Title
Epigenetic tourmaline in sedimentary red-beds: an example from the Silurian Rose Hill Formation, Virginia
Document Type
Article
Publication Date
1-1-1994
Abstract
Acicular epigenetic tourmaline is developed hemimorphically on the c pole of detrital tourmaline in a Silurian red-bed sandstone of the Rose Hill Formation from western Virginia. Compositional signatures of the detrital tourmaline suggest a provenance from a highly oxidized granitic rock or a quartz-tourmaline vein. Relative to the detrital substrates, the composition of the epigenetic overgrowths is distinctly different, consisting of Al-rich schorl-dravite with a Fe/(Mg+Fe) value of 0.66 and a significant X-site vacancy. Epigenetic tourmaline is a sensitive recorder of the chemical environment during early stages of metamorphism of the red-bed sequence. -from Authors
Publication Source (Journal or Book title)
Canadian Mineralogist
First Page
599
Last Page
605
Recommended Citation
Henry, D., Gang Lu., & McCabe, C. (1994). Epigenetic tourmaline in sedimentary red-beds: an example from the Silurian Rose Hill Formation, Virginia. Canadian Mineralogist, 32 (3), 599-605. Retrieved from https://repository.lsu.edu/geo_pubs/924