Table 1
Representative analyses of constitutive minerals.
PYROXENE | ||||||||
---|---|---|---|---|---|---|---|---|
metagabbro | metagabbro | metagabbro | metagabbro | metagabbro | metagabbro | metagabbro | metagabbro | |
Sample | CO1305core | CO1305rim | CO1423 | CO1421 | CO1429 | CO1408 | CO1408 | CO1408 |
SiO2 | 52.79 | 52.31 | 51.11 | 52.31 | 52.12 | 56.77 | 55.35 | 55.03 |
Al2O3 | 3.02 | 3.06 | 3.28 | 3.11 | 4.15 | 1.61 | 7.86 | 7.64 |
TiO2 | 0.51 | 0.55 | 0.58 | 0.36 | 0.42 | 0.02 | 0.04 | 0.10 |
Cr2O3 | 0.21 | 0.15 | 0.47 | 0.50 | 0.26 | 0.02 | 0.00 | 0.00 |
NiO | 0.02 | 0.01 | 0.02 | 0.02 | 0.02 | 0.00 | 0.00 | 0.00 |
Fe2O3 | 0.26 | 0.00 | 3.24 | 1.70 | 4.60 | 0.00 | 7.96 | 10.02 |
FeO | 5.14 | 5.02 | 2.13 | 3.91 | 0.00 | 4.77 | 0.00 | 0.00 |
MgO | 16.29 | 15.87 | 15.93 | 17.01 | 15.41 | 21.44 | 9.47 | 8.26 |
MnO | 0.15 | 0.17 | 0.18 | 0.00 | 0.18 | 0.16 | 0.20 | 0.24 |
CaO | 21.30 | 21.70 | 22.79 | 21.08 | 22.05 | 12.66 | 14.00 | 12.41 |
Na2O | 0.42 | 0.37 | 0.36 | 0.35 | 1.47 | 0.74 | 6.84 | 7.78 |
K2O | 0.00 | 0.00 | 0.01 | 0.01 | 0.00 | 0.02 | 0.00 | 0.00 |
Total | 100.11 | 99.22 | 100.10 | 100.34 | 100.68 | 98.22 | 101.73 | 101.48 |
WB-cpx de pyroxene-norm (4 cations) | ||||||||
Si | 1.93 | 1.93 | 1.87 | 1.91 | 1.89 | 2.07 | 1.96 | 1.96 |
Al | 0.13 | 0.13 | 0.14 | 0.13 | 0.18 | 0.07 | 0.33 | 0.32 |
Ti | 0.01 | 0.02 | 0.02 | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 |
Cr | 0.01 | 0.00 | 0.01 | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 |
Ni | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Fe3+ | 0.01 | 0.00 | 0.09 | 0.05 | 0.12 | 0.00 | 0.21 | 0.27 |
Fe2+ | 0.16 | 0.16 | 0.07 | 0.12 | 0.00 | 0.15 | 0.00 | 0.00 |
Mg | 0.89 | 0.87 | 0.87 | 0.92 | 0.83 | 1.16 | 0.50 | 0.44 |
Mn | 0.00 | 0.01 | 0.01 | 0.00 | 0.00 | 0.01 | 0.01 | 0.01 |
Ca | 0.83 | 0.86 | 0.90 | 0.82 | 0.85 | 0.49 | 0.53 | 0.47 |
Na | 0.03 | 0.03 | 0.03 | 0.02 | 0.10 | 0.05 | 0.47 | 0.54 |
K | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
X Mg | 0.84 | 0.85 | 0.85 | 0.85 | 0.87 | 0.89 | 0.70 | 0.62 |
AMPHIBOLE | |||||||
---|---|---|---|---|---|---|---|
metagabbro | metagabbro | metagabbro | metagabbro | metagabbro | schist | schist | |
Sample | CO1305 | CO1423 | CO1421 | CO1418core | CO1418rim | CO1312 | CO1312 |
SiO2 | 56.52 | 57.09 | 56.56 | 56.81 | 56.97 | 58.13 | 58.19 |
Al2O3 | 1.59 | 1.72 | 1.26 | 0.81 | 0.23 | 0.02 | 0.02 |
TiO2 | 0.05 | 0.00 | 0.00 | 0.01 | 0.00 | 0.01 | 0.00 |
Cr2O3 | 0.18 | 0.00 | 0.01 | 0.16 | 0.08 | 0.00 | 0.00 |
