Blueschist and eclogite in tectonic melange, Port Macquarie, New South Wales, Australia

Och, DJ; Leitch, EC; Caprarelli, G; Watanabe, T

Blueschist and eclogite in tectonic melange, Port Macquarie, New South Wales, Australia

Och, DJ Leitch, EC Caprarelli, G

Watanabe, T

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Publication Type:: Journal Article
Citation:: Mineralogical Magazine, 2003, 67 (4), pp. 609 - 624
Issue Date:: 2003-08-01

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Field	Value	Language
dc.contributor.author	Och, DJ	en_US
dc.contributor.author	Leitch, EC	en_US
dc.contributor.author	Caprarelli, G https://orcid.org/0000-0001-9578-3228	en_US
dc.contributor.author	Watanabe, T	en_US
dc.date.issued	2003-08-01	en_US
dc.identifier.citation	Mineralogical Magazine, 2003, 67 (4), pp. 609 - 624	en_US
dc.identifier.issn	0026-461X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/667
dc.description.abstract	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-apatite, 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.	en_US
dc.relation.ispartof	Mineralogical Magazine	en_US
dc.relation.isbasedon	10.1180/0026461036740121	en_US
dc.subject.classification	Geochemistry & Geophysics	en_US
dc.title	Blueschist and eclogite in tectonic melange, Port Macquarie, New South Wales, Australia	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	67	en_US
utslib.for	0403 Geology	en_US
utslib.for	0306 Physical Chemistry (incl. Structural)	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	closed_access
pubs.issue	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	67	en_US

Abstract:

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-apatite, 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.

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http://hdl.handle.net/10453/667