Middle Cambrian slope deposits in northern Victoria Land, Antarctica: Fingerprinting small carbonate platforms dominated by grainy carbonates and microbial reefs
Carbonate-bearing slope strata are reported from the upper Miaolingian-lower Furongian Spurs Formation in northern Victoria Land, Antarctica, deposited in a backarc basin during the Ross Orogeny. The Spurs Formation consists mainly of shale interbedded with conglomerate and sandstone. It overlies th...
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International Union of Geological Sciences
2021
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Online Access: | https://hdl.handle.net/10371/194630 https://doi.org/10.18814/epiiugs/2020/020090 |
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ftseoulnuniv:oai:s-space.snu.ac.kr:10371/194630 2023-12-03T10:13:40+01:00 Middle Cambrian slope deposits in northern Victoria Land, Antarctica: Fingerprinting small carbonate platforms dominated by grainy carbonates and microbial reefs Hong, Jongsun Woo, Jusun Park, Tae-Yoon S. Kihm, Ji-Hoon Kim, Young-Hwan G. Lee, Hee-Kwon Woo, Jusun 2021-09-29 https://hdl.handle.net/10371/194630 https://doi.org/10.18814/epiiugs/2020/020090 영어 unknown International Union of Geological Sciences Episodes, Vol.44 No.3, pp.299-315 0705-3797 https://hdl.handle.net/10371/194630 doi:10.18814/epiiugs/2020/020090 000697529800001 2-s2.0-85115009703 142848 SEQUENCE STRATIGRAPHY LOWER ORDOVICIAN LANTERMAN RANGE TRANSANTARCTIC MOUNTAINS WESTERN NEWFOUNDLAND INTRASHELF BASIN SHADY DOLOMITE DENSITY FLOWS EVOLUTION TRANSITION Article ART 2021 ftseoulnuniv https://doi.org/10.18814/epiiugs/2020/020090 2023-11-03T01:38:35Z Carbonate-bearing slope strata are reported from the upper Miaolingian-lower Furongian Spurs Formation in northern Victoria Land, Antarctica, deposited in a backarc basin during the Ross Orogeny. The Spurs Formation consists mainly of shale interbedded with conglomerate and sandstone. It overlies the middle Miaolingian Glasgow Volcanics and volcaniclastic Molar Formation and is overlain by the lower Furongian sandstone-dominated Eureka Formation. The Spurs conglomerate is composed of randomly-oriented, granule- to boulder-sized, polymictic clasts of shale, sandstone and various limestone. These limestone clasts are variable in texture, such as microbial boundstone composed of calcimicrobe Epiphyton and subordinate microbial crust, oolitic-peloidal packstone to grainstone, and minor lime mudstone to wackestone. These are collectively interpreted as slope deposits, in which limestone clasts may have been derived from missing platform margin carbonate, analogous to Cambrian to Lower Ordovician slope successions elsewhere. On the other hand, the rarity of thinly bedded micritic limestones in the Spurs slope successions is markedly distinctive, and possibly reflects subdued production of lime muds behind the platform edge. It suggests that the vanished carbonate platform may have formed within a narrow shelf margin, dominated by coarse-grained carbonate and microbial reefs. Such style of carbonate platforms would contribute to understand how syn-orogenic carbonates initiated and developed in back-arc basins along the pacific margin of Gondwana (i.e., southern Australia and New Zealand). Y 1 Article in Journal/Newspaper Antarc* Antarctica Newfoundland Victoria Land Seoul National University: S-Space Victoria Land Transantarctic Mountains Pacific New Zealand Eureka ENVELOPE(-85.940,-85.940,79.990,79.990) Lanterman Range ENVELOPE(163.167,163.167,-71.667,-71.667) Episodes 44 3 299 315 |
institution |
Open Polar |
collection |
Seoul National University: S-Space |
op_collection_id |
ftseoulnuniv |
language |
unknown |
topic |
SEQUENCE STRATIGRAPHY LOWER ORDOVICIAN LANTERMAN RANGE TRANSANTARCTIC MOUNTAINS WESTERN NEWFOUNDLAND INTRASHELF BASIN SHADY DOLOMITE DENSITY FLOWS EVOLUTION TRANSITION |
spellingShingle |
SEQUENCE STRATIGRAPHY LOWER ORDOVICIAN LANTERMAN RANGE TRANSANTARCTIC MOUNTAINS WESTERN NEWFOUNDLAND INTRASHELF BASIN SHADY DOLOMITE DENSITY FLOWS EVOLUTION TRANSITION Hong, Jongsun Woo, Jusun Park, Tae-Yoon S. Kihm, Ji-Hoon Kim, Young-Hwan G. Lee, Hee-Kwon Middle Cambrian slope deposits in northern Victoria Land, Antarctica: Fingerprinting small carbonate platforms dominated by grainy carbonates and microbial reefs |
