WebThe amount of CO2 stored in FI varies from 0.1 μg(CO2)/g(sample) in olivine from the anhydrous mantle xenoliths at Greene Point and Handler Ridge, up to 187.3 μg/g in orthopyroxene from the highly metasomatized amphibole-bearing lherzolites at Baker Rocks, while the corresponding bulk CO2 contents range from 0.3 to 57.2 μg/g. WebThe olivine-clinopyroxene (Fe-Mg partition) geothermometer of Powell and Powell (1974) was derived on the basis of clinopyroxene mixing parameters which imply a large …
Partitioning of copper between olivine, orthopyroxene, …
Web26. sep 2014. · Potential Orthopyroxene, Clinopyroxene and Olivine Reference Materials for In Situ Lithium Isotope Determination. Ben-Xun Su, Corresponding Author. Ben-Xun Su. State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, … Web29. mar 2024. · The olivine, orthopyroxene, colourless clinopyroxene and spinel xenocrysts are derived from different depths of the subcontinental lithospheric mantle … gvad the pilot
Phlogopite-pargasite coexistence in an oxygen reduced spinel …
WebA suite of Neoproterozoic dolerite dykes from Southern Granulite Terrain show replacement of magmatic phases (plagioclase and olivine/clinopyroxene/Fe-Ti oxides)by metamorphic minerals.Based on presence of olivine,two types of dykes,olivine-bearing and olivine-absent,are identified.In olivine-bearing dykes,olivine and plagioclase are replaced by … Web13. maj 2024. · The dunite sample 17TP21 contains a ~3-cm spinel- and pyroxene-bearing vein , which consists of 61% olivine, 25% orthopyroxene, 12% clinopyroxene, and 2% spinel. The boundary between the dunite and pyroxene-bearing vein is not sharp. Both orthopyroxene and clinopyroxene have comparable grain sizes and show … WebOlivine websterites contain 6570 modal% pyroxene with variable proportions of clinopyroxene and orthopyroxene. … Amphibole occurs as patches within the clinopyroxene, showing secondary feathers. Porphyroclasts of orthopyroxene enclose olivine (Fig. 6b) and contain exsolution lamellae of clinopyroxene. gva by region ons