WinMIgob: A Windows program for magnetite–ilmenite geothermometer and oxygen barometer †
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| Publicado en: | Journal of Geosciences vol. 66, no. 1 (2021), p. 51 |
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| Autor principal: | |
| Publicado: |
Czech Geological Society
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| Materias: | |
| Acceso en línea: | Citation/Abstract Full Text Full Text - PDF |
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| 024 | 7 | |a 10.3190/jgeosci.319 |2 doi | |
| 035 | |a 2538451365 | ||
| 045 | 2 | |b d20210101 |b d20210331 | |
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| 100 | 1 | |a Yavuz, Fuat |u Department of Geological Engineering, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey | |
| 245 | 1 | |a WinMIgob: A Windows program for magnetite–ilmenite geothermometer and oxygen barometer † | |
| 260 | |b Czech Geological Society |c 2021 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a A Microsoft® Visual Basic software, called WinMIgob, has been developed for wet-chemical and electron-microprobe compositions of coexisting magnetite-ulvöspinel and ilmenite-hematite solid solutions to calculate the temperature (T, °C) and oxygen fugacity fO2) conditions of magmatic and metamorphic rocks. The program allows the users to enter total of 34 input variables, including Sample No, SiO2, TiO2, Al2O3, V2O3, Cr2O3, Nb2O3, Fe2O3, FeO, MnO, NiO, ZnO, MgO, CaO, Na2O, K2O, BaO (wt. %) for each magnetite and ilmenite compositional data. WinMIgob enables to enter and load multiple magnetite and ilmenite analyses in the programs data entry section. Alternatively, the composition of magnetite-ilmenite pairs can be typed in a blank Excel file as in the above order and then loaded into the programs data entry screen for data processing. The ferric and ferrous iron contents from microprobe-derived total FeO (wt. %) of magnetite-ilmenite compositions are estimated by stoichiometric constraints based on three different approaches. Using the calculated multiple magnetite and ilmenite analyses, WinMIgob estimates molecular (%) and mole fractions of magnetite, uvöspinel, ilmenite and hematite amounts. The program evaluates fourteen magnetite-ilmenite geothermometers, thirteen oxygen barometers and six relative to the nickel-nickel oxide (NNO) buffer values based on the different calibrations with various calculation methods. WinMIgob also allows the users to check if their magnetite-ilmenite pairs taken from rocks are within or departure from the Bacon-Hirschmann Mg/Mn exchange equilibrium line ± 2σ level. This program generates and stores all the calculated results in the Microsoft Excel file (i.e., Output.xlsx), which can be displayed and processed by any other software for further data presentation and graphing purposes. The compiled program code is distributed as a self-extracting setup file, including a help file, test data files and graphic files, which are intended to produce a high-quality printout. | |
| 653 | |a Magnetite | ||
| 653 | |a Magnesium | ||
| 653 | |a Aluminum oxide | ||
| 653 | |a Mathematical analysis | ||
| 653 | |a Manganese | ||
| 653 | |a Nickel | ||
| 653 | |a Oxygen | ||
| 653 | |a Vanadium oxides | ||
| 653 | |a Haematite | ||
| 653 | |a Barometers | ||
| 653 | |a Data entry | ||
| 653 | |a Metamorphic rocks | ||
| 653 | |a Silica | ||
| 653 | |a Ferric oxide | ||
| 653 | |a Titanium dioxide | ||
| 653 | |a Barium oxides | ||
| 653 | |a Hematite | ||
| 653 | |a Software | ||
| 653 | |a Ilmenite | ||
| 653 | |a Silicon dioxide | ||
| 653 | |a Nickel oxides | ||
| 653 | |a Minerals | ||
| 653 | |a Data processing | ||
| 653 | |a Spreadsheets | ||
| 653 | |a Calibration | ||
| 653 | |a Windows (computer programs) | ||
| 653 | |a Zinc oxide | ||
| 653 | |a Geothermometers | ||
| 653 | |a Chemical composition | ||
| 653 | |a Computers | ||
| 653 | |a Computer programs | ||
| 653 | |a Solid solutions | ||
| 653 | |a Graphics | ||
| 653 | |a Personal computers | ||
| 653 | |a Fugacity | ||
| 653 | |a Igneous rocks | ||
| 653 | |a Data analysis | ||
| 653 | |a Environmental | ||
| 773 | 0 | |t Journal of Geosciences |g vol. 66, no. 1 (2021), p. 51 | |
| 786 | 0 | |d ProQuest |t Science Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/2538451365/abstract/embedded/L8HZQI7Z43R0LA5T?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text |u https://www.proquest.com/docview/2538451365/fulltext/embedded/L8HZQI7Z43R0LA5T?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/2538451365/fulltextPDF/embedded/L8HZQI7Z43R0LA5T?source=fedsrch |