topic_facet |
SEQUENCE STRATIGRAPHY LOWER ORDOVICIAN LANTERMAN RANGE TRANSANTARCTIC MOUNTAINS WESTERN NEWFOUNDLAND INTRASHELF BASIN SHADY DOLOMITE DENSITY FLOWS EVOLUTION TRANSITION |
description |
Carbonate-bearing slope strata are reported from the upper Miaolingian-lower Furongian Spurs Formation in northern Victoria Land, Antarctica, deposited in a backarc basin during the Ross Orogeny. The Spurs Formation consists mainly of shale interbedded with conglomerate and sandstone. It overlies the middle Miaolingian Glasgow Volcanics and volcaniclastic Molar Formation and is overlain by the lower Furongian sandstone-dominated Eureka Formation. The Spurs conglomerate is composed of randomly-oriented, granule- to boulder-sized, polymictic clasts of shale, sandstone and various limestone. These limestone clasts are variable in texture, such as microbial boundstone composed of calcimicrobe Epiphyton and subordinate microbial crust, oolitic-peloidal packstone to grainstone, and minor lime mudstone to wackestone. These are collectively interpreted as slope deposits, in which limestone clasts may have been derived from missing platform margin carbonate, analogous to Cambrian to Lower Ordovician slope successions elsewhere. On the other hand, the rarity of thinly bedded micritic limestones in the Spurs slope successions is markedly distinctive, and possibly reflects subdued production of lime muds behind the platform edge. It suggests that the vanished carbonate platform may have formed within a narrow shelf margin, dominated by coarse-grained carbonate and microbial reefs. Such style of carbonate platforms would contribute to understand how syn-orogenic carbonates initiated and developed in back-arc basins along the pacific margin of Gondwana (i.e., southern Australia and New Zealand). Y 1 |
author2 |
Woo, Jusun |
format |
Article in Journal/Newspaper |
author |
Hong, Jongsun Woo, Jusun Park, Tae-Yoon S. Kihm, Ji-Hoon Kim, Young-Hwan G. Lee, Hee-Kwon |
author_facet |
Hong, Jongsun Woo, Jusun Park, Tae-Yoon S. Kihm, Ji-Hoon Kim, Young-Hwan G. Lee, Hee-Kwon |
author_sort |
Hong, Jongsun |
title |
Middle Cambrian slope deposits in northern Victoria Land, Antarctica: Fingerprinting small carbonate platforms dominated by grainy carbonates and microbial reefs |
title_short |
Middle Cambrian slope deposits in northern Victoria Land, Antarctica: Fingerprinting small carbonate platforms dominated by grainy carbonates and microbial reefs |
title_full |
Middle Cambrian slope deposits in northern Victoria Land, Antarctica: Fingerprinting small carbonate platforms dominated by grainy carbonates and microbial reefs |
title_fullStr |
Middle Cambrian slope deposits in northern Victoria Land, Antarctica: Fingerprinting small carbonate platforms dominated by grainy carbonates and microbial reefs |
title_full_unstemmed |
Middle Cambrian slope deposits in northern Victoria Land, Antarctica: Fingerprinting small carbonate platforms dominated by grainy carbonates and microbial reefs |
title_sort |
middle cambrian slope deposits in northern victoria land, antarctica: fingerprinting small carbonate platforms dominated by grainy carbonates and microbial reefs |
publisher |
International Union of Geological Sciences |
publishDate |
2021 |
url |
https://hdl.handle.net/10371/194630 https://doi.org/10.18814/epiiugs/2020/020090 |
long_lat |
ENVELOPE(-85.940,-85.940,79.990,79.990) ENVELOPE(163.167,163.167,-71.667,-71.667) |
geographic |
Victoria Land Transantarctic Mountains Pacific New Zealand Eureka Lanterman Range |
geographic_facet |
Victoria Land Transantarctic Mountains Pacific New Zealand Eureka Lanterman Range |
genre |
Antarc* Antarctica Newfoundland Victoria Land |
genre_facet |
Antarc* Antarctica Newfoundland Victoria Land |
op_relation |
Episodes, Vol.44 No.3, pp.299-315 0705-3797 https://hdl.handle.net/10371/194630 doi:10.18814/epiiugs/2020/020090 000697529800001 2-s2.0-85115009703 142848 |
op_doi |
https://doi.org/10.18814/epiiugs/2020/020090 |
container_title |
Episodes |
container_volume |
44 |
container_issue |
3 |
container_start_page |
299 |
op_container_end_page |
315 |
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1784260516525375488 |