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J4 ›› 2014, Vol. 20 ›› Issue (3): 488-.

• 学术讨论与争鸣 • 上一篇    

对“燕山早期花岗岩基印支期侵位的岩浆动力学证据及构造意义: 基于南岭8个岩体侵位年龄计算结果”的质疑

汪相   

  • 出版日期:2014-09-20 发布日期:2014-09-24

Comment on “Magma-dynamic Evidence for Indosinian
Emplacement and Tectonic Implication of the Early Yanshanian
Granite Batholiths, South China: Based on Estimates of
Emplacement Age for the 8 Granite Batholiths in Nanling Range”

WANG Xiang   

  • Online:2014-09-20 Published:2014-09-24

摘要:

     基于构造学、岩石学和矿床学的地质事实,本文认为南岭地区燕山早期同造山花岗岩的岩浆形成、侵位和结晶在一
个很短的时间段内完成,其时间可以用锆石U-Pb年龄代表。因此, 章邦桐等(2014) 一文的结论应该是不成立的。

关键词: 锆石U-Pb年龄;花岗岩基;燕山运动;南岭

Abstract:

On the basis of tectonic, petrological and metallogenic observations, this paper suggests that the generation, emplacement
and consolidification of the early Yanshanian granitic magmas in the Nanling Range took place nearly in the identical time, represented by their zircon U-Pb ages. In consequence, the conclusion of Zhang et al. (2014) should be unrealistic.

Key words: Zircon U-Pb age, Granitic batholith, Yanshanian Movement, Nanling Range