Separation of the Guajira-Bonaire pair: 65-50Ma exhumation followed by 300 km right-lateral transtensional deformation

S Zapata; Cardona A; Camilo Montes; Valencia V.; V. Vervoort, J.; Reiners P.

Publicado

2012-08-01

Separation of the Guajira-Bonaire pair: 65-50Ma exhumation followed by 300 km right-lateral transtensional deformation

Palabras clave:

Provenance, Caribbean, conglomerates, U Pb LA ICPMS, Eocene. (es)

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Autores/as

S Zapata Corporación Geológica ARES
Cardona A Universidad Nacional de Colombia, Sede Medellín
Camilo Montes Universidad de Los Andes
Valencia V. Washington State University
V. Vervoort, J. Washington State University
Reiners P. Department of Geosciences, University of Arizona, Tucson, USA

Resumen (es)

Zapata, S.1, Cardona, A.2, Montes, C3, Valencia, V.4, Vervoort, J.4 & Reiners, P.5
1 Corporación Geológica Ares, Calle 57 No. 23-09 of 202, Bogotá, Colombia.
szapatah@gmail.com
2 Departamento de Procesos y Energía, Universidad Nacional de Colombia Sede Medellín,
Medellín, Colombia
agustincardonam@gmail.com
3 Geociencias, Universidad de Los Andes, Departamento de Geología, Bogotá, Colombia.
4 School of Earth and Environmental Sciences, Washington State University, Pullman, USA
5Department of Geosciences, University of Arizona, Tucson, USA

Upper Eocene fluvial strata in the Island of Bonaire contain detrital components that were tracked to the basement massifs of the Guajira Peninsula in northern of Colombia. These components confirm previous hypothesis that the Guajira-Bonaire pair constitute a tectonic piercing point along the southern Caribbean Plate margin that was right-laterally displaced approximately 300km after middle Eocene times. Other possible sources, the nearby Curaҫao and the far away Santa Marta Massif, did not pass statistical similarity and overlap tests. U-Pb LA-ICP-MS from the metamorphic boulders of the Soebi Blanco Formation in Bonaire yields Grenvillian ages (1084Ma, 1130Ma and 1184Ma), while the detrital zircons recovered from the sandy matrix of the conglomerates contain populations with peaks of 1000 - 1200Ma, 750 - 950Ma and 200 – 300 Ma. Overlap and similarity tests run between these populations and published data from Guajira yield values of 0.750 and 0.680, which are significantly higher than the same comparison against the Santa Marta Massif (0.637 and 0.522), and the Curaҫao Island (0.629 and 0.467). Thermogeochronological results from the metamorphic clasts yield Paleocene-middle Eocene ages (65 – 50Ma) that confirm not only a regional-scale cooling event in this time period, but also help constrain the maximum depositional age (50Ma) of the poorly dated Soebi Blanco Formation.

Cómo citar

APA

Zapata, S., A, C., Montes, C., V., V., J., V. V. y P., R. (2012). Separation of the Guajira-Bonaire pair: 65-50Ma exhumation followed by 300 km right-lateral transtensional deformation. Geología Colombiana, 37, 33–34. https://revistas.unal.edu.co/index.php/geocol/article/view/33956

ACM

[1]

Zapata, S., A, C., Montes, C., V., V., J., V.V. y P., R. 2012. Separation of the Guajira-Bonaire pair: 65-50Ma exhumation followed by 300 km right-lateral transtensional deformation. Geología Colombiana. 37, (ago. 2012), 33–34.

ACS

(1)

Zapata, S.; A, C.; Montes, C.; V., V.; J., V. V.; P., R. Separation of the Guajira-Bonaire pair: 65-50Ma exhumation followed by 300 km right-lateral transtensional deformation. Geología Colombiana 2012, 37, 33-34.

ABNT

ZAPATA, S.; A, C.; MONTES, C.; V., V.; J., V. V.; P., R. Separation of the Guajira-Bonaire pair: 65-50Ma exhumation followed by 300 km right-lateral transtensional deformation. Geología Colombiana, [S. l.], v. 37, p. 33–34, 2012. Disponível em: https://revistas.unal.edu.co/index.php/geocol/article/view/33956. Acesso em: 24 abr. 2024.

Chicago

Zapata, S, Cardona A, Camilo Montes, Valencia V., V. Vervoort, J., y Reiners P. 2012. «Separation of the Guajira-Bonaire pair: 65-50Ma exhumation followed by 300 km right-lateral transtensional deformation». Geología Colombiana 37 (agosto):33-34. https://revistas.unal.edu.co/index.php/geocol/article/view/33956.

Harvard

Zapata, S., A, C., Montes, C., V., V., J., V. V. y P., R. (2012) «Separation of the Guajira-Bonaire pair: 65-50Ma exhumation followed by 300 km right-lateral transtensional deformation», Geología Colombiana, 37, pp. 33–34. Disponible en: https://revistas.unal.edu.co/index.php/geocol/article/view/33956 (Accedido: 24 abril 2024).

IEEE

[1]

S. Zapata, C. A, C. Montes, V. V., V. V. J., y R. P., «Separation of the Guajira-Bonaire pair: 65-50Ma exhumation followed by 300 km right-lateral transtensional deformation», Geología Colombiana, vol. 37, pp. 33–34, ago. 2012.

MLA

Zapata, S., C. A, C. Montes, V. V., V. V. J., y R. P. «Separation of the Guajira-Bonaire pair: 65-50Ma exhumation followed by 300 km right-lateral transtensional deformation». Geología Colombiana, vol. 37, agosto de 2012, pp. 33-34, https://revistas.unal.edu.co/index.php/geocol/article/view/33956.

Turabian

Zapata, S, Cardona A, Camilo Montes, Valencia V., V. Vervoort, J., y Reiners P. «Separation of the Guajira-Bonaire pair: 65-50Ma exhumation followed by 300 km right-lateral transtensional deformation». Geología Colombiana 37 (agosto 1, 2012): 33–34. Accedido abril 24, 2024. https://revistas.unal.edu.co/index.php/geocol/article/view/33956.

Vancouver

1.

Zapata S, A C, Montes C, V. V, J. VV, P. R. Separation of the Guajira-Bonaire pair: 65-50Ma exhumation followed by 300 km right-lateral transtensional deformation. Geología Colombiana [Internet]. 1 de agosto de 2012 [citado 24 de abril de 2024];37:33-4. Disponible en: https://revistas.unal.edu.co/index.php/geocol/article/view/33956