Dataset for "Copper redistribution from shallow oxidized magmas to mafic enclaves. Insight from anomalously Cu-enriched enclaves from Bezymianny volcano, Kamchatka"

Description

This dataset includes all the data used for the paper submitted to Geochimica et Cosmochimica Acta, entitled: "Copper redistribution from shallow oxidized magmas to mafic enclaves. Insight from anomalously Cu-enriched enclaves from Bezymianny volcano, Kamchatka". Excel file is provided with the following tables on separate sheets: Table S1. Sample list Table S2. Average matrix glass composition Table S3. Sulfides composition Table S4. Whole rock chemistry data (XRF and ICP analyses) Table S5. Ilmenite-Ti-magnetite composition and oxybarometry data Table S6. Amphibole composition and P-T-fO2 data Word file includes: Table 1. Matrix glass composition, average analyses. Major elements (wt. %) content by EMPA, Cu (ppm) by LA-ICP-MS. Blue – previously published in Davydova et al., 2022. Table 2. Representative analyses of sulfide phases composition. Table 3. Major elements (XRF) and Cu (ICP) analyses of the Bezymianny rocks. Other trace elements are represented in supplementary materials. Blue – previously published in Davydova et al., 2022.

Steps to reproduce

Whole-rock major and trace element analyses were performed at the Center of Isotope-Geochemical Studies, Vinogradov Institute of Geochemistry, Russian Academy of Sciences, Siberian Branch (IGS SB RAS). X-ray fluorescence (XRF) analyses were carried out using a Multichannel X-Ray Spectrometer SRM-25, “Orelnauchpribor”, Russia, following the methods discussed by (Antipin et al., 2016). Trace element content was determined by inductively coupled plasma mass spectrometry (ICP-MS) on an ELEMENT 2 mass spectrometer using the method by (Perepelov et al., 2007). Analytical quality was assessed using USGS international standard samples (BHVO-1, BHVO-2, AGV-1, AGV-2). The minerals were analyzed with a Jeol JSM-IT500 scanning electron microscope (20 kV and 0.7 nA) equipped with Oxford X-MaxN energy-dispersive analytical setup at the Department of Petrology, Geological Faculty, Moscow State University. A counting livetime was to 100 s with 25-30% of detector deadtime. Pyrite and pure metals were used as primary standards. Natural pyrite, chalcopyrite, bornite, chalcocite, and pyrrhotite were used as secondary standards to estimate possible errors in Fe/Cu/S ratios. Glasses were analyzed by electron microprobe analysis via a JEOL JXA-8230 at the Geology Department of Lomonosov Moscow State University. The analytical conditions were 15 kV accelerating voltage, 6 nA beam current, and 7 µm beam diameter.

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