Resumo

RIOS R., Carlos Alberto; CASTELLANOS A., Oscar Mauricio  e  CHACON AVILA, Carlos Alberto. Ti-clinohumite in the Ciénaga skarn-type mineralogy, Sierra Nevada de Santa Marta Massif (Colombia): Occurrence and petrologic significance. Earth Sci. Res. J. [online]. 2015, vol.19, n.1, pp.15-30. ISSN 1794-6190.  https://doi.org/10.15446/esrj.v19n1.42020.

This study reports the occurrence and petrologic significance of Ti-clinohumite for the first time in the Ciénaga skarn, Sierra Nevada de Santa Marta Massif. Ti-Clinohumite occurs as thin bands hosted in the Ciénaga Marbles of lower Cretaceous age, which consist of quartz-wollastonite-diopside-garnet-clinohumite marbles. We focus the attention on the occurrence of Ti-clinohumite-bearing domains, highlighting some interesting textures as well as the mineralogy and chemistry of the Ti-clinohumite. On the basis of its geologic situation, petrography, mineral composition and metamorphic history, we discuss the origin of Ti-clinohumite.

Palavras-chave : Ti-clinohumite; marbles; Ciénaga skarn; mineralogy; Sierra Nevada de Santa Marta Massif.

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