Craters in the Telsen area, Chubut Province, Argentina: Satellite imagery digital processing techniques applied to surficial geology mapping
Subcircular features, with crater morphology, developed in a volcano-sedimentary context, with diameters no greater than 2 km, were recognized in the vicinity of the Telsen locality, northeastern Chubut Province, Argentina. These structures are surrounded by tabular volcanic rocks of the Quiñelaf Fo...
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Instituto Superior de Correlacion Geologica
2017
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| LEADER | 08126caa a22006017a 4500 | ||
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| 001 | PAPER-17811 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230607131909.0 | ||
| 008 | 190410s2017 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-85034969438 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Navarro, E. | |
| 245 | 1 | 0 | |a Craters in the Telsen area, Chubut Province, Argentina: Satellite imagery digital processing techniques applied to surficial geology mapping |
| 260 | |b Instituto Superior de Correlacion Geologica |c 2017 | ||
| 506 | |2 openaire |e Política editorial | ||
| 504 | |a Acevedo, R., Ponce, J., Rocca, M., Rabassa, J., Corbella, H., Bajada del diablo impact crater-strewn field: The largest crater field in the southern hemisphere (2009) Geomorphology, 110, pp. 58-67 | ||
| 504 | |a (1960) Manual of Photographic Interpretation, 868p. , (1st ed.), Washington D. C | ||
| 504 | |a Ardolino, A.L., Franchi, M., (1996) Hoja Geológica 4366-I. Telsen, 215, 110p. , Provincia de Chubut. Subsecretaría de Minería de la Nación, Boletín, Buenos Aires | ||
| 504 | |a Chuvieco, E., (2010) Teledetección Ambiental: La Observación de la Tierra Desde el Espacio, 586p. , Ariel Ciencia (Ed.), Barcelona | ||
| 504 | |a Guler, M.V., Borel, C.M., Brinkhuis, H., Navarro, E., Astini, R., Brackish to freshwater dinoflagellate cyst assemblages from the la colonia formation (Paleocene), northeastern patagonia, Argentina (2014) Ameghiniana, 51, pp. 141-153 | ||
| 504 | |a Jollife, I.T., (2002) Principal Component Analysis, 478p. , (2o ed.), Springer series in statistics, Springer, New York | ||
| 504 | |a Malumián, N., (1999) La Sedimentación en la Patagonia Extraandina, 29, pp. 557-612. , Geología Argentina, R. Caminos (Ed.), Instituto de Geología y Recursos Minerales (Buenos Aires), Anales | ||
| 504 | |a Nañez, C., Malumián, N., Paleobiogeografía y paleogeografía del Maastrichtiense marino de la Patagonia, Tierra del Fuego y la Plataforma Continental Argentina, según sus foraminíferos bentónicos (2008) Revista Española de Paleontología, 23, pp. 273-300 | ||
| 504 | |a Navarro, E., Astini, R., Un ejemplo excepcional de brechamiento (sismita) en el Grupo Chubut, Patagonia (2010) Revista de la Asociación Geológica Argentina, 67 (2), pp. 193-204 | ||
| 504 | |a Navarro, E., (2012) Análisis Estratigráfico del Área de Telsen, Provincia de Chubut, , Tesis doctoral. Dto. de Geología, Universidad Nacional del Sur, 287 pp. Bahía Blanca. Inédito | ||
| 504 | |a Navarro, E., Astini, R., Uso de Sistema de Información Geográfica (SIG) y tratamiento digital de imágenes en el mapeo geológico del área Telsen, noreste de la provincia Chubut, Patagonia (2014) 19° Congreso Geológico Argentino, S3-S11, pp. 1-2. , Estratigrafía y Sedimentología | ||
| 504 | |a Navarro, E., Astini, R., Belousova, E., Guler, M., Gehrels, G., Detrital zircon geochronology and provenance of the chubut group in the northeast of patagonia, Argentina (2015) Journal of South American Earth Sciences, 63, pp. 149-161 | ||
| 504 | |a Pla, L., (1986) Análisis Multivariado: Método de Componentes Principales, p. 89. , (1ra ed.), Instituto Interamericano de Estadística, Secretaría General de la OEA, Washington D.C | ||
| 504 | |a Richards, J., (1995) Remote Sensing Digital Analysis. An Introduction, p. 335. , (2o revised and enlarged edition), Springer-Verlag, Berlin | ||
| 504 | |a Yllañez, E., Lema, H., Estructuras anulares y geología del Noreste de Telsen (prov. Del Chubut) (1979) 7° Congreso Geológico Argentino, 1, pp. 445-454 | ||