NiO | 0.01 | 0.04 | 0.06 | 0.08 | 0.14 | 0.12 | 0.14 |
FeO | 5.29 | 4.96 | 5.28 | 5.50 | 4.77 | 2.80 | 2.68 |
MgO | 20.28 | 20.60 | 20.29 | 20.31 | 21.38 | 22.49 | 22.50 |
MnO | 0.09 | 0.18 | 0.18 | 0.14 | 0.13 | 0.09 | 0.11 |
CaO | 12.67 | 11.64 | 12.47 | 12.37 | 13.29 | 12.79 | 12.76 |
Na2O | 0.41 | 1.19 | 0.66 | 0.70 | 0.38 | 0.14 | 0.13 |
K2O | 0.04 | 0.06 | 0.04 | 0.04 | 0.02 | 0.01 | 0.01 |
Total | 97.11 | 97.47 | 96.82 | 96.93 | 97.39 | 96.62 | 96.53 |
CAMP NORM (stoichiometric, Sum(Cations) = 15+Na+K) | |||||||
Si | 7.93 | 8.03 | 7.98 | 8.02 | 7.94 | 8.08 | 8.09 |
Al | 0.26 | 0.28 | 0.21 | 0.13 | 0.04 | 0.00 | 0.00 |
Ti | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Cr | 0.02 | 0.00 | 0.00 | 0.02 | 0.01 | 0.00 | 0.00 |
Ni | 0.00 | 0.00 | 0.01 | 0.01 | 0.02 | 0.01 | 0.02 |
Fe2+ | 0.62 | 0.58 | 0.62 | 0.65 | 0.56 | 0.33 | 0.31 |
Mg | 4.24 | 4.32 | 4.27 | 4.27 | 4.44 | 4.66 | 4.66 |
Mn | 0.01 | 0.02 | 0.02 | 0.02 | 0.02 | 0.01 | 0.01 |
Ca | 1.91 | 1.75 | 1.89 | 1.87 | 1.98 | 1.90 | 1.90 |
Na | 0.11 | 0.32 | 0.18 | 0.19 | 0.10 | 0.04 | 0.03 |
K | 0.01 | 0.01 | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 |
X Mg | 0.87 | 0.88 | 0.87 | 0.87 | 0.89 | 0.93 | 0.94 |
Actinolite | Actinolite | Actinolite | Actinolite | Actinolite | Tremolite | Tremolite |
ALBITE | |||
---|---|---|---|
metagabbro | metagabbro | metagabbro | |
Sample | CO1305 | CO1423 | CO1421 |
SiO2 | 68.52 | 68.17 | 64.77 |
Al2O3 | 20.22 | 20.01 | 20.93 |
TiO2 | 0.00 | 0.00 | 0.01 |
FeO | 0.07 | 0.01 | 0.13 |
MgO | 0.03 | -0.01 | 0.26 |
MnO | 0.00 | 0.00 | 0.02 |
CaO | 0.16 | 0.23 | 3.22 |
Na2O | 11.74 | 11.06 | 10.99 |
K2O | 0.02 | 0.03 | 0.02 |
Total | 100.74 | 99.48 | 100.36 |
Cations (normalised to 8 oxygens) | |||
Si | 2.97 | 2.99 | 2.86 |
Al | 1.03 | 1.03 | 1.09 |
Ti | 0.00 | 0.00 | 0.00 |
Fe | 0.00 | 0.00 | 0.00 |
Mg | 0.00 | 0.00 | 0.02 |
Mn | 0.00 | 0.00 | 0.00 |
Ca | 0.01 | 0.01 | 0.15 |
Na | 0.99 | 0.94 | 0.94 |
K | 0.00 | 0.00 | 0.00 |
% Ab | 99.15 | 98.68 | 85.96 |
% An | 0.74 | 1.14 | 13.93 |
% Or | 0.11 | 0.18 | 0.11 |
EPIDOTE-CLINOZOISITE | ||||
---|---|---|---|---|
metagabbro | metagabbro | metagabbro | metagabbro | |
CO1305 | CO1305 | CO1423 | CO1421 | |
SiO2 | 39.03 | 39.32 | 37.95 | 37.60 |
Al2O3 | 30.82 | 29.50 | 28.60 | 26.87 |
TiO2 | 0.02 | 0.02 | 0.05 | 0.04 |
FeO | 4.74 | 6.16 | 7.43 | 9.34 |
MgO | 0.03 | 0.03 | 0.00 | 0.03 |
MnO | 0.05 | 0.05 | 0.06 | 0.06 |
CaO | 23.66 | 23.66 | 24.56 | 24.42 |
Na2O | 0.02 | 0.00 | 0.00 | 0.02 |
Total | 98.38 | 98.73 | 98.66 | 98.37 |
