Lithostratigraphy of volcanic and sedimentary sequences in central Livingston Island, South Shetland Islands
Livingston Island contains several, distinctive sedimentary and volcanic sequences, which document the history and evolution of an important part of the South Shetland Islands magmatic arc. The turbiditic, late Palaeozoic–early Mesozoic Miers Bluff Formation (MBF) is divided into the Johnsons Dock a...
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Cambridge University Press (CUP)
1995
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crcambridgeupr:10.1017/s0954102095000137 2024-09-15T17:48:39+00:00 Lithostratigraphy of volcanic and sedimentary sequences in central Livingston Island, South Shetland Islands Smellie, J.L. Liesa, M. Muñoz, J.A. Sàbat, F. Pallàs, R. Willan, R.C.R. 1995 http://dx.doi.org/10.1017/s0954102095000137 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102095000137 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 7, issue 1, page 99-113 ISSN 0954-1020 1365-2079 journal-article 1995 crcambridgeupr https://doi.org/10.1017/s0954102095000137 2024-07-31T04:02:45Z Livingston Island contains several, distinctive sedimentary and volcanic sequences, which document the history and evolution of an important part of the South Shetland Islands magmatic arc. The turbiditic, late Palaeozoic–early Mesozoic Miers Bluff Formation (MBF) is divided into the Johnsons Dock and Napier Peak members, which may represent sedimentation in upper and lower mid-fan settings, respectively, prior to pre-late Jurassic polyphase deformation (dominated by open folding). The Moores Peak breccias are formed largely of coarse clasts reworked from the MBF. The breccias may be part of the MBF, a separate unit, or part of the Mount Bowles Formation. The structural position is similar to the terrigenous Lower Jurassic Botany Bay Group in the northern Antarctic Peninsula, but the precise stratigraphical relationships and age are unknown. The (?) Cretaceous Mount Bowles Formation is largely volcanic. Detritus in the volcaniclastic rocks was formed mainly during phreatomagmatic eruptions and redeposited by debris flows (lahars), whereas rare sandstone interbeds are arkosic and reflect a local provenance rooted in the MBF. The Pleistocene–Recent Inott Point Formation is dominated by multiple, basaltic tuff cone relicts in which distinctive vent and flank sequences are recognized. The geographical distribution of the Edinburgh Hill Formation is closely associated with faults, which may have been reactivated as dip-slip structures during Late Cenozoic extension (arc splitting). Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Livingston Island South Shetland Islands Cambridge University Press Antarctic Science 7 1 99 113 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
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English |
description |
Livingston Island contains several, distinctive sedimentary and volcanic sequences, which document the history and evolution of an important part of the South Shetland Islands magmatic arc. The turbiditic, late Palaeozoic–early Mesozoic Miers Bluff Formation (MBF) is divided into the Johnsons Dock and Napier Peak members, which may represent sedimentation in upper and lower mid-fan settings, respectively, prior to pre-late Jurassic polyphase deformation (dominated by open folding). The Moores Peak breccias are formed largely of coarse clasts reworked from the MBF. The breccias may be part of the MBF, a separate unit, or part of the Mount Bowles Formation. The structural position is similar to the terrigenous Lower Jurassic Botany Bay Group in the northern Antarctic Peninsula, but the precise stratigraphical relationships and age are unknown. The (?) Cretaceous Mount Bowles Formation is largely volcanic. Detritus in the volcaniclastic rocks was formed mainly during phreatomagmatic eruptions and redeposited by debris flows (lahars), whereas rare sandstone interbeds are arkosic and reflect a local provenance rooted in the MBF. The Pleistocene–Recent Inott Point Formation is dominated by multiple, basaltic tuff cone relicts in which distinctive vent and flank sequences are recognized. The geographical distribution of the Edinburgh Hill Formation is closely associated with faults, which may have been reactivated as dip-slip structures during Late Cenozoic extension (arc splitting). |
format |
Article in Journal/Newspaper |
author |
Smellie, J.L. Liesa, M. Muñoz, J.A. Sàbat, F. Pallàs, R. Willan, R.C.R. |
spellingShingle |
Smellie, J.L. Liesa, M. Muñoz, J.A. Sàbat, F. Pallàs, R. Willan, R.C.R. Lithostratigraphy of volcanic and sedimentary sequences in central Livingston Island, South Shetland Islands |
author_facet |
Smellie, J.L. Liesa, M. Muñoz, J.A. Sàbat, F. Pallàs, R. Willan, R.C.R. |
author_sort |
Smellie, J.L. |
title |
Lithostratigraphy of volcanic and sedimentary sequences in central Livingston Island, South Shetland Islands |
title_short |
Lithostratigraphy of volcanic and sedimentary sequences in central Livingston Island, South Shetland Islands |
title_full |
Lithostratigraphy of volcanic and sedimentary sequences in central Livingston Island, South Shetland Islands |
title_fullStr |
Lithostratigraphy of volcanic and sedimentary sequences in central Livingston Island, South Shetland Islands |
title_full_unstemmed |
Lithostratigraphy of volcanic and sedimentary sequences in central Livingston Island, South Shetland Islands |
title_sort |
lithostratigraphy of volcanic and sedimentary sequences in central livingston island, south shetland islands |
publisher |
Cambridge University Press (CUP) |
publishDate |
1995 |
url |
http://dx.doi.org/10.1017/s0954102095000137 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102095000137 |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Livingston Island South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Livingston Island South Shetland Islands |
op_source |
Antarctic Science volume 7, issue 1, page 99-113 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102095000137 |
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Antarctic Science |
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7 |
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1 |
container_start_page |
99 |
op_container_end_page |
113 |
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1810290113786150912 |