Table 3.1a: Results of microprobe analysis and temperature calculations, HMB diorite

Transcription

1 Table 3.1a: Results of microprobe analysis and temperature calculations, HMB diorite Microprobe analysis of coexisting hornblende-plagioclase pairs in O/C-118a Analysis Location SiO TiO Al2O FeO MnO MgO CaO Na2O K2O Total Si Al Al Ti Fe Mg Fe Mn Ca Fe Mn Ca Na Na K Mg-# Calculation of temperatures using thermometers A and B at pressure P P (kbar) A: T ( C) average 1σ P (kbar) B: T ( C)

2 Table 3.1b: Results of microprobe analysis and temperature calculations, HMB diorite Microprobe analysis of coexisting hornblende-plagioclase pairs in O/C-376 Analysis Location SiO TiO Al2O FeO MnO MgO CaO Na2O K2O Total Si Al Al Ti Fe Mg Fe Mn Ca Fe Mn Ca Na Na K Mg-# Calculation of temperatures using thermometers A and B at pressure P P (kbar) A: T ( C) average 1σ P (kbar) B: T ( C)

3 Table 3.2: Results of microprobe analysis and temperature calculations, HQ diorite Microprobe analysis of coexisting hornblende-plagioclase pairs in O/C-229 Analysis Location SiO TiO Al2O FeO MnO MgO CaO Na2O K2O Total Si Al Al Ti Fe Mg Fe Mn Ca Fe Mn Ca Na Na K Mg-# Calculation of temperatures using thermometers A and B at pressure P P (kbar) A: T ( C) average 1σ P (kbar) B: T ( C)

4 Table 3.3a: Results of microprobe analysis and temperature calculations, metagabbro Microprobe analysis of coexisting hornblende-plagioclase pairs in MRH-78/1 Analysis Location SiO TiO Al2O FeO MnO MgO CaO Na2O K2O Total Si Al Al Ti Fe Mg Fe Mn Ca Fe Mn Ca Na Na K Mg-# Calculation of temperatures using thermometer B. Pressure P is assumed. P (kbar) T ( C) average 1σ

5 Table 3.3b: Results of microprobe analysis and temperature calculations, metagabbro Microprobe analysis of coexisting hornblende-plagioclase pairs in MRH-78/2 Analysis Location SiO TiO Al2O FeO MnO MgO CaO Na2O K2O Total Si Al Al Ti Fe Mg Fe Mn Ca Fe Mn Ca Na Na K Mg-# Calculation of temperatures using thermometer B. Pressure P is assumed. P (kbar) T ( C) average 1σ

6 Table 3.3c: Results of microprobe analysis and temperature calculations, metagabbro Microprobe analysis of coexisting hornblende-plagioclase pairs in O/C-373 Analysis Location SiO TiO Al2O FeO MnO MgO CaO Na2O K2O Total Si Al Al Ti Fe Mg Fe Mn Ca Fe Mn Ca Na Na K Mg-# Calculation of temperatures using thermometer B. Pressure P is assumed. P (kbar) T ( C) average 1σ

7 Table 3.4: Chemical analyses and proportional formula for run products (Poli, 1993) and results of temperature calculations using the geothermometers of Blundy and Holland (1994) Microprobe analyses of run products (Poli, 1993) P-T conditions of experimental runs (Poli, 1993) Run-# R8a R5a R11c Run-# R8a R5a R11c SiO P (kbar) TiO T ( C) Al2O FeO Fe2O3* MnO MgO Results applying geothermometers (A) and (B) CaO Na2O Temperatures calculated by K2O Holland and Blundy (1994; p.442) H2O* (A) T ( C) Total (B) T ( C) Recalulation of microprobe analysis of amphiboles 2. Temperatures calculated using the Microsoft following method of Holland and Blundy (1994) with Excel macro programmed for this study site-allocation following Robinson et al. (1982) with the equations given in the text Si (A) T ( C) Al (B) T ( C) Al Ti Fe Mg Fe Mn Ca Fe Mn Ca Na Na K Compositions of coexisting plagiolcase X ab plag X an plag * Poli (1993) recalulated H2O and Fe2O3 wt. percent on the basis of 2OH and Fe3+/Fe(total) = 0.2 in the formula, respectively 180