lithogeochemistry characterization and correlation analysis of superunits intrusive Yarabamba and Challaviento in southern Peru

Authors

  • Hugo Rivera Educational of the Academic Professional School of Geological Engineering of the National University of San Marcos.
  • Jorge Chira Educational of the Academic Professional School of Geological Engineering of the National University of San Marcos.
  • Néstor Chacón Educational of the Academic Professional School of Geological Engineering of the National University of San Marcos.
  • Giovanni Pedemonte Student of the Professional Academic School of Geological Engineering of the National University of San Marcos.
  • Rosella Mendoza Student of the Professional Academic School of Geological Engineering of the National University of San Marcos.

DOI:

https://doi.org/10.15381/iigeo.v16i31.11274

Keywords:

Geochemical diagrams, major elements, traces, rare earths, tectonic environment

Abstract

The constituents of superunits Yarabamba and Challaviento in southern Peru, according to its composition of major elements, minor and trace and graphing various intrusive rocks geochemical diagrams show that both superunits have a degree of evolution by fractional crystallization They are sub-alkaline nature and high K calc-alkaline series

The rocks are both superunits metaluminous nature. The contents of Sr and Rb indicate a strong assimilation and differentiation of magmas. The enrichment of LILE (<100) elements and an impoverishment of less HFSE elements 10, negative anomalies of Nb and positive anomalies of Th, Ce, indicate that both groups are related to intrusive tectonic plate subduction context. The chemical content of the SuperDrive Yarabamba and Challaviento Ce / and Ga / Al and Y, Y + Nb and Rb and Nb are due to contamination during crustal thickening during the Cretaceous-Neogene tectonic setting and is the Volcanic Arc granitoids (GAV).

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Published

2013-07-15

Issue

Vol. 16 No. 31 (2013)

Section

Artículos científicos

License

Copyright (c) 2013 Hugo Rivera, Jorge Chira, Néstor Chacón, Giovanni Pedemonte, Rosella Mendoza

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b. Authors retain their right to share, copy, distribute, perform and publicly communicate their article (eg, to place their article in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Rev. Inst. investig. Fac. minas metal cienc. geogr.

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How to Cite

Rivera, H., Chira, J., Chacón, N., Pedemonte, G., & Mendoza, R. (2013). lithogeochemistry characterization and correlation analysis of superunits intrusive Yarabamba and Challaviento in southern Peru. Revista Del Instituto De investigación De La Facultad De Minas, Metalurgia Y Ciencias geográficas, 16(31). https://doi.org/10.15381/iigeo.v16i31.11274