Published

2010-07-01

X-ray color maps of the zoned garnets from Silgará Formation metamorphic rocks,SantanderMassif, Eastern Cordillera (Colombia)

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Authors

  • Carlos Alberto Ríos R Escuela deGeología, Universidad Industrial de Santander, Bucaramanga
  • Oscar Mauricio Castellanos A. Programa de Geología,Universidad de Pamplona
  • Akira Takasu Geoscience Department, Shimane University, Japan

The metamorphic rocks of the Lower Paleozoic Silgará Formation of the Santander Massif, Eastern Cordillera (Colombia), were affected by a Barrovian-type metamorphism under low to high temperature and medium pressure conditions. These rocks contain garnet porphyroblasts, which show several kinds of chemical zoning patterns. The garnet grains behave as closed systems with respect to the rock matrix. Most of the observed zoning patterns are due to gradual changes in physicochemical conditions during growth. However, some garnet grains show complex zoning patterns during multiple deformation and metamorphic events.

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How to Cite

Ríos R, C. A., Castellanos A., O. M., & Takasu, A. (2010). X-ray color maps of the zoned garnets from Silgará Formation metamorphic rocks,SantanderMassif, Eastern Cordillera (Colombia). Earth Sciences Research Journal, 14(2), 161-172. https://revistas.unal.edu.co/index.php/esrj/article/view/20993

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