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dc.date.accessioned 2021-10-12T15:23:08Z
dc.date.available 2021-10-12T15:23:08Z
dc.date.issued 2016
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/126468
dc.description.abstract The Auca Mahuida volcano (2.03–0.88 Ma) located east of the Andean thrust front in the; Neuqu´en basin (Argentina) hosts an oil system of thermogenic origin and is affected by the; NW–SE striking-faults. Intrusive bodies and the underlying Jurassic sediments constitute the; reservoir rocks. Aeromagnetic data collected in the Auca Mahuida area detected multiple; dipolar magnetic anomalies, many of which have reverse polarity. Palaeomagnetic measurements; on rock samples collected in the field together with available age determinations indicate; that the reversely magnetized sources were mainly emplaced during the Matuyama reverse; polarity chron while the normal polarity sources were emplaced during the Olduvai and/or; Jaramillo subchrons. The location and geometry of the intrusive bodies is poorly known and; the customary magnetic inversion is rendered difficult because of multiple natural remanent; magnetization directions. To address these difficulties, a voxel inversion was applied to model; the vector residual magnetic intensity (VRMI) transformation of the observed total magnetic; intensity data. The modelling showed a 1.5 km deep, subcircular ring-shaped intrusion below; the summit of the volcano and a series of NW–SE elongated, fault-controlled intrusive bodies; to depths up to 3–4 km. Our results show that magnetic data and VRMI modelling help resolve; the geometry of the shallow plumbing system of volcanoes with remanently magnetized; sources, and estimate the depth and geometry of potential oil reservoirs in volcanic areas. en
dc.format.extent 852-867 es
dc.language en es
dc.subject Magnetic anomaly: modelling and interpretation es
dc.subject Inverse theory es
dc.subject Gas and hydrate systems es
dc.subject Backarc basin processes es
dc.subject Physics of magma and magma bodies es
dc.subject South America es
dc.title Inverse modelling of the reversely magnetized, shallow plumbing system hosting oil reservoirs of the Auca Mahuida volcano (Payeina retroarc, Neuquén Basin, Argentina) en
dc.type Articulo es
sedici.identifier.other doi:10.1093/gji/ggv487 es
sedici.identifier.issn 0956-540X es
sedici.identifier.issn 1365-246X es
sedici.creator.person Paine, John es
sedici.creator.person De Ritis, Riccardo es
sedici.creator.person Ventura, Guido es
sedici.creator.person Longo, Laura Mariana es
sedici.creator.person Ravat, Dhananjay es
sedici.creator.person Speranza, Fabio es
sedici.creator.person Chiappini, Massimo es
sedici.subject.materias Geología es
sedici.subject.materias Física es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Astronómicas y Geofísicas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Geophysical Journal International es
sedici.relation.journalVolumeAndIssue vol. 204, no. 2 es


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)