| 520 | 3 | |a Subcircular features, with crater morphology, developed in a volcano-sedimentary context, with diameters no greater than 2 km, were recognized in the vicinity of the Telsen locality, northeastern Chubut Province, Argentina. These structures are surrounded by tabular volcanic rocks of the Quiñelaf Formation with low radial-centrifugal dip, exhibit an external ring with dark visual levels enclosing topographic highs with mostly light visual levels. Surficial geological aspects of one of the larger structures in the area (S 42° 22′ 55″, W 66° 49′ 15″) were mapped from raster data at a scale of 1:3.000, following the stages of the photographic interpretation. Panchromatic and multispectral Spot images, and Google Earth image with 0.5 m. spatial resolution were used. Idrisi, Global Mapper, StitchMaps and Corel Draw software were used in the digital processing. The geological references of the area were obtained from the Telsen Geological map, herein georeferenced with Global Mapper. The frequency distribution histograms of the image windows of the different mapped sectors, allowed the generation of different contrast enhancements. Directional filters of the menu texture analysis of Idrisi permitted the identification of the oriented features. The images obtained herein, allowed the recognition of homogeneous units in terms of interpretation keys linked to the photo-analysis phase. Subsequent field observations contributed to the adjustment and to the final assignment of categories to each homogeneous unit (photo-interpretation last stage). The final map was compiled with the software Corel Draw, it was based on the synthesis image from the digital processing and referenced using Global Mapper. Deposits and fragments of basalt that constitutes the external ring of the crater along with different volcanic rocks, breccia and Chubut Group rocks fragments enclosed within the crater are mainly showed in this map. Also, deposits and dipping strata of the Chubut Group following the strike of the ring and outcrops of volcanic rocks in the central - south part of the mapped area were recognized. Detailed geophysical surveys detected magnetic anomalies in the SE part of the mapped crater. Several mechanisms such as magmatism, phreatomagmatism and/or bolide impacts constitute hypotheses related to the probable origin of these landforms. |l eng | |
| 536 | |a Detalles de la financiación: Agencia Nacional de Promoción Científica y Tecnológica, PICT 1950-2013 | ||
| 536 | |a Detalles de la financiación: The authors thank Mr Ruben Muchico for his support during the field work. We gratefully acknowledge the suggestions of the anonymous reviewers, which significantly improved the final version of this manuscript. This work was partially funded by the Grant 24/ZH26 de SCyT UNS and the ANPCyT project PICT 1950-2013. | ||
| 593 | |a Departamento de Geología, CGAMA, Comisión Investigaciones Científicas, Universidad Nacional del Sur - Bahía Blanca, San Juan 670, Bahía Blanca, 8000, Argentina | ||
| 593 | |a IGeBA, FCEyN Univ. de Bs. As.- CONICET, Intendente Güiraldes 2160, Pabellón II, Piso 1, Ciudad Universitaria, Ciudad Autónoma de Buenos Aires, CP 1428, Argentina | ||
| 593 | |a Departamento de Geología, CONICET, Universidad Nacional del Sur - Bahía Blanca, San Juan 670, Bahía Blanca, 8000, Argentina | ||
| 593 | |a Centro de Investigaciones en Ciencias de la Tierra (CONICET), Universidad Nacional de Córdoba, Laboratorio de Análisis de Cuencas, Av. Vélez Sarsfield 1611, Argentina | ||
| 651 | 4 | |a ARGENTINA | |
| 690 | 1 | 0 | |a CRATERS |
| 690 | 1 | 0 | |a GEOLOGIC MAP |
| 690 | 1 | 0 | |a IMAGE PROCESSING |
| 690 | 1 | 0 | |a TELSEN |
| 700 | 1 | |a Prezzi, C. | |
| 700 | 1 | |a Orgeira, M.J. | |
| 700 | 1 | |a Cano, M. | |
| 700 | 1 | |a Astini, R. | |
| 773 | 0 | |d Instituto Superior de Correlacion Geologica, 2017 |g v. 33 |h pp. 41-48 |k n. 1-2 |p Ser. Correl. Geol. |x 15144186 |w (AR-BaUEN)CENRE-9542 |t Serie Correlacion Geologica | |
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| 856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_15144186_v33_n1-2_p41_Navarro |y Handle |
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