Francois, et al.
We also report (briefly) on F-rich Ca garnets, that occur in a
limestone host rock, metasomatized by heat and fluids
from an alkalic igneous intrusion.
The garnets are very small, about 100 microns, anisotropic and
occur with fluor-apophyllite, pectolite, and pyrrhotite. Fluorite
occurs in veins. Gar rims are enriched in F, up to 1.1 wt %.
reference is:
Dutrow et al., 2001. Geoch.& Cosm. Acta, v.65, No.21,3749-3767
"Coupled heat and silica transport associated with dike intrusion into
sedimentary rock:effects on isotherm location and permeability
evolution"
Cheers,
Barb
> Would anybody know reference of works about F-rich garnets [in my case,
up to 20-weight% of (F,OH), in equilibrium with CaF2, phg (Si<3,5),
Ab,Kflsp,biot] ?
> Thanking you in advance for any help.
>--
> ---François GUILLOT---
>
>
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Dr. Barb Dutrow e-mail: [log in to unmask]
Professor voice: 225-578-2525
Dept. Geology & Geophysics fax: 225-578-2302
Louisiana State University www.geol.lsu.edu/dutrow
Baton Rouge, LA 70803-4101
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