Palaeobiology and Stratigraphy is one of the most important curriculums in the Earth Science.
《古生物学与地层学》是地球科学各专业最重要的基础课程之一。
Palaeobiology and Stratigraphy is one of the most important curriculums in the Earth Science.
《古生物学与地层学》是地球科学各专业最重要的基础课程之一。
Nonmarine sequence stratigraphy is used to analyze Jurassic depositional sequences in Tu-ha basin, and three sequences and one supersequence are divided in this paper.
本文应用陆相层序地层学方法对吐哈盆地侏罗系沉积层序进行
，划
套层序和一套超层序。
The relationship between microlithotype and the distribution of cleat in coal bed is discussed through a case from Hedong coalfield, combining microstratigraphy and statistics methods.
摘要利用显微地层学和统计学方法，以河东煤田中北部8＃煤层为例，研究煤层显微煤岩类型与煤层裂隙布的关系。
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