Table 1. Representative mineral analyses and formulae.
Mineral:
Clinopyroxene
Garnet
Garnet
Plagioclase
Amphibole
Scapolite
Clinozoisite
Titanite
Sample:
161-976B-76R-1, 72-75 cm
976B-76R-1,
72-75 cm
976B-104R-1,
9-62 cm
976B-76R-2,
116-119 cm
976B-76R-1,
72-75 cm
976E-15R-1, 126-128 cm
976E-21R-3,
27-31 cm
976B-76R-2,
116-119 cm
1:
Cpx6-5
Grt3-2
Grt4-1
Pl1-4
Amph2-6
Scp1-5
Czo3-5
Ttn2-3
SiO2 50.21 38.74 38.42 43.43 46.35 45.51 38.65 30.25
TiO2 0.08 0.14 0.33 0.00 0.27 0.01 0.14 36.84
Cr2O3 0.03 0.02 0.06 0.01 0.05 0.00 0.00 0.01
Al2O3 0.74 19.81 16.03 36.04 6.54 27.56 26.56 2.58
FeO 20.31 13.55 8.18 0.22 26.69 0.20 9.10† 0.56†
MnO 0.77 2.96 0.98 0.03 0.74 0.01 0.13 0.02
MgO 5.12 0.23 0.08 0.00 4.92 0.00 0.02 0.01
CaO 22.82 24.58 35.58 20.22 11.06 19.05 23.97 29.22
Na2O 0.06 0.00 0.00 0.12 0.35 2.66 0.00 0.00
K2O 0.00 0.00 0.01 0.01 0.23 0.18 0.00 0.00
Cl
n.a.
n.a.
n.a.
n.a.
n.a.
 0.10
n.a.
n.a.
Total 100.15 100.26 100.58 100.09 97.34 95.28 98.55 99.49
O = Cl 0.00 0.00 0.00 0.00 0.00 0.02 0.00 0.00
Total 100.15 100.26 100.58 100.09 97.34 95.26 98.55 99.49

Wood and Banno (1973) 8 cat - 12 O
5 cat - 8 O cat - Na - K = 15 Si + Al = 12 12 cat + OH 3 cat - 5 O
Si 1.988 3.017 2.969 2.010 7.210 7.001 3.008 0.978
Ti 0.002 0.009 0.019 0.000 0.032 0.001 0.008 0.896
Aliv 0.012 0.000 0.031 0.000 0.790 0.000 0.000 0.000
Alvi 0.023 1.818 1.429 1.966 0.409 4.999 2.437 0.098
Cr 0.001 0.001 0.004 0.000 0.006 0.000 0.000 0.000
Fe3+ 0.000 0.131 0.528 0.008 0.159 0.000 0.533 0.014
Fe2+ 0.673 0.752 0.000 0.000 3.313 0.026 0.000 0.000
Mn 0.026 0.195 0.064 0.001 0.097 0.001 0.008 0.001
Mg 0.302 0.027 0.009 0.000 1.141 0.001 0.002 0.001
Ca 0.968 2.051 2.945 1.003 1.843 3.141 1.999 1.013
Na 0.005 0.000 0.000 0.011 0.105†† 0.793 0.000 0.000
K 0.000 0.000 0.001 0.000 0.046 0.036 0.000 0.000
Cl
n.a.
n.a.
n.a.
n.a.
n.a.
 0.027
n.a.
n.a.
Compositional parameters and end members

Wo = 0.479 Grs = 0.61 Grs = 0.70 An = 0.99 Tsch = 0.64 EqAn = 66.62 Czo = 0.45 CaTiSiO5 = 0.91

En = 0.151 Alm = 0.25 Alm = 0.00
Fe3+- Alvi = 0.249



Fs = 0.336 Prp = 0.01 Prp = 0.00
Ed = 0.15




Sps = 0.07 Sps = 0.02
K - Na(A) = 0.30




Adr = 0.07 Adr = 0.26
Fe2+ - Mg = 0.73


Note: n.a. = not analyzed, † = iron as Fe2O3, †† = all Na in site A, cat = cation. Mineral abbreviations are after Kretz (1983).