Magnetic susceptibility mapping of the Cambrian El Hongo pluton, Eastern Sierras Pampeanas, Argentina
A map of bulk magnetic susceptibility was obtained on El Hongo trondhjemite, a small Cambrian pluton intruding the metamorphic basement in Eastern Sierras Pampeanas, Argentina, based on systematic magnetic susceptibility measurement at 450 sites using a SM30 susceptibility meter. Samples were collec...
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Springer Netherlands
2017
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| LEADER | 09999caa a22008537a 4500 | ||
|---|---|---|---|
| 001 | PAPER-15110 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230518204546.0 | ||
| 008 | 190410s2017 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-85001574894 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Geuna, S. | |
| 245 | 1 | 0 | |a Magnetic susceptibility mapping of the Cambrian El Hongo pluton, Eastern Sierras Pampeanas, Argentina |
| 260 | |b Springer Netherlands |c 2017 | ||
| 270 | 1 | 0 | |m Geuna, S.; Departamento de Ciencias Geológicas, Universidad de Buenos Aires, IGEBA, UBA-CONICET, FCEyN, Ciudad Universitaria Pab. 2, Argentina; email: geuna@gl.fcen.uba.ar |
| 506 | |2 openaire |e Política editorial | ||
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| 504 | |a D’Eramo, F.J., (2003) Petrology and Emplacement of the El Hongo and Calmayo Plutons, and Their Relationship with the Geological Evolution of Sierra Chica de Córdoba | ||
| 504 | |a D’Eramo, F., Pinotti, L., Tubía, J.M., Vegas, N., Aranguren, A., Tejero, R., Gómez, D., Coalescence of lateral spreading magma ascending through dykes: a mechanism to form a granite canopy (El Hongo pluton, Sierras Pampeanas, Argentina) (2006) J. Geol. Soc. London, 163, pp. 1-12 | ||
| 504 | |a D’Eramo, F., Tubía, J.M., Pinotti, L., Vegas, N., Coniglio, J., Demartis, M., Aranguren, A., Basei, M., Granite emplacement by crustal boudinage: example of the Calmayo and El Hongo plutons (Córdoba, Argentina) (2013) Terra Nova, 25, pp. 423-430 | ||
| 504 | |a Dalla Salda, L.H., Dalziel, I.W.D., Cingolani, C.A., Varela, R., Did the Taconic Appalachians continue into South America (1992) Geology, 20, pp. 1059-1062 | ||
| 504 | |a de Wall, H., Karl, A., Nano, L., Schmitt, T., Rieger, M., Magnetic susceptibility measurements for the petrographic characterization of Granitoids: Comparison of field and laboratory measurements in the Saghro region of the anti-Atlas of Morocco (2000) Z. Angew. Geol., 46, pp. 223-230 | ||
| 504 | |a de Wall, H., Dietl, C., Streit, V., Rückert, D., Rohrmüller, J., Field mapping of magnetic susceptibility as tool for petrographic characterization of granitoids - a key study in the Hauzenberg pluton, Bavarian Forest, Germany (2008) Neues. Jahrb. Geol. Palaontol.-Abh., 248, pp. 129-137 | ||
| 504 | |a Frost, B.R., Magnetic petrology: factors that control the occurrence of magnetite in crustal rocks (1991) Oxide Minerals: Petrologic and Magnetic Significance. Reviews in Mineralogy, 25, pp. 489-509 | ||
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| 504 | |a Geuna, S., Escosteguy, L., Díaz Appella, B., D’Eramo, F., Pinotti, L., Magnetic properties of xenoliths in the El Hongo trondhjemite (Cambrian), Córdoba province, Argentina (2016) LATINMAG Lett., 500, pp. 1-7 | ||
| 504 | |a Gleizes, G., Nédélec, A., Bouchez, J.-L., Autran, A., Rochette, P., Magnetic susceptibility of the Mont-Louis Andorra ilmenite-type granite (Pyrenees): A new tool for the petrographic characterization and regional mapping of zoned granite plutons (1993) J. Geophys. Res., 98, pp. 4317-4331 | ||
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| 504 | |a Ishihara, S., Robb, L., Anhaeusser, C., Imai, A., Granitoid series in terms of magnetic susceptibility: a case study from the Barberton Region, South Africa (2002) Gondwana Res., 5, pp. 581-589 | ||
| 504 | |a Jordanova, D., Veneva, L., Hoffmann, V., Magnetic susceptibility screening of anthropogenic impact on the Danube river sediments in northwestern Bulgaria - preliminary results (2003) Stud. Geophys. Geod., 47, pp. 403-418 | ||
| 504 | |a Kontny, A., Dietl, C., Relationships between contact metamorphism and magnetite formation and destruction in a pluton’s aureole, White-Inyo Range, eastern California (2002) Geol. Soc. Am. Bull., 114, pp. 1438-1451 | ||
