The distribution of volatile and metallic elements in the Macquarie Island glasses and melt inclusions
Primary sulfur abundances and the oxidation state of sulfur in the Macquarie Island glasses and melt inclusions: implications for the sulfur budget during seafloor alteration. The distribution of volatile and metallic elements in the Macquarie Island glasses and melt inclusions: Implications for fra...
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| Format: | Dataset |
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Australian Antarctic Data Centre
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| Online Access: | https://researchdata.ands.org.au/distribution-volatile-metallic-melt-inclusions/699399 https://doi.org/10.4225/15/548925146CA3B https://data.aad.gov.au/metadata/records/ASAC_1073_1142 http://nla.gov.au/nla.party-617536 |
| Summary: | Primary sulfur abundances and the oxidation state of sulfur in the Macquarie Island glasses and melt inclusions: implications for the sulfur budget during seafloor alteration. The distribution of volatile and metallic elements in the Macquarie Island glasses and melt inclusions: Implications for fractional crystallisation and degassing during seafloor basaltic magmatism. Macquarie Island basaltic glasses and melt inclusions represent the products of mantle melting, crystal fractionation and degassing in mid-ocean ridge environment. State-of-art analytical techniques will be employed to quantify systematics of volatile and ore-forming elements in different magmatic processes. Implications for the origin of seafloor massive sulphide deposits are expected. 1. Spreadsheet 'MacIsl-glasses' contains chemical analyses of the Macquarie Island glasses rows 4-8 - radiogenic isotope ratios (Nd, Sr, Pb) - see analytical details in Kamenetsky, V.S., and Maas, R., 2002, Mantle-melt evolution (dynamic source) in the origin of a single MORB suite: a perspective from magnesian glasses of Macquarie Island: Journal of Petrology, v. 43, p. 1909-1922. rows 10-25 - major petrogenetic elements in weight %. rows 29-57 and 60-83 - trace elements in ppm (parts per million). 2. Spreadsheet 'MI_in_Sp' contains chemical analyses (major elements + chlorine + sulfur) of homogenised and quenched melt inclusions in chromites from Macquarie Island picrites. The concentrations are in weight %. 3. Spreadsheet 'MI_in_Sp-GEO' contains compositions (trace elements by SIMS) of homogenised and quenched melt inclusions in chromites from Macquarie Island picrite #38277 rows 3-16 - major petrogenetic elements in weight %. rows 19-43 - trace elements in ppm (parts per million). The specific equipment used to analyse the data were 1. Electron microprobes Cameca SX-50 (University of Tasmania) and JEOL Superprobe 8200 (Max-Planck-Institut fur Chemie, Mainz, Germany); 2. Fourier-transform infrared spectroscopy (University of Tasmania); 3. Laser-ablation inductively-coupled plasma mass-spectrometry (ANU, Canberra and CODES, University of Tasmania); 4. Secondary ion mass-spectroscopy, Cameca 3f ion probe (Institute of Microelectronics, Russia) 5. Finnigan MAT262 multicollector mass-spectrometer (La Trobe University, Melbourne) The samples were collected from Macquarie Island. The exact position of the samples is shown on Fig. 1b in Kamenetsky, V.S., Everard, J.L., Crawford, A.J., Varne, R., Eggins, S.M., and Lanyon, R., 2000, Enriched end-member of primitive MORB melts: petrology and geochemistry of glasses from Macquarie Island (SW Pacific): Journal of Petrology, v. 41, p. 411-430. The particular isotope stated was used to measure the element. Total elemental concentration is reported. The fields in this dataset are: SiO2 TiO2 Al2O3 FeO MnO MgO CaO Na2O K2O P2O5 Cl S Cr2O3 Potassium Cesium Lithium Beryllium Boron Scandium Titanium Vandium Gallium Rubidium Strontium Yttrium Zirconium Niobium Barium Lanthanum Cerium Neodymium Samarium Europium Gadolinium Dysprosium Erbium Ytterbium Lutetium Tantalum Thorium Uranium Chromium Cobalt Nickel Copper Zinc Arsenic Molybdenum Cadmium Tin Antimony Hafnium Tantalum Tungsten Thallium Lead Bismuth |
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