Research Article
Sources and Effects of Fluids in Continental Retrograde Shear Zones: Insights from the Kuckaus Mylonite Zone, Namibia
Table 1
Compositional ranges for the biotite gneiss, Tsirub Gneiss, and the leucogranite.
| | Biotite gneiss | Tsirub Gneiss | Leucogranite |
| SiO2 | 61.98-71.50 | 66.36-74.38 | 70.52-79.80 | TiO2 | 0.13-0.89 | 0.13-0.20 | 0.13-0.30 | Al2O3 | 13.80-15-.22 | 13.53-15.03 | 9.12-14.18 | Fe2O3 | 1.73-7.79 | 1.31-4.15 | 1.22-2.56 | MnO | 0.01-0.12 | 0.02-0.07 | 0.02-0.03 | MgO | 0.34-3.18 | 0.25-1.11 | 0.13-0.45 | CaO | 0.14-4.52 | 0.45-1.51 | 0.10-0.50 | Na2O | 2.44-4.66 | 2.58-3.37 | 0.25-3.47 | K2O | 3.14-6.51 | 4.29-6.19 | 4.61-6.79 | P2O5 | 0.07-0.22 | 0.07-0.28 | 0.04-0.18 | SO3 | 0.00-0.01 | 0.00-0.01 | 0.00-0.01 | Cr2O3 | 0.00-0.03 | 0.00-0.02 | 0.00 | NiO | 0.01 | 0.01-0.02 | 0.01 | H2O- | 0.07-0.19 | 0.18-0.31 | 0.06-0.17 | LOI | 0.73-1.38 | 0.62-1.79 | 0.66-1.40 | Total | 98.90-99.46 | 98.95-99.67 | 98.89-99.56 |
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