Petrogenesis of the Hughes Bluff granitic pluton in the Transantarctic Mountains, Antarctica
In order to elucidate the petrogenesis of the Hughes Bluff granitic pluton, the petrological and geochemical studies were conducted, and the results show that the Hughes Bluff granitic pluton is composed of monzogranite, intruded by fine-grained monzogranite dikes in the later period. They both are...
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Institute of Geomechanics, Chinese Academy of Geological Sciences
2021
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ftdoajarticles:oai:doaj.org/article:fc2b6161715d441aba8ee1a5eeeb8e5a 2023-05-15T13:56:54+02:00 Petrogenesis of the Hughes Bluff granitic pluton in the Transantarctic Mountains, Antarctica CUI Yingchun MA Lijie LIU Chenguang WANG Qingchao LÄUFER Andreas 2021-10-01T00:00:00Z https://doi.org/10.12090/j.issn.1006-6616.2021.27.05.064 https://doaj.org/article/fc2b6161715d441aba8ee1a5eeeb8e5a ZH chi Institute of Geomechanics, Chinese Academy of Geological Sciences https://journal.geomech.ac.cn//article/doi/10.12090/j.issn.1006-6616.2021.27.05.064 https://doaj.org/toc/1006-6616 1006-6616 doi:10.12090/j.issn.1006-6616.2021.27.05.064 https://doaj.org/article/fc2b6161715d441aba8ee1a5eeeb8e5a Dizhi lixue xuebao, Vol 27, Iss 5, Pp 783-795 (2021) the transantarctic mountains petrogenesis pluton i-type granite Geology QE1-996.5 article 2021 ftdoajarticles https://doi.org/10.12090/j.issn.1006-6616.2021.27.05.064 2023-02-26T01:33:39Z In order to elucidate the petrogenesis of the Hughes Bluff granitic pluton, the petrological and geochemical studies were conducted, and the results show that the Hughes Bluff granitic pluton is composed of monzogranite, intruded by fine-grained monzogranite dikes in the later period. They both are characterized by high abundance of silicon, alkali and potassium, enriched in Rb, Th, U and K and depleted in Nb, Ta, Nd and Ti relative to those of the primitive mantle, with the Rittmann Indexes less than 3 and the A/CNK values less than 1. They both also have a low total amount of rare earth elements and an abundance of light rare earth, showing weakly negative Eu anomaly and slightly positive Eu anomaly in the chondrite-normalized REE pattern for the monzogranite and granitic monzogranite dike respectively. All the data show that the rocks from the Hughes Bluff granitic pluton belong to the I-type granites, and the source region is probably the lower continental crust, but the contribution of mantle material cannot be ruled out. The magma in the source region underwent varying degrees of fractional crystallization of plagioclase, ilmenite, rutile and apatite, and was derived from a volcanic island arc environment related to subduction. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Transantarctic Mountains Rittmann ENVELOPE(165.500,165.500,-73.450,-73.450) Hughes Bluff ENVELOPE(162.200,162.200,-75.400,-75.400) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Chinese |
topic |
the transantarctic mountains petrogenesis pluton i-type granite Geology QE1-996.5 |
spellingShingle |
the transantarctic mountains petrogenesis pluton i-type granite Geology QE1-996.5 CUI Yingchun MA Lijie LIU Chenguang WANG Qingchao LÄUFER Andreas Petrogenesis of the Hughes Bluff granitic pluton in the Transantarctic Mountains, Antarctica |
topic_facet |
the transantarctic mountains petrogenesis pluton i-type granite Geology QE1-996.5 |
description |
In order to elucidate the petrogenesis of the Hughes Bluff granitic pluton, the petrological and geochemical studies were conducted, and the results show that the Hughes Bluff granitic pluton is composed of monzogranite, intruded by fine-grained monzogranite dikes in the later period. They both are characterized by high abundance of silicon, alkali and potassium, enriched in Rb, Th, U and K and depleted in Nb, Ta, Nd and Ti relative to those of the primitive mantle, with the Rittmann Indexes less than 3 and the A/CNK values less than 1. They both also have a low total amount of rare earth elements and an abundance of light rare earth, showing weakly negative Eu anomaly and slightly positive Eu anomaly in the chondrite-normalized REE pattern for the monzogranite and granitic monzogranite dike respectively. All the data show that the rocks from the Hughes Bluff granitic pluton belong to the I-type granites, and the source region is probably the lower continental crust, but the contribution of mantle material cannot be ruled out. The magma in the source region underwent varying degrees of fractional crystallization of plagioclase, ilmenite, rutile and apatite, and was derived from a volcanic island arc environment related to subduction. |
format |
Article in Journal/Newspaper |
author |
CUI Yingchun MA Lijie LIU Chenguang WANG Qingchao LÄUFER Andreas |
author_facet |
CUI Yingchun MA Lijie LIU Chenguang WANG Qingchao LÄUFER Andreas |
author_sort |
CUI Yingchun |
title |
Petrogenesis of the Hughes Bluff granitic pluton in the Transantarctic Mountains, Antarctica |
title_short |
Petrogenesis of the Hughes Bluff granitic pluton in the Transantarctic Mountains, Antarctica |
title_full |
Petrogenesis of the Hughes Bluff granitic pluton in the Transantarctic Mountains, Antarctica |
title_fullStr |
Petrogenesis of the Hughes Bluff granitic pluton in the Transantarctic Mountains, Antarctica |
title_full_unstemmed |
Petrogenesis of the Hughes Bluff granitic pluton in the Transantarctic Mountains, Antarctica |
title_sort |
petrogenesis of the hughes bluff granitic pluton in the transantarctic mountains, antarctica |
publisher |
Institute of Geomechanics, Chinese Academy of Geological Sciences |
publishDate |
2021 |
url |
https://doi.org/10.12090/j.issn.1006-6616.2021.27.05.064 https://doaj.org/article/fc2b6161715d441aba8ee1a5eeeb8e5a |
long_lat |
ENVELOPE(165.500,165.500,-73.450,-73.450) ENVELOPE(162.200,162.200,-75.400,-75.400) |
geographic |
Transantarctic Mountains Rittmann Hughes Bluff |
geographic_facet |
Transantarctic Mountains Rittmann Hughes Bluff |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Dizhi lixue xuebao, Vol 27, Iss 5, Pp 783-795 (2021) |
op_relation |
https://journal.geomech.ac.cn//article/doi/10.12090/j.issn.1006-6616.2021.27.05.064 https://doaj.org/toc/1006-6616 1006-6616 doi:10.12090/j.issn.1006-6616.2021.27.05.064 https://doaj.org/article/fc2b6161715d441aba8ee1a5eeeb8e5a |
op_doi |
https://doi.org/10.12090/j.issn.1006-6616.2021.27.05.064 |
_version_ |
1766264507362967552 |