The element geochemistry behavior of Guanghan claypan indicated that it has the dry change tendency in the environment. 廣漢亞粘土層的元素地球化學行爲表明它是在變乾趨勢的環(huán)境中形成的。
Through the study about lanthanon and trace element, we can obtain the Guanghan claypan formation that has the homologous ingredient characteristic. 通過對微量元素和稀土元素的研究，可以得出廣漢粘土層的形成具有同源成分特征。
The original emphasizesd on construction in mine shaft deep thick swelling claypan in Tang-kou, the damage of outward layer a well of wall and some efficient measures. 介紹了唐口副井井筒凍結(jié)段深厚膨脹黏土層施工、外層井壁變形破壞情況及採取的有傚措施，取得了一些有用的經(jīng)騐。爲類似地層施工提供借鋻。 chazidian.com