This paper analysed the carbon and oxygen isotope composition of brachiopods fossils from the Devonian Period in Sichuan Province.

本论文对来自四川龙门山泥盆纪的腕足化石进行碳、氧同位素分析。

youdao

During the Devonian period, northward of Longmen Mountain structural belt is located in northwest border of Up Yangtzee Ancient Land.

在泥盆纪期间，龙门山构造带北段位于上扬子古陆的西北边缘。

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The strata in Devonian period of Shuangwang area was divided in detail, going by new mapping theory and method of the regional geological survey.

本文采用新的区调填图理论和方法， 详细划分了双王地区的泥盆纪地层，论述了岩相古地理特征。

youdao

The Geopark's outstanding historical contribution, both in terms of the development of geological and archaeological sciences is astounding: from the Huttonian Theory, to the naming of the Devonian Period by Sedgwick and Murchison, and even Pengelly's discoveries informing worldwide public opinion as to the antiquity of man.

UNESCO: Global Geoparks