TWQ_Comb

TWQ_Comb

TWQ_CombTWQ_Comb is a ©MS Windows freeware for automatic generation of all possible combinations of selected microprobe analyses and for their processing by the CMP.EXE and TWQ.EXE programs (from the TWQ package of R.G. Berman et al.) running in the batch mode...

About permutational approach in geothermobarometry

 Let's assume that you have got a great number of micro-probe analyses from a small area of a sample/thin section (e.g. 10 Opx, 10 Grt, 5 Bt and 5 Pl) and are going to estimate P-T parameters using the THERMOCALC and AX programs, or by the TWQ package of R.G. Berman et al. Which combination of analyses demonstrates the "best" (the most closely-grouped) intersections of the curves? In this example, you must check 10×10×5×5=2500 possible combinations...

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