Prograde infiltration of Cl-rich fluid into the granulitic continental crust from a collision zone in East Antarctica (Perlebandet, Sør Rondane Mountains)
Utilizing microstructures of Cl-bearing biotite in pelitic and felsic metamorphic rocks, the timing of Cl-rich fluid infiltration is correlated with the pressure-temperature-time (P-T-t) path of upper amphibolite- to granulite-facies metamorphic rocks from Perlebandet, Sør Rondane Mountains (SRM), E...
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ftkyotouniv:oai:repository.kulib.kyoto-u.ac.jp:2433/229508 2023-05-15T13:35:46+02:00 Prograde infiltration of Cl-rich fluid into the granulitic continental crust from a collision zone in East Antarctica (Perlebandet, Sør Rondane Mountains) Kawakami, Tetsuo Higashino, Fumiko Skrzypek, Etienne Satish-Kumar, M. Grantham, Geoffrey Tsuchiya, Noriyoshi Ishikawa, Masahiro Sakata, Shuhei Hirata, Takafumi 河上, 哲生 東野, 文子 土屋, 範芳 石川, 正弘 坂田, 周平 平田, 岳史 2017-03 application/pdf http://hdl.handle.net/2433/229508 eng eng Elsevier BV 10.1016/j.lithos.2016.12.028 0024-4937 http://hdl.handle.net/2433/229508 Lithos 274-275 73 92 © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ The full-text file will be made open to the public on 01 March 2019 in accordance with publisher's 'Terms and Conditions for Self-Archiving' This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 CC-BY-NC-ND Fluid Brine Partial melting Al2SiO5 polymorphs Chlorine Continental collision Journal Article 2017 ftkyotouniv 2018-03-09T00:12:51Z Utilizing microstructures of Cl-bearing biotite in pelitic and felsic metamorphic rocks, the timing of Cl-rich fluid infiltration is correlated with the pressure-temperature-time (P-T-t) path of upper amphibolite- to granulite-facies metamorphic rocks from Perlebandet, Sør Rondane Mountains (SRM), East Antarctica. Microstructural observation indicates that the stable Al2SiO5 polymorph changed from sillimanite to kyanite + andalusite + sillimanite, and P-T estimates from geothermobarometry point to a counterclockwise P-T path characteristic of the SW terrane of the SRM. In situ laser ablation inductively coupled plasma mass spectrometry for U–Pb dating of zircon inclusions in garnet yielded ca. 580 Ma, likely representing the age of garnet-forming metamorphism at Perlebandet. Inclusion-host relationships among garnet, sillimanite, and Cl-rich biotite (Cl > 0.4 wt%) reveal that formation of Cl-rich biotite took place during prograde metamorphism in the sillimanite stability field. This process probably predated partial melting consuming biotite (Cl = 0.1–0.3 wt%). This was followed by retrograde, moderately Cl-bearing biotite (Cl = 0.1–0.3 wt%) replacing garnet. Similar timings of Cl-rich biotite formation in different samples, and similar f(H2O)/f(HCl) values of coexisting fluid estimated for each stage can be best explained by prograde Cl-rich fluid infiltration. Fluid-present partial melting at the onset of prograde metamorphism probably contributed to elevate the Cl concentration (and possibly salinity) of the fluid, and consumption of the fluid resulted in the progress of dehydration melting. The retrograde fluid was released from crystallizing Cl-bearing partial melts or derived externally. The prograde Cl-rich fluid infiltration in Perlebandet presumably took place at the uppermost part of the footwall of the collision boundary. Localized distribution of Cl-rich biotite and hornblende along large-scale shear zones and detachments in the SRM supports external input of Cl-rich fluids through tectonic boundaries during continental collision. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Kyoto University Research Information Repository (KURENAI) East Antarctica Perlebandet ENVELOPE(23.033,23.033,-71.917,-71.917) Sør Rondane Mountains ENVELOPE(25.000,25.000,-72.000,-72.000) Sør-Rondane ENVELOPE(25.000,25.000,-72.000,-72.000) |
institution |
Open Polar |
collection |
Kyoto University Research Information Repository (KURENAI) |
op_collection_id |
ftkyotouniv |
language |
English |
topic |
Fluid Brine Partial melting Al2SiO5 polymorphs Chlorine Continental collision |
spellingShingle |
Fluid Brine Partial melting Al2SiO5 polymorphs Chlorine Continental collision Kawakami, Tetsuo Higashino, Fumiko Skrzypek, Etienne Satish-Kumar, M. Grantham, Geoffrey Tsuchiya, Noriyoshi Ishikawa, Masahiro Sakata, Shuhei Hirata, Takafumi Prograde infiltration of Cl-rich fluid into the granulitic continental crust from a collision zone in East Antarctica (Perlebandet, Sør Rondane Mountains) |
