年代地层学
- 网络chronostratigraphy
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第三纪年代地层学进展
The advance in tertiary chronostratigraphy
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奥陶纪年代地层学研究评述
A Commentary on Ordovician Chronostratigraphy
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全球奥陶系年代地层学的研究&进展与问题
Study on global Ordovician chronostraticraphy & progress and problems
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国际埃迪卡拉系年代地层学研究进展与发展趋势
Advances in the Study on the Chronostratigraphy of the Ediacaran Period in the World and Developments in Future
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风化壳的年代地层学表现为,在残积层,从风化前锋向上,风化年龄由新到老;
At solution grooves , the chronostratigraphy of the red weathering crusts of carbonate rocks shows that , at residual layers , upwards from weathering front , the weathering age is from new to old ;
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即用浅表钻孔代替地质点,对近现代沉积物组合进行分类,判释沉积环境变化,结合年代地层学,建立浅表地层沉积序列。
In the new method , shallow drill wells replace geological sites and recent and modern sediment are classified to interpret the change of the sedimentary environment , and then in combination with the chronostratigraphic study near-surface sedimentary sequences are established .
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建立和完善全球年代地层系统是地层学研究的重要任务之一,是地球科学研究的重要基础性研究课题。
One of the important tasks of stratigraphy is establishing and perfecting the global chronostratigraphic chart , which is also a major basic topic in earth science .