Paleozoic adakitic rocks in the northern Altyn Tagh, northwest China: Evidence for progressive crustal thickening beneath the Dunhuang Block

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• 作者：Weihang Bao^a ; ^b ; Xiaoping Long^c ; ^{longxp@nwu.edu.cn} ; Chao Yuan^a ; Min Sun^d ; Guochun Zhao^d ; Yujing Wang^e ; Yili Guan^a ; Yunying Zhang^a
• 关键词：Late Paleozoic ; Adakitic rocks ; Dunhuang Block ; Thickened lower crust ; Crustal evolution
• 刊名：Lithos
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：272-273
• 期：Complete
• 页码：1-15
• 全文大小：3160 K
• 卷排序：272

文摘

Three Late Paleozoic adakitic intrusions are discovered in the Dunhuang Block. The rocks were generated by partial melting of a thickened lower crus. The crustal thickening started prior to the Middle Devonian and lasted more than 50 Ma. The crustal thickness in the Early Carboniferous is thicker than that in the Late Devonian.