Blueschist and eclogite in tectonic melange, Port Macquarie, New South Wales, Australia
العنوان: | Blueschist and eclogite in tectonic melange, Port Macquarie, New South Wales, Australia |
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المؤلفون: | Evan C. Leitch, Graziella Caprarelli, D. J. Och, T. Watanabe |
سنة النشر: | 2003 |
مصطلحات موضوعية: | Blueschist, Geochemistry & Geophysics, 010504 meteorology & atmospheric sciences, Metamorphic rock, Glaucophane, Geochemistry, Schist, Metamorphism, Mélange, engineering.material, 010502 geochemistry & geophysics, 01 natural sciences, Gondwana, Geochemistry and Petrology, engineering, Eclogite, Geology, 0105 earth and related environmental sciences |
الوصف: | The Rocky Beach Metamorphic Melange contains metre-scale phacoids of high-P low-T metamorphic rocks embedded in chlorite-actinolite schist. The phacoids include eclogite, glaucophane schist and omphacitite and provide evidence for four episodes of metamorphism with mineral assemblages: M1 = actinolite-glaucophane-titanite-apaite, M2 = almandine-omphacite-lawsonite ±quartz, M3 = phengite- glaucophane-K-feldspar-quartz, and M4 = chlorite-actinolite-calcite-quartz-titanite-white mica ± albite ± talc. M1-M3 occurred at a Neoproterozoic-Early Palaeozoic convergent plate boundary close to the eastern margin of Gondwana. Peak metamorphic conditions were attained during the static phase M2, with temperatures of ~560°C and pressures in excess of 1.8 GPa, equivalent to a depth of burial of at least 54 km. |
وصف الملف: | application/pdf |
URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4e91ab18ff91c5e462f2d5d803f6580 https://hdl.handle.net/10453/667 |
حقوق: | OPEN |
رقم الأكسشن: | edsair.doi.dedup.....d4e91ab18ff91c5e462f2d5d803f6580 |
قاعدة البيانات: | OpenAIRE |
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