Table 2.

Whole-rock major oxide (wt%) and normative compositions

Sample:L1412L1414AL1414BL1458BL1487L1488L1489L1490L1491L1492L1493
SiO258.8869.1066.8060.8854.9470.9066.7044.9069.5757.1074.70
TiO20.520.140.290.750.890.260.453.130.260.730.05
Al2O320.2417.4018.0011.9416.9115.9017.7011.3016.6419.8014.40
ƩFe2O34.801.482.1512.797.441.502.6122.201.975.010.63
MnO0.06n.d.n.d.0.240.09n.d.n.d.0.31n.d.n.d.n.d.
MgO2.160.901.299.854.540.861.404.640.552.400.12
CaO3.732.342.301.236.232.071.989.042.561.171.34
Na2O5.846.206.341.743.635.475.521.795.690.754.70
K2O2.501.431.940.251.492.192.300.931.6611.103.62
P2O50.12n.d.0.13n.d.0.360.080.120.300.060.12n.d.
SO2n.d.n.d.0.05n.d.0.26n.d.n.d.0.29n.d.n.d.n.d.
LOI1.000.840.890.003.100.881.480.660.901.710.22
Sum99.8599.83100.1899.6799.88100.11100.2699.4999.8699.8999.78
Qz2.020.615.025.56.224.518.623.02.130.2
Crn1.41.51.66.61.02.81.04.70.3
Or14.88.511.51.58.812.913.65.59.865.621.4
Ab49.452.553.614.730.746.346.715.148.16.339.8
An17.711.310.66.025.49.79.020.112.35.06.6
Di2.519.3
Hy10.83.95.540.117.83.76.124.43.511.21.0
Ol0.5
Mag1.00.30.52.81.60.30.64.80.41.10.1
Ilm1.00.30.61.41.70.50.95.90.51.40.1
Ap0.30.10.30.90.20.30.70.10.3
Py0.10.50.5

Qz, quartz; Crn, corundum; Or, orthoclase; Ab, albite; An, anorthite; Di, diopside; Hy, hypersthene; Ol, olivine; Mag, magnetite; Ilm, ilmenite; Ap, apatite; Py, pyrite. Total Fe oxide shown as Fe2O3. Fe2O3/FeO = 0.15 assumed for normative calculations. LOI, loss on ignition.