| 504 | |a Latham, A.G., Harding, K.L., Lapointe, P., Morris, W.A., Balch, S.J., On the lognormal distribution of oxides in igneous rocks, using magnetic susceptibility as a proxy for oxide mineral concentration (1989) Geophys. J., 96, pp. 179-184 | ||
| 504 | |a O’Reilly, W., (1984) Rock and Mineral Magnetism. | ||
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| 504 | |a Pinotti, L., D’Eramo, F., Vegas, N., Tubía, J.M., Coniglio, J., Magnetic mineralogy of granitoids of the Sierras de Córdoba (2004) Advances in Mineralogy, Metalogeny and Petrology 2004, , Brodtkorb M.K., Koukharsky M., Quenardelle S., Montenegro T., (eds) | ||
| 504 | |a Rapela, C.W., Pankhurst, R.J., Casquet, C., Baldo, E., Saavedra, J., Galindo, C., The Pampean Orogeny of the southern Proto-Andes: Cambrian continental collision in the Sierras de Córdoba (1998) Proto-Andean margin of Gondwana. Geological Soc. London Spec. Publ., 142, pp. 181-217 | ||
| 504 | |a Rochette, P., Magnetic susceptibility of the rock matrix related to magnetic fabric studies (1987) J. Struct. Geol., 9, pp. 1015-1020 | ||
| 504 | |a Shaw, D.M., Element distribution laws in geochemistry (1961) Geochim. Cosmochim. Acta, 23, pp. 116-134 | ||
| 520 | 3 | |a A map of bulk magnetic susceptibility was obtained on El Hongo trondhjemite, a small Cambrian pluton intruding the metamorphic basement in Eastern Sierras Pampeanas, Argentina, based on systematic magnetic susceptibility measurement at 450 sites using a SM30 susceptibility meter. Samples were collected on 58 sites and their bulk magnetic susceptibility was measured in laboratory with a Bartington MS2 system. Point-to-point comparison showed differences, that were attributed to the effect of roughness of the surveyed surfaces, and to the development of a weathered cap. However, the difference was systematic and in accordance with expected values predicted by manufacturer tables, whereby, once corrected with the appropriate factor, the obtained values with SM30 susceptibility meter were regarded as representative of fresh rocks. The resulting map was interpreted in terms of variation in abundance of magnetite, which is present in the rocks as a magmatic mineral, altered to hematite (martitized) in varying degrees. The map revealed that El Hongo trondhjemite is a weakly magnetic pluton, with a typical bulk susceptibility of about 500 × 10−6 SI, which would correspond to an abundance of magnetite below 0.2 vol%, but with conspicuous variations. Lows in the outer sector and in the vicinity of metamorphic xenoliths were interpreted as due to destruction of magnetic minerals linked to reactions between magma and host rock. A distinct concentric pattern in the western area could indicate the presence of a separate intrusion. Finally, alternate highs and lows in susceptibility follow the undulations in regional schistosity, which in turn would have controlled the emplacement of the pluton. Thus we provide a good example of the utility of magnetic susceptibility mapping in granitoid terrains, as an expeditious way for preliminary mapping that could guide further and more detailed research. © 2017, Institute of Geophysics of the ASCR, v.v.i. |l eng | |
| 593 | |a Departamento de Ciencias Geológicas, Universidad de Buenos Aires, IGEBA, UBA-CONICET, FCEyN, Ciudad Universitaria Pab. 2, CABA, 1874, Argentina | ||
| 593 | |a Instituto de Geología y Recursos Minerales (IGRM), Servicio Geológico Minero Argentino, Colectora Av. Gral. Paz 5445, edificio 25, 1603 Villa Martelli, Buenos Aires, Argentina | ||
| 593 | |a Departamento de Geología, Universidad Nacional de Río Cuarto, CONICET, Río Cuarto, 5800, Argentina | ||
| 690 | 1 | 0 | |a HANDHELD SUSCEPTIBILITY METER |
| 690 | 1 | 0 | |a ILMENOHEMATITE |
| 690 | 1 | 0 | |a MAGNETIC SUSCEPTIBILITY |
| 690 | 1 | 0 | |a MAGNETITE |
| 690 | 1 | 0 | |a MARTITIZATION |
| 690 | 1 | 0 | |a CAMBRIAN |
| 690 | 1 | 0 | |a EMPLACEMENT |
| 690 | 1 | 0 | |a MAGNETIC SUSCEPTIBILITY |
| 690 | 1 | 0 | |a MAGNETITE |
| 690 | 1 | 0 | |a MAPPING |
| 690 | 1 | 0 | |a TRONDHJEMITE |
| 690 | 1 | 0 | |a XENOLITH |
| 690 | 1 | 0 | |a SIERRAS PAMPEANAS |
| 650 | 1 | 7 | |2 spines |a PLUTON |
| 651 | 4 | |a ARGENTINA | |
| 700 | 1 | |a Escosteguy, L. | |
| 700 | 1 | |a Díaz Appella, B. | |
| 700 | 1 | |a D’Eramo, F. | |
| 700 | 1 | |a Pinotti, L. | |
| 773 | 0 | |d Springer Netherlands, 2017 |g v. 61 |h pp. 219-232 |k n. 2 |p Stud. Geophys. Geod. |x 00393169 |w (AR-BaUEN)CENRE-6930 |t Studia Geophysica et Geodaetica | |
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