The ages and tectonic setting of the Faja Eruptiva de la Puna Oriental, Ordovician, NW Argentina
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- 作者：Heinrich Bahlburga ; hbahlburg@uni-muenster.de" class="auth_mail" title="E-mail the corresponding author ; Jasper Berndtb ; Axel Gerdesc
- 关键词：Zircon U&ndash ; Pb geochronology ; Granitoid ; Magmatic recycling ; Ordovician ; Argentina
- 刊名：Lithos
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：256-257
- 期：Complete
- 页码：41-54
- 全文大小：3745 K
文摘
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We present a comprehensive U–Pb zircon geochronology data set on the Faja Eruptiva granitoids in NW Argentina.
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The age of the latest and main intrusive pulse is constrained to 444 Ma.
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Hf isotope data indicate significant crustal recycling and shed light on the unknown basement.
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The granitoids intruded in a sinistral strike-slip regime connected to the Oclóyic orogeny