Welch, "The effect of pressure upon hydrogen bonding in chlorite: a raman spectroscopic study of clinochlore
to 26.5 GPa," American Mineralogist, vol.
Castellanos and co-workers (personal communication) described in detail the characteristic mineral assemblages from reaction zones recognized in marbles, which include calcite + graphite [+ or -] quartz; calcite + diopside [+ or -] tremolite [+ or -] epidote-group minerals [+ or -] muscovite; calcite + wollastonite + quartz + garnet + diopside; calcite + dolomite + Ti-clinohumite + diopside + forsterite + clinochlore
[+ or -] graphite; calcite + forsterite + tremolite; dolomite + calcite + clinochlore
The allochthonous minerals (chamosite, glauconite, chlorite and nacrite / clinochlore
) could be due to the influx of shallow marine water into the passive continental depositional basin.
Muestras SI53M2B SI53M2A Fases Montmorillonite [13-135] [13-135] Clinochlore
[29-701] [29-701] Muscovite [7-42] [7-42] Amphibole [73-1135] Quartz [[86-1628] [86-1628] Albite [78-1995] [78-1995] Tabla 2: Parametros hiperfinos de los minerales identificados en la parte bruta y en la fraccion arcillosa.
* Q *, G * G **, KNA ** Cernuc Q *, Mi * Q *, F-Mi **, K **, Mi **, (central Bohemia, clinochlore
in the rusty Velvary area) layer ** Py *** Table 2 A summary of results from mercury intrusion porosimetry.
amethysts from the Painter Farm, microclines from the Poorhouse quarry, clinochlore
variety kammererite from the Scott mine, and others.
Thus, various equilibria (e.g., E1 and E2 given in Table 2) could be calculated for T values between 250[degrees]C and 400[degrees]C considering the above components, the clinochlore
(= [Mg.sub.5]Al[Al[Si.sub.3[[O.sub.10]][(OH).sub.8]) component in chlorite, the muscovite (KAl2[AlSi3O10](OH)2) component in potassic white mica as well as K-feldspar, quartz and [H.sub.2]O.
Chrysotile (i.e., fibrous asbestos) is the most common mineral phase found in veins and shear zones crosscutting the serpentinite rocks (Figure 5), along with dolomite and trace amounts of clinochlore
(i.e., sample R10).
The intensity curves and stick pattern for all the three major minerals, Quartz, Muscovite and Clinochlore
is given in Figure 2 and 3 respectively.
Chlorite compositions are close to the ideal clinochlore
composition ([Mg.sub.5][Al.sub.2][Si.sub.3][O.sub.10][(OH).sub.8]), with 3 ([+ or -] 0.1) Si, 2 (+ or -] 0.1) Al, and 5 ([+ or -]0.2) divalent ([R.sup.2+]) ions per unit formula (Appendix Table A3).
The commonest species in sediments are the Mg- and [Fe.sup.2+] -rich trioctahedral chlorites, namely clinochlore
and chamosite, and the Al-rich dioctahedral species, donbassite.
Lawrence County, New York and clinochlore
from West-townr Chester County, Pennsylvania.