Normalized to 8 cations and 25 charges | ||||
Si | 2.99 | 3.02 | 2.93 | 2.93 |
Al | 2.78 | 2.67 | 2.60 | 2.47 |
Ti | 0.00 | 0.00 | 0.00 | 0.00 |
Fe2+ | 0.04 | 0.07 | 0.00 | 0.00 |
Fe3+ | 0.23 | 0.28 | 0.43 | 0.55 |
Mg | 0.00 | 0.00 | 0.00 | 0.00 |
Mn | 0.00 | 0.00 | 0.00 | 0.00 |
Ca | 1.94 | 1.95 | 2.03 | 2.04 |
Na | 0.01 | 0.01 | 0.00 | 0.02 |
XFe3+ | 0.08 | 0.10 | 0.14 | 0.18 |
CHLORITE | ||||||
---|---|---|---|---|---|---|
metagabbro | metagabbro | metagabbro | metagabbro | schist | schist | |
Sample | CO1305 | CO1423 | CO1421 | CO1418 | CO1312 | CO1312 |
SiO2 | 29.78 | 30.05 | 29.53 | 30.06 | 33.14 | 31.66 |
Al2O3 | 20.20 | 20.47 | 20.80 | 18.04 | 14.53 | 13.42 |
TiO2 | 0.02 | 0.01 | 0.01 | 0.00 | 0.01 | 0.02 |
Cr2O3 | 0.18 | 0.03 | 0.26 | 0.52 | 2.90 | 4.32 |
NiO | 0.10 | 0.17 | 0.09 | 0.38 | 0.34 | 0.38 |
FeO | 10.26 | 9.42 | 10.92 | 10.48 | 6.68 | 7.09 |
MgO | 26.21 | 27.88 | 26.17 | 26.82 | 30.89 | 30.06 |
MnO | 0.13 | 0.12 | 0.15 | 0.12 | 0.06 | 0.09 |
CaO | 0.10 | 0.05 | 0.08 | 0.03 | 0.01 | 0.01 |
Na2O | 0.00 | 0.01 | 0.01 | 0.01 | 0.02 | 0.01 |
K2O | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 |
Total | 86.99 | 88.21 | 88.00 | 86.46 | 88.58 | 87.04 |
Normalized to 28 oxygens | ||||||
Si | 5.81 | 5.76 | 5.72 | 5.93 | 6.30 | 6.19 |
Ti | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Cr | 0.03 | 0.00 | 0.04 | 0.08 | 0.44 | 0.67 |
Al | 4.65 | 4.62 | 4.75 | 4.20 | 3.25 | 3.09 |
Fe2+ | 1.68 | 1.51 | 1.77 | 1.73 | 1.06 | 1.16 |
Mn | 0.02 | 0.02 | 0.02 | 0.02 | 0.01 | 0.02 |
Ni | 0.02 | 0.03 | 0.01 | 0.06 | 0.05 | 0.06 |
Mg | 7.62 | 7.96 | 7.55 | 7.89 | 8.75 | 8.75 |
Ca | 0.02 | 0.01 | 0.02 | 0.01 | 0.00 | 0.00 |
Na | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 |
K | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
X Mg | 0.82 | 0.84 | 0.81 | 0.82 | 0.89 | 0.88 |
Mafic | to | Ultramafic |
SERPENTINE | ||
---|---|---|
ultramafite | ultramafite | |
Sample | CO1414 | CO1414 |
SiO2 | 41.65 | 41.47 |
Al2O3 | 3.28 | 2.90 |
TiO2 | 0.01 | 0.00 |
Cr2O3 | 0.04 | 0.07 |
NiO | 0.24 | 0.23 |
FeO | 6.66 | 6.22 |
MgO | 34.60 | 35.61 |
MnO | 0.09 | 0.09 |
CaO | 0.01 | 0.03 |
Na2O | 0.00 | 0.01 |
K2O | 0.00 | 0.00 |
Total | 86.58 | 86.65 |
Normalized to 9 cations | ||
Si | 2.56 | 2.54 |
Ti | 0.00 | 0.00 |
Cr | 0.00 | 0.00 |
Al | 0.24 | 0.21 |
Fe2+ | 0.34 | 0.32 |
Mn | 0.00 | 0.00 |
Ni | 0.01 | 0.01 |
Mg | 3.17 | 3.26 |
Ca | 0.00 | 0.00 |
Na | 0.00 | 0.00 |
K | 0.00 | 0.00 |
X Mg | 0.90 | 0.91 |
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