly is helpful in seeing stratigraphic changes.

正确而又精细的地层划分是各项工作的基础。Precise and careful stratigraphic classification is the base of all kinds of work.

他解释说,地质时间尺度很大程度上基于对地层的记录。As he explains, the Geologic Time Scale is largely based on the stratigraphic record.

我们把它们当作实际上的地层单元来考虑,它们主要由岩浆沉积作用所产生。We regard them as actual stratigraphic units produced primarily by magmatic sedimentation.

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依此对区内晚第四纪的地层及古气候环境进行了初步讨论。Then a discussion has been done on the stratigraphic division and paleoclimate in this area.

长期以来,地质分层采用岩石地层单位界面。The stratigraphic horizons have long been divided according to a lithostratigraphic boundary.

论述了两个沉积小区的岩石地层的划分和对比。Quaternary stratigraphic division and correlation in the two sub-areas is discussed in detail.

岩性圈闭有不整合地层圈闭和岩性尖灭圈闭。The lithologic traps consist in unconformable stratigraphic trap and lithologic pinchout trap.

报告有338页、4张图片、地层学钻井记录和大量钻芯照片。The report includes 338 pages, four figures, a stratigraphic log and numerous core photographs.

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金矿化受层位、构造、蚀变控制明显。Gold mineralization is evidently controlled by stratigraphic horizon, structures and alteration.

通常,只有在地震资料与钻井资料相结合的地方,地层学的意义才是明显的。Stratigraphic significance commonly is apparent only where seismic data are tied with well data.

层次分析法为输气管道的运营管理提供了一种有效的方法。The stratigraphic analytic method is an effective way for management of gas pipeline's functions.