...n 关键词】: 黄河源区 第四纪地层 古地理环境 [gap=1017]Keywords】: source region the Yellow River,the Quaternary strata,palaeogeographical environment ...
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建立并进一步完善了甘肃第四纪地层层序。
The Quaternary stratigraphic sequence in Gansu Province were established and were further perfected.
结果表明，马尔柯夫链分析方法是该区第四纪地层分析的一种行之有效的方法。
It has proved that Markov chain method is an effective method in analysis of the Quaternary sedimentary layers.
楔状构造是第四纪地层中较常见的一种现象，其成因复杂，具有丰富的环境信息。
Wedge structure is a common phenomenon in Qauternary strata. It has complicated origin and may provide a lot of environmental information.
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