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DYNA
Print version ISSN 0012-7353On-line version ISSN 2346-2183
Abstract
HERRERA, PABLO MEJÍA; ESCOBAR, MONICA SANTA; ORDONEZ CARMONA, OSWALDO and PIMENTEL, MARCIO. PETROGRAPHIC, GEOCHEMICAL AND GEOCHRONOLOGICAL CONSIDERATIONS OF THE WESTERN PORTION OF SANTA MARTA BATHOLITH. Dyna rev.fac.nac.minas [online]. 2008, vol.75, n.155, pp.223-236. ISSN 0012-7353.
In this paper are show results of major and trace elements chemical analysis for samples taken over western border of Santa Marta Batholith. Further petrographics observations for the batolith that include their felsic and mafic facies and pegmatitics dykes. With the results of these chemical analyses, carried to spider and tectonomagmatic settings diagrams proposed by Pearce et al., (1984) and Pearce (1996), added field relations founds, it suggest a Magmatic Arc for the batholith setting formation. U-Pb convencional age of 51.57 ± 1.3 Ma confirm the presence of the Paleogene magmatism in this area.
Keywords : Sierra Nevada de Santa Marta; Santa Marta Batholith; U-Pb; major elements; trace elements.