Spinel granulite in Odesan area, South Korea: Tectonic implications for the collision between the North and South China blocks
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Oh, Chang Whan; Kim, Sung Won; Williams, Ian
Description
Spinel granulite formed in the Fe-Al-rich layers in migmatitic gneiss adjacent to a late Paleozoic collision-related mangerite intrusion in the Odesan area, eastern Gyeonggi Massif, South Korea, contains the high-temperature (HT) assemblage Crd + Spl + Crn. Spinel and cordierite compositions indicate peak metamorphic conditions of 914-1157 °C. Retrograde metamorphism reached amphibolite facies where garnet and cordierite broke down to biotite, sillimanite and quartz. These conditions, and the...[Show more]
dc.contributor.author | Oh, Chang Whan | |
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dc.contributor.author | Kim, Sung Won | |
dc.contributor.author | Williams, Ian | |
dc.date.accessioned | 2015-12-07T22:30:26Z | |
dc.identifier.issn | 0024-4937 | |
dc.identifier.uri | http://hdl.handle.net/1885/22316 | |
dc.description.abstract | Spinel granulite formed in the Fe-Al-rich layers in migmatitic gneiss adjacent to a late Paleozoic collision-related mangerite intrusion in the Odesan area, eastern Gyeonggi Massif, South Korea, contains the high-temperature (HT) assemblage Crd + Spl + Crn. Spinel and cordierite compositions indicate peak metamorphic conditions of 914-1157 °C. Retrograde metamorphism reached amphibolite facies where garnet and cordierite broke down to biotite, sillimanite and quartz. These conditions, and the reactions inferred from mineral textures, are consistent with a clockwise P-T path. Metamorphic zircon overgrowths in the spinel granulite and enclosing migmatitic gneiss, dated by SHRIMP U-Pb, yield Permo-Triassic ages of 245 ± 10 and 248 ± 18 Ma respectively, consistent with the metamorphism being a product of the late Paleozoic collision between the North and South China blocks within South Korea. The zircon core ages and textures suggest that the ultimate source of the spinel granulite was a Paleoproterozoic (1852 ± 14 Ma) igneous rock. The protolith of the host migmatitic gneiss was a sediment derived principally from 2.49, 2.16 and 1.86 Ga sources. The age and conditions of spinel granulite metamorphism are similar to those of spinel-bearing granulite in the Higo terrane in west-central Kyushu (250 Ma, > 950 °C at 8-9 kbar), consistent with a continuation of the Dabie-Sulu collision zone into Japan through the Odesan area. | |
dc.publisher | Elsevier | |
dc.source | Lithos | |
dc.subject | Keywords: amphibolite facies; collision zone; continental collision; cordierite; granulite; high temperature; igneous intrusion; P-T conditions; P-T-t path; Paleozoic; remineralization; retrograde metamorphism; spinel; tectonic evolution; Asia; Eurasia; Far East; K Permo-Triassic continental collision; SHRIMP zircon U-Pb ages; South Korea; Spinel granulite | |
dc.title | Spinel granulite in Odesan area, South Korea: Tectonic implications for the collision between the North and South China blocks | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 92 | |
dc.date.issued | 2006 | |
local.identifier.absfor | 040203 - Isotope Geochemistry | |
local.identifier.absfor | 040304 - Igneous and Metamorphic Petrology | |
local.identifier.absfor | 040313 - Tectonics | |
local.identifier.ariespublication | u4047674xPUB21 | |
local.type.status | Published Version | |
local.contributor.affiliation | Oh, Chang Whan, Chonbuk National University | |
local.contributor.affiliation | Kim, Sung Won, Chonbuk National University | |
local.contributor.affiliation | Williams, Ian, College of Physical and Mathematical Sciences, ANU | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.issue | 3-4 | |
local.bibliographicCitation.startpage | 557 | |
local.bibliographicCitation.lastpage | 575 | |
local.identifier.doi | 10.1016/j.lithos.2006.03.051 | |
dc.date.updated | 2015-12-07T10:04:32Z | |
local.identifier.scopusID | 2-s2.0-33751087181 | |
Collections | ANU Research Publications |
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