In a series of metasomatized limestones from subsurface Louisiana, USA,
that surround an alkalic intrusion, pectolite occurs together with apophyllite,
calcite, plag, fluorite, etc. Near the intrusion pectolite occurs with
Ca-rich garnet. We suggest reactions based on infiltration of fluids
from the intrusion.
Dutrow, Travis, Gable, Henry, 2001. Coupled heat and silica transport
associated with dike intrusion into sedimentary rock: effects on
isotherm location and permeability evolution. Geochimica et Cosmochim.
Acta, 65:3749-3767.
For an additional, not so apparent reference on pectolite-forming reactions!
Cheers
Barb
> The calc-silicate rocks from the Hercynian chain of Sardinia (Italy)
> consist of
> wollastonite, calcite, diopside, grossular (quartz , plagioclase) and
> pectolite.
> Can anyone suggest me the pectolite forming reaction and the P-T stability
> conditions?
>
**************************************************************************
Dr. Barb Dutrow, Prof. e-mail: [log in to unmask]
Dept. of Geology & Geophysics ph: (225) 578-2525
Louisiana State University fax: (225) 578-2302
Baton Rouge, LA 70803-4101
currently at:
Institute of Geophysics & Planet. Physics ph: (505)-667-9190
Mail Stop MS C-305 fax: (505) 665-3107
Los Alamos National Lab e-mail: [log in to unmask]
Los Alamos, NM 87545
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