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Reply to discussion of ‘Crustal fluid contamination in the Bushveld Complex, South Africa: an analogue for subduction zone fluid migration’ by Roger Scoon and Andrew Mitchell (2020)
International Geology Review ( IF 2.1 ) Pub Date : 2020-10-19 , DOI: 10.1080/00206814.2020.1830444
Erin Benson 1 , James A. D. Connolly 2 , Alan E. Boudreau 1
Affiliation  

ABSTRACT

In their discussion of our recent publication, Scoon and Mitchell (2020 Scoon, R., and Mitchell, A., 2020, Discussion of “Crustal fluid contamination in the Bushveld Complex, South Africa: An analogue for subduction zone fluid migration “by Benson, E., Connolly, J.A.D. and Boudreau, A.E. (2020): International Geology Review.[Taylor & Francis Online], [Web of Science ®] , [Google Scholar]) put forward a number of arguments against the hydromagmatic model of Bushveld Complex formation that we present. Their criticisms of our model focus primarily on the formation mechanisms of the discordant bodies present at Bushveld, namely the iron-rich ultramafic pegmatites and the dunite pipes. While this was a minor portion of our paper, we here review evidence in favor of a fluid-related origin for these discordant bodies, in contrast to the primarily magmatic origin that Scoon and Mitchell present.



中文翻译:

回复 Roger Scoon 和 Andrew Mitchell 对“南非布什维尔德复合体的地壳流体污染:俯冲带流体迁移的类似物”的讨论(2020 年)

摘要

在他们对我们最近的出版物 Scoon 和 Mitchell(2020年)的讨论中 Scoon, R.Mitchell, A.2020 年“南非布什维尔德复合体的地壳流体污染:俯冲带流体迁移的类似物”的讨论,作者:Benson, E.、Connolly, JAD 和 Boudreau, AE(2020 年) ) : 国际地质评论。[Taylor & Francis Online]、[Web of Science®]  、[Google Scholar]) 提出了许多反对我们提出的布什维尔德杂岩地层的水岩浆模型的论点。他们对我们模型的批评主要集中在 Bushveld 存在的不协调体的形成机制上,即富含铁的超镁铁质伟晶岩和纯晶管。虽然这是我们论文的一小部分,但我们在这里审查了支持这些不和谐天体的流体起源的证据,这与 Scoon 和 Mitchell 提出的主要岩浆起源形成对比。

更新日期:2020-10-19
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