Geological Age Data of the Ross Orogeny in the Terra Nova Intrusive Complex, Northern Victoria Land, Antarctica
This study aims to establish the timing of the formation of the Terra Nova Intrusive Complex (TNIC), located in Terra Nova Bay, northern Victoria Land, Antarctica. The TNIC is paleogeographically situated inland of the Wilson Terrane of northern Victoria Land and was formed during the Paleozoic Ross...
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GeoAI Data Society
2025-03-01
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| Online Access: | http://geodata.kr/upload/pdf/GD-2025-0001.pdf |
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| author | Sang-Bong Yi Mi Jung Lee |
| author_facet | Sang-Bong Yi Mi Jung Lee |
| author_sort | Sang-Bong Yi |
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| description | This study aims to establish the timing of the formation of the Terra Nova Intrusive Complex (TNIC), located in Terra Nova Bay, northern Victoria Land, Antarctica. The TNIC is paleogeographically situated inland of the Wilson Terrane of northern Victoria Land and was formed during the Paleozoic Ross Orogeny. This study obtained and compiled sensitive high-resolution ion microprobe zircon U-Pb ages for five intrusive bodies in the south-central part of the TNIC. The results clarify the formation age (about 530-470 Ma) of the TNIC and the interrelationships among the various intrusive units, especially those in the south-central region. The Confusion Intrusive Unit was emplaced at 520-515 Ma. The Russell Gabbro intruded into the Confusion Intrusive Unit at 501±3 Ma. Approximately at the same time (about 500 Ma), the Vegetation Intrusive Unit formed, followed by the Abbott Intrusive Unit at about 485 Ma. These findings provide valuable data for interpreting the geological development of the Antarctic Continent and the evolutionary history of the Ross Orogeny. |
| format | Article |
| id | doaj-art-7ea022dd3ece4fe69834c4088bb668d1 |
| institution | OA Journals |
| issn | 2713-5004 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | GeoAI Data Society |
| record_format | Article |
| series | Geo Data |
| spelling | doaj-art-7ea022dd3ece4fe69834c4088bb668d12025-08-20T01:55:09ZengGeoAI Data SocietyGeo Data2713-50042025-03-01711810.22761/GD.2025.0001179Geological Age Data of the Ross Orogeny in the Terra Nova Intrusive Complex, Northern Victoria Land, AntarcticaSang-Bong Yi0Mi Jung Lee1Assistant Professor, Department of Earth and Environmental Sciences, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, 54896 Jeonbuk-do, South KoreaPrincipal Researcher, Division of Glacier & Earth Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, 21990 Incheon, South KoreaThis study aims to establish the timing of the formation of the Terra Nova Intrusive Complex (TNIC), located in Terra Nova Bay, northern Victoria Land, Antarctica. The TNIC is paleogeographically situated inland of the Wilson Terrane of northern Victoria Land and was formed during the Paleozoic Ross Orogeny. This study obtained and compiled sensitive high-resolution ion microprobe zircon U-Pb ages for five intrusive bodies in the south-central part of the TNIC. The results clarify the formation age (about 530-470 Ma) of the TNIC and the interrelationships among the various intrusive units, especially those in the south-central region. The Confusion Intrusive Unit was emplaced at 520-515 Ma. The Russell Gabbro intruded into the Confusion Intrusive Unit at 501±3 Ma. Approximately at the same time (about 500 Ma), the Vegetation Intrusive Unit formed, followed by the Abbott Intrusive Unit at about 485 Ma. These findings provide valuable data for interpreting the geological development of the Antarctic Continent and the evolutionary history of the Ross Orogeny.http://geodata.kr/upload/pdf/GD-2025-0001.pdfantarcticanorthern victoria landross orogenyterra nova intrusive complexzircon u-pb age |
| spellingShingle | Sang-Bong Yi Mi Jung Lee Geological Age Data of the Ross Orogeny in the Terra Nova Intrusive Complex, Northern Victoria Land, Antarctica Geo Data antarctica northern victoria land ross orogeny terra nova intrusive complex zircon u-pb age |
| title | Geological Age Data of the Ross Orogeny in the Terra Nova Intrusive Complex, Northern Victoria Land, Antarctica |
| title_full | Geological Age Data of the Ross Orogeny in the Terra Nova Intrusive Complex, Northern Victoria Land, Antarctica |
| title_fullStr | Geological Age Data of the Ross Orogeny in the Terra Nova Intrusive Complex, Northern Victoria Land, Antarctica |
| title_full_unstemmed | Geological Age Data of the Ross Orogeny in the Terra Nova Intrusive Complex, Northern Victoria Land, Antarctica |
| title_short | Geological Age Data of the Ross Orogeny in the Terra Nova Intrusive Complex, Northern Victoria Land, Antarctica |
| title_sort | geological age data of the ross orogeny in the terra nova intrusive complex northern victoria land antarctica |
| topic | antarctica northern victoria land ross orogeny terra nova intrusive complex zircon u-pb age |
| url | http://geodata.kr/upload/pdf/GD-2025-0001.pdf |
| work_keys_str_mv | AT sangbongyi geologicalagedataoftherossorogenyintheterranovaintrusivecomplexnorthernvictorialandantarctica AT mijunglee geologicalagedataoftherossorogenyintheterranovaintrusivecomplexnorthernvictorialandantarctica |