Gravimetric determination of the continental-oceanic boundary of the Argentine continental margin (from 36°S to 50°S)

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This paper presents the gravimetric analysis together with seismic data as an integral application in order to identify the continental-oceanic crust boundary (COB) of the Argentine continental margin from 36°S to 50°S in a continuous way. The gravimetric and seismic data are made up of large grids...

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Autor principal: Arecco, M.A
Otros Autores: Ruiz, F., Pizarro, G., Giménez, M., Martínez, P., Ramos, V.A
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: Oxford University Press 2016
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SOUTH AMERICA
ARGENTINA
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100 1 |a Arecco, M.A. 
245 1 0 |a Gravimetric determination of the continental-oceanic boundary of the Argentine continental margin (from 36°S to 50°S) 
260 |b Oxford University Press  |c 2016 
270 1 0 |m Arecco, M.A.; Instituto de Geodesia y Geofísica Aplicadas, Facultad de Ingeniería de la Universidad de Buenos AiresArgentina; email: arecco.ma@gmail.com 
506 |2 openaire  |e Política editorial 
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520 3 |a This paper presents the gravimetric analysis together with seismic data as an integral application in order to identify the continental-oceanic crust boundary (COB) of the Argentine continental margin from 36°S to 50°S in a continuous way. The gravimetric and seismic data are made up of large grids of data obtained from satellite altimetry and marine research. The methodology consists of three distinct methods: (i) the application of enhancement techniques to gravimetric anomalies, (ii) the calculation of crustal thinning from 3-D gravity inversion modelling of the crust-mantle discontinuity and (iii) 2-D gravimetric modelling supported by multichannel reflection and refraction seismic profiles. In the first method, the analytic signal, Theta map, and tilt angle and its horizontal derivative were applied. In the second method, crustal thickness was obtained as the difference in the depths of the crystalline basement and the crust-mantle discontinuity; the latter was obtained via gravimetric inversion. Finally, 2-D modellingwas performed from free-air anomalies in two representative sections by considering as restriction surfaces those coming from the interpretation of seismic data. The results of the joint application of enhancement techniques and 2-D and 3-D modelling have enabled continuous interpretation of the COB. In this study, the COB was determined continuously from the integration of 2-D profiles of the enhancement techniques, taking account of crustal thickness and performing 2-D gravimetric modelling. The modelling technique was complemented by regional studies integrated with multichannel seismic reflection and seismic refraction lines, resulting in consistent enhancement techniques. © The Authors 2015.  |l eng 
593 |a Instituto de Geodesia y Geofísica Aplicadas, Facultad de Ingeniería de la Universidad de Buenos Aires, Las Heras, Buenos Aires, 2214, Argentina 
593 |a Instituto Geofísico Sismológico Volponi, Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de San Juan, Ruta 12 Km 17, Jardín de los Poetas, Rivadavia, San Juan, Argentina 
593 |a Instituto Geofísico Sismológico Volponi, CONICET- Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de San Juan, Ruta 12 Km 17, Jardín de los Poetas, Rivadavia, San Juan, Argentina 
593 |a Instituto de Estudios Andinos (IDEAN), CONICET- Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes, Buenos Aires, 2160, Argentina 
690 1 0 |a COMPOSITION OF THE CONTINENTAL CRUST 
690 1 0 |a COMPOSITION OF THE OCEANIC CRUST 
690 1 0 |a CONTINENTAL MARGINS 
690 1 0 |a DIVERGENT 
690 1 0 |a GRAVITY ANOMALIES AND EARTH STRUCTURE 
690 1 0 |a GRAVIMETRIC ANALYSIS 
690 1 0 |a REFRACTION 
690 1 0 |a SEISMIC RESPONSE 
690 1 0 |a SEISMIC WAVES 
690 1 0 |a SEISMOLOGY 
690 1 0 |a STRUCTURAL GEOLOGY 
690 1 0 |a COMPOSITION OF THE CONTINENTAL CRUSTS 
690 1 0 |a COMPOSITION OF THE OCEANIC CRUSTS 
690 1 0 |a CONTINENTAL MARGIN 
690 1 0 |a DIVERGENT 
690 1 0 |a GRAVITY ANOMALIES AND EARTH STRUCTURES 
690 1 0 |a THREE DIMENSIONAL COMPUTER GRAPHICS 
690 1 0 |a CONTINENTAL CRUST 
690 1 0 |a CONTINENTAL MARGIN 
690 1 0 |a GRAVIMETRY 
690 1 0 |a GRAVITY ANOMALY 
690 1 0 |a OCEANIC CRUST 
690 1 0 |a SEISMIC DATA 
651 4 |a SOUTH AMERICA 
651 4 |a SOUTH AMERICA 
651 4 |a ARGENTINA 
700 1 |a Ruiz, F. 
700 1 |a Pizarro, G. 
700 1 |a Giménez, M. 
700 1 |a Martínez, P. 
700 1 |a Ramos, V.A. 
773 0 |d Oxford University Press, 2016  |g v. 204  |h pp. 366-385  |k n. 1  |p Geophys. J. Int.  |x 0956540X  |w (AR-BaUEN)CENRE-4841  |t Geophysical Journal International 
856 4 1 |u https://www.scopus.com/inward/record.uri?eid=2-s2.0-84958640221&doi=10.1093%2fgji%2fggv433&partnerID=40&md5=c80cfe4a8f50e9f622a1e17689057886  |y Registro en Scopus 
856 4 0 |u https://doi.org/10.1093/gji/ggv433  |y DOI 
856 4 0 |u https://hdl.handle.net/20.500.12110/paper_0956540X_v204_n1_p366_Arecco  |y Handle 
856 4 0 |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0956540X_v204_n1_p366_Arecco  |y Registro en la Biblioteca Digital 
961 |a paper_0956540X_v204_n1_p366_Arecco  |b paper  |c PE 
962 |a info:eu-repo/semantics/article  |a info:ar-repo/semantics/artículo  |b info:eu-repo/semantics/publishedVersion 
999 |c 77284 

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