Along-strike segmentation of the Abanico Basin, central Chile: New chronological, geochemical and structural constraints

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• 作者：Jose Piquer^a ; ^b ; ^{jose.piquer@uach.cl} ; Pete Hollings^c ; ^{pnhollin@lakeheadu.ca} ; Orlando Rivera^d ; ^{ORive005@em.codelco.cl} ; David R. Cooke^a ; ^e ; ^{d.cooke@utas.edu.au} ; Michael Baker^a ; ^e ; ^{michael.baker@utas.edu.au} ; Francisco Testa^a ; ^e ; ^{f.j.testa@utas.edu.au}
• 关键词：Andes ; Central Chile ; Abanico Basin ; Geochronology ; Thermochronology ; Geochemical evolution
• 刊名：Lithos
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：268-271
• 期：Complete
• 页码：174-197
• 全文大小：3939 K
• 卷排序：268

文摘

The Abanico Basin in central Chile can be divided into two main segments. The two segments are separated by a major orogen-oblique fault system. The two segments have different stratigraphic and intrusive histories. Igneous rocks of each of the two segments have different geochemical evolutions. Both segments were affected by a major exhumation event at 7–2 Ma.