Brief note on the silurian stratigraphy of eastern yunnan .
简论滇东的志留纪地层。
From the view of stratigraphy , they all belong to the cretaceous period .
从地层学上看,它们都属于白垩纪。
On outcrop sequence stratigraphy of ca rboniferous in dushan , guizhou .
贵州独山石炭系露头层序地层学研究。
Ponder on methodology of stratigraphy according to the recent heartening progress on stratigraphy of our country .
从近年来我国地层学的可喜进展谈地层学方法论。
How to use spatial databases to manage and analyze the geological data is undoubtedly an important means of technology in the sequence stratigraphy and lithofacies palaeogeography study .
如何将海量数据用空间数据库管理并加以分析,无疑是层序地层与岩相古地理研究中的重要技术手段。
Ammonites are one of extinct marine faunas at subphylum level , living for a length about 300 million-years ; they have high scientific values in stratigraphy and paleontology .
菊石是一类生存了将近3亿年、业已绝灭的海洋动物;它们的化石在地层学和古生物学具有极大的科学价值。
According to stanley finney a geology professor at california state university in long beach and chairman of the international commission on stratigraphy ( ics ) it is wrong to define a geological epoch on the basis of mere predictions .
Stratigraphy and typology are tow basic methods in archaeology .
地层学与形制学是考古学的两种基本方法。
Research of the stratigraphy and the petrology suggest the fact .
地层学和岩石学的研究证明了这一点。
The earth 's official calendar is kept by the international commission on stratigraphy ( ics ) the world 's principal authority on stratigraphy the study of earth 's history through the analysis of rock layers and layering .