The petrogenesis of the Pliocene Araral stratovolcano in the Andean Central Volcanic Zone, Northern Chile
| dc.contributor.advisor | Le Roux, Petrus | |
| dc.contributor.advisor | González-Maurel, Osvaldo | |
| dc.contributor.author | Mashego, Ramolokwane | |
| dc.date.accessioned | 2025-09-08T10:11:29Z | |
| dc.date.available | 2025-09-08T10:11:29Z | |
| dc.date.issued | 2025 | |
| dc.date.updated | 2025-09-08T10:08:43Z | |
| dc.description.abstract | The Altiplano-Puna Volcanic Complex (APVC) is a silicic volcanic complex in the Central Andean Volcanic Zone (CVZ). The APVC is underlain by the thickest known crust in a continental arc setting and the largest known magma body – the Altiplano-Puna Magma Body (APMB). Lavas of the APVC and CVZ are compositionally heterogeneous with elevated Sr isotope ratios relative to mantle-derived lavas and the rest of the Andean Volcanic Arc. The lavas are produced by subduction-induced magmatism and magma differentiation processes, such as crustal assimilation as the magma ascends through the thick crust. The APMB is a large regional melt anomaly proposed to be the source of APVC ignimbrites and the lavas of the APVC have a decreased degree of interaction with the APMB towards its margins. Mafic volcanism in the APVC is rare and is concentrated along the western margin of the APMB. These mafic lavas are predominantly Quaternary in age with some Pliocene lavas. Mafic volcanism in the APVC, and more specifically mafic volcanism during the Pliocene, is understudied. | |
| dc.identifier.apacitation | Mashego, R. (2025). <i>The petrogenesis of the Pliocene Araral stratovolcano in the Andean Central Volcanic Zone, Northern Chile</i>. (). Universiy of Cape Town ,Faculty of Science ,Department of Geological Sciences. Retrieved from http://hdl.handle.net/11427/41715 | en_ZA |
| dc.identifier.chicagocitation | Mashego, Ramolokwane. <i>"The petrogenesis of the Pliocene Araral stratovolcano in the Andean Central Volcanic Zone, Northern Chile."</i> ., Universiy of Cape Town ,Faculty of Science ,Department of Geological Sciences, 2025. http://hdl.handle.net/11427/41715 | en_ZA |
| dc.identifier.citation | Mashego, R. 2025. The petrogenesis of the Pliocene Araral stratovolcano in the Andean Central Volcanic Zone, Northern Chile. . Universiy of Cape Town ,Faculty of Science ,Department of Geological Sciences. http://hdl.handle.net/11427/41715 | en_ZA |
| dc.identifier.ris | TY - Thesis / Dissertation AU - Mashego, Ramolokwane AB - The Altiplano-Puna Volcanic Complex (APVC) is a silicic volcanic complex in the Central Andean Volcanic Zone (CVZ). The APVC is underlain by the thickest known crust in a continental arc setting and the largest known magma body – the Altiplano-Puna Magma Body (APMB). Lavas of the APVC and CVZ are compositionally heterogeneous with elevated Sr isotope ratios relative to mantle-derived lavas and the rest of the Andean Volcanic Arc. The lavas are produced by subduction-induced magmatism and magma differentiation processes, such as crustal assimilation as the magma ascends through the thick crust. The APMB is a large regional melt anomaly proposed to be the source of APVC ignimbrites and the lavas of the APVC have a decreased degree of interaction with the APMB towards its margins. Mafic volcanism in the APVC is rare and is concentrated along the western margin of the APMB. These mafic lavas are predominantly Quaternary in age with some Pliocene lavas. Mafic volcanism in the APVC, and more specifically mafic volcanism during the Pliocene, is understudied. DA - 2025 DB - OpenUCT DP - University of Cape Town KW - Pliocene Araral stratovolcano KW - Andean Central Volcanic Zone KW - northern Chile LK - https://open.uct.ac.za PB - Universiy of Cape Town PY - 2025 T1 - The petrogenesis of the Pliocene Araral stratovolcano in the Andean Central Volcanic Zone, Northern Chile TI - The petrogenesis of the Pliocene Araral stratovolcano in the Andean Central Volcanic Zone, Northern Chile UR - http://hdl.handle.net/11427/41715 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/41715 | |
| dc.identifier.vancouvercitation | Mashego R. The petrogenesis of the Pliocene Araral stratovolcano in the Andean Central Volcanic Zone, Northern Chile. []. Universiy of Cape Town ,Faculty of Science ,Department of Geological Sciences, 2025 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/41715 | en_ZA |
| dc.language.iso | en | |
| dc.language.rfc3066 | eng | |
| dc.publisher.department | Department of Geological Sciences | |
| dc.publisher.faculty | Faculty of Science | |
| dc.publisher.institution | Universiy of Cape Town | |
| dc.subject | Pliocene Araral stratovolcano | |
| dc.subject | Andean Central Volcanic Zone | |
| dc.subject | northern Chile | |
| dc.title | The petrogenesis of the Pliocene Araral stratovolcano in the Andean Central Volcanic Zone, Northern Chile | |
| dc.type | Thesis / Dissertation | |
| dc.type.qualificationlevel | Masters | |
| dc.type.qualificationlevel | MSc |