
地層劃分
Precise and careful stratigraphic classification is the base of all kinds of work.
正确而又精細的地層劃分是各項工作的基礎。
In the regional stratigraphic classification and correlation, the Lower Tertiary strata are absent in Guyang basin, Inner Mongolia.
在區域地層劃分與對比中,内蒙古固陽盆地缺少下第三系。
Using this method can not only avoid subjective random in the stratigraphic classification in single well, but also can give evidence to field horizon tracing.
應用此方法不僅避免了單井分層主觀隨意性,又對現場層位追蹤起到了一定的指導作用。
There are many sequence stratigraphic classification project of Yanchang formation in Ordos basin.
鄂爾多斯盆地三疊系延長組地層層序劃分方案較多。
This paper described the distribution of Cambrian strata and proposed a stratigraphic classification plan which accord with actual production.
指出了研究區寒武系地層的展布特征,提出了符合生産實際的地層劃分方案;
Production and main cognition:The main method of stratigraphic correlation and classification is cycle correlation.
主要采用旋回對比方法進行對比和劃分。
Based on basic shape classification of log curves and expert's experiences in logging stratigraphic correlation, a formal language for stratigraphic correlation is set up.
通過對測井曲線形态基元的劃分和對專家利用測井曲線進行地層對比經驗的歸納,建立了地層對比的形式語言描述規則庫。
Therefore, they can not become an independent and complete stratigraphic classification system.
不能形成獨立完整的地層分類系統。
The results revealed that clay minerals and their combination characteristics formed in Jurassic and Cretaceous offered proper evidence for stratigraphic classification and correlation;
結果表明,在侏羅系和白垩系兩個不同古環境下形成的粘土礦物及其組合特征,對地層劃分對比提供了一定的證據和幫助;
地層學分類(stratigraphic classification)是地質學中用于系統劃分和命名岩層序列的科學方法,其核心目的是通過建立統一标準揭示地球曆史演變規律。該術語由“stratum”(岩層)與“classification”(分類)構成,主要依據岩性特征、化石組合、形成年代和物理化學性質等指标進行層級劃分。
國際通用的地層學分類體系包含三大基礎分支:
當前國際地層學分類标準參照《國際地層指南》(International Stratigraphic Guide),該文件由國際地層分類分會定期修訂,為油氣勘探、古環境重建等應用提供基礎框架。我國現行《中國地層指南》同步采用這一分級體系,并在青藏高原等地層複雜區域取得突破性研究成果。
Stratigraphic Classification 是地質學中用于描述地層劃分與分類的術語,指根據地層的不同特征或屬性(如岩性、化石、形成時間等)将岩層系統劃分為不同單位的過程。以下為詳細解釋:
地層分類主要基于以下三類特征:
如需更深入的術語解析,可參考地質學專業詞典或教材(如、4的權威來源)。
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