topic_facet |
Fluid Brine Partial melting Al2SiO5 polymorphs Chlorine Continental collision |
description |
Utilizing microstructures of Cl-bearing biotite in pelitic and felsic metamorphic rocks, the timing of Cl-rich fluid infiltration is correlated with the pressure-temperature-time (P-T-t) path of upper amphibolite- to granulite-facies metamorphic rocks from Perlebandet, Sør Rondane Mountains (SRM), East Antarctica. Microstructural observation indicates that the stable Al2SiO5 polymorph changed from sillimanite to kyanite + andalusite + sillimanite, and P-T estimates from geothermobarometry point to a counterclockwise P-T path characteristic of the SW terrane of the SRM. In situ laser ablation inductively coupled plasma mass spectrometry for U–Pb dating of zircon inclusions in garnet yielded ca. 580 Ma, likely representing the age of garnet-forming metamorphism at Perlebandet. Inclusion-host relationships among garnet, sillimanite, and Cl-rich biotite (Cl > 0.4 wt%) reveal that formation of Cl-rich biotite took place during prograde metamorphism in the sillimanite stability field. This process probably predated partial melting consuming biotite (Cl = 0.1–0.3 wt%). This was followed by retrograde, moderately Cl-bearing biotite (Cl = 0.1–0.3 wt%) replacing garnet. Similar timings of Cl-rich biotite formation in different samples, and similar f(H2O)/f(HCl) values of coexisting fluid estimated for each stage can be best explained by prograde Cl-rich fluid infiltration. Fluid-present partial melting at the onset of prograde metamorphism probably contributed to elevate the Cl concentration (and possibly salinity) of the fluid, and consumption of the fluid resulted in the progress of dehydration melting. The retrograde fluid was released from crystallizing Cl-bearing partial melts or derived externally. The prograde Cl-rich fluid infiltration in Perlebandet presumably took place at the uppermost part of the footwall of the collision boundary. Localized distribution of Cl-rich biotite and hornblende along large-scale shear zones and detachments in the SRM supports external input of Cl-rich fluids through tectonic boundaries during continental collision. |
author2 |
河上, 哲生 東野, 文子 土屋, 範芳 石川, 正弘 坂田, 周平 平田, 岳史 |
format |
Article in Journal/Newspaper |
author |
Kawakami, Tetsuo Higashino, Fumiko Skrzypek, Etienne Satish-Kumar, M. Grantham, Geoffrey Tsuchiya, Noriyoshi Ishikawa, Masahiro Sakata, Shuhei Hirata, Takafumi |
author_facet |
Kawakami, Tetsuo Higashino, Fumiko Skrzypek, Etienne Satish-Kumar, M. Grantham, Geoffrey Tsuchiya, Noriyoshi Ishikawa, Masahiro Sakata, Shuhei Hirata, Takafumi |
author_sort |
Kawakami, Tetsuo |
title |
Prograde infiltration of Cl-rich fluid into the granulitic continental crust from a collision zone in East Antarctica (Perlebandet, Sør Rondane Mountains) |
title_short |
Prograde infiltration of Cl-rich fluid into the granulitic continental crust from a collision zone in East Antarctica (Perlebandet, Sør Rondane Mountains) |
title_full |
Prograde infiltration of Cl-rich fluid into the granulitic continental crust from a collision zone in East Antarctica (Perlebandet, Sør Rondane Mountains) |
title_fullStr |
Prograde infiltration of Cl-rich fluid into the granulitic continental crust from a collision zone in East Antarctica (Perlebandet, Sør Rondane Mountains) |
title_full_unstemmed |
Prograde infiltration of Cl-rich fluid into the granulitic continental crust from a collision zone in East Antarctica (Perlebandet, Sør Rondane Mountains) |
title_sort |
prograde infiltration of cl-rich fluid into the granulitic continental crust from a collision zone in east antarctica (perlebandet, sør rondane mountains) |
publisher |
Elsevier BV |
publishDate |
2017 |
url |
http://hdl.handle.net/2433/229508 |
long_lat |
ENVELOPE(23.033,23.033,-71.917,-71.917) ENVELOPE(25.000,25.000,-72.000,-72.000) ENVELOPE(25.000,25.000,-72.000,-72.000) |
geographic |
East Antarctica Perlebandet Sør Rondane Mountains Sør-Rondane |
geographic_facet |
East Antarctica Perlebandet Sør Rondane Mountains Sør-Rondane |
genre |
Antarc* Antarctica East Antarctica |
genre_facet |
Antarc* Antarctica East Antarctica |
op_relation |
10.1016/j.lithos.2016.12.028 0024-4937 http://hdl.handle.net/2433/229508 Lithos 274-275 73 92 |
op_rights |
© 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ The full-text file will be made open to the public on 01 March 2019 in accordance with publisher's 'Terms and Conditions for Self-Archiving' This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766070033287479296 |