Petrological and geochemical characteristics of selected epidote group minerals

Supplementary material for Master Thesis: Petrological and Geochemical Characteristics of Selected Epidote Group Minerals by Laura-Jane Inge Zaminer

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Description:

This repository contains the complete supplementary dataset accompanying the Master Thesis Petrological and Geochemical Characteristics of Selected Epidote Group Minerals. The dataset includes all EPMA mineral chemical analyses of epidote, clinozoisite and zoisite, which are provided in Table A1_Appendix EPMA Data Epidote-Clinozoisite-Zoisite.xlsx. Trace-element concentrations of epidote, clinozoisite and zoisite were determined by LA-ICP-MS. The complete trace element dataset is available in Table A2_Appendix LA-ICP-MS Data.xlsx. Where additional minerals occurred, EPMA analyses were performed on calcite, feldspar, pyroxene, amphibole and garnet. The corresponding raw analytical data are included in the supplementary dataset and are provided in Table A3_Appendix EPMA Data Feldspar-Amphibole-Pyroxene-Garnet.xlsx. These datasets comprise the complete analytical results used for the mineral classification, structural formula calculations and geochemical interpretation presented in this thesis.

Epidote group minerals are common sorosilicates occurring in a wide range of metamorphic, hydrothermal and magmatic environments. Due to their chemical variability and trace element incorporation, they represent valuable indicators of metamorphic evolution, fluid interaction and element mobility. Mineral classification was performed following the nomenclature of Armbruster et al. (2006). Recalculated cation occupancies at the A1 and M3 structural sites were used for that matter. The investigated samples comprise compositions ranging from zoisite to clinozoisite and epidote. To evaluate gemmological properties and trace element characteristics, gem quality zoisite samples were studied additionally. The investigated mineral assemblages and geochemical characteristics reflect formation under metamorphic conditions ranging from greenschist- to eclogite-facies, as well as hydrothermal environments characterized by both reducing and oxidizing conditions. The results demonstrate considerable variability in mineral chemistry and trace element signatures, reflecting the combined influence of protolith composition, metamorphic evolution and fluid-rock interaction.

Data Structure and Content

The provided spreadsheet files are organized into distinct tabs corresponding to each locality:

Epidote, Clinozoisite, Zoisite

Table A1_1 - Representative EPMA Data of the epidote sample "Knappenwand light"
Table A1_2 - Representative EPMA Data of the epidote sample "Knappenwand dark"
Table A1_3 - Representative EPMA Data of epidote in sample Rio Marina 2_2
Table A1_4 - Representative EPMA Data of epidote in sample Rio Marina 3_1
Table A1_5 - Representative EPMA Data of epidote in sample Gruppenarbeit 14B from Elba, Italy
Table A1_6 - Representative EPMA Data of the epidote from Kyrgyzstan
Table A1_7 - Representative EPMA Data of the zoisite samples from Pakistan
Table A1_8 - Representative EPMA Data of the clinozoisite samples from Pakistan
Table A1_9 - Representative EPMA Data of zoisite and clinozoisite in sample Thulite Leksvik 4
Table A1_10 - Representative EPMA Data of zoisite and clinozoisite in sample Thulite Snillfjorden 1
Table A1_11 - Representative EPMA Data of epidote in sample Epidote 1, Norway
Table A1_12 - Representative EPMA Data of epidote in sample Epidote 2, Norway
Table A1_13 - Representative EPMA Data of the tanzanite samples from Merelani
Table A1_14 - Representative EPMA Data of zoisite in sample EQ5, Saualpe
Table A1_15 - Representative EPMA Data of zoisite and clinozoisite in sample EZ12, Saualpe
Table A1_16 - Representative EPMA Data of the sample "Epidote large crystal"

Epidote, Clinozoisite, Zoisite

Table A2_1 - Representative LA-ICP-MS Data of the epidote sample "Knappenwand light"
Table A2_2 - Representative LA-ICP-MS Data of the epidote sample "Knappenwand dark"
Table A2_3 - Representative LA-ICP-MS Data of epidote in sample Rio Marina 2_2
Table A2_4 - Representative LA-ICP-MS Data of epidote in sample Rio Marina 3_1
Table A2_5 - Representative LA-ICP-MS Data of epidote in sample Gruppenarbeit 13 und 14B from Elba, Italy
Table A2_6 - Representative LA-ICP-MS Data of the epidote from Kyrgyzstan
Table A2_7 - Representative LA-ICP-MS Data of the zoisite samples from Pakistan
Table A2_8 - Representative LA-ICP-MS Data of the clinozoisite samples from Pakistan
Table A2_9 - Representative LA-ICP-MS Data of zoisite and clinozoisite in sample Thulite Leksvik 4
Table A2_10 - Representative LA-ICP-MS Data of zoisite and clinozoisite in sample Thulite Snillfjorden 1
Table A2_11 - Representative LA-ICP-MS Data of epidote in sample Epidote 1, Norway
Table A2_12 - Representative LA-ICP-MS Data of epidote in sample Epidote 2, Norway
Table A2_13 - Representative LA-ICP-MS Data of the tanzanite samples from Merelani
Table A2_14 - Representative LA-ICP-MS Data of zoisite in sample EQ5, Saualpe
Table A2_15 - Representative LA-ICP-MS Data of zoisite in sample EZ12, Saualpe
Table A2_16 - Representative LA-ICP-MS Data of the sample "Epidote large crystal"

Amphibole, Pyroxene, Feldspar, Garnet, Calcite

Table A3_1 - Raw EPMA Data of amphibole inclusions in epidote sample "Knappenwand dark"
Table A3_2 - Raw EPMA Data of chlorite and feldspar in sample Rio Marina 2_2
Table A3_3 - Raw EPMA Data of chlorite in sample Rio Marina 3_1
Table A3_4 - Raw EPMA Data feldspar inclusions in epidote from Kyrgyzstan
Table A3_5 - Raw EPMA Data of pyroxene in sample Thulite Leksvik 4
Table A3_6 - Raw EPMA Data of feldspar in sample Thulite Snillfjorden 1
Table A3_7 - Raw EPMA Data of amphibole in sample Epidote 1, Norway
Table A3_8 - Raw EPMA Data of feldspar in sample Epidote 2, Norway
Table A3_9 - Raw EPMA Data of pyroxene and amphibole in sample EQ5, Saualpe
Table A3_10 - Raw EPMA Data of garnet, pyroxene and amphibole in sample EZ12, Saualpe

Keywords: Epidote, Zoisite, Clinozoisite, Armbruster, Tanzanite, Thulite, Piemontite, Geochronology, EPMA, LA-ICP-MS