New bedrock map of Dome C, Antarctica, and morphostructural interpretation of the area
A new bedrock map of the Dome C area is presented, based on all radar data collected during Italian Antarctic Expeditions in 1995, 1997, 1999 and 2001. The map clearly distinguishes the Dome C plateau, along with valleys and ridges. The plateau develops at three different altimetric levels, and its...
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| Other Authors: | , , , , , , , , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
International Glaciological Society
2004
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| Subjects: | |
| Online Access: | http://hdl.handle.net/2122/4061 |
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ftingv:oai:www.earth-prints.org:2122/4061 |
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openpolar |
| institution |
Open Polar |
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Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
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ftingv |
| language |
English |
| topic |
Antarctica RES EPICA bedrock map 02. Cryosphere::02.02. Glaciers::02.02.05. Ice dynamics 02. Cryosphere::02.02. Glaciers::02.02.06. Mass balance 04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous |
| spellingShingle |
Antarctica RES EPICA bedrock map 02. Cryosphere::02.02. Glaciers::02.02.05. Ice dynamics 02. Cryosphere::02.02. Glaciers::02.02.06. Mass balance 04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous Forieri, A. Zuccoli, L. Bini, A. Zirizzotti, A. Remy, F. Tabacco, I. E. New bedrock map of Dome C, Antarctica, and morphostructural interpretation of the area |
| topic_facet |
Antarctica RES EPICA bedrock map 02. Cryosphere::02.02. Glaciers::02.02.05. Ice dynamics 02. Cryosphere::02.02. Glaciers::02.02.06. Mass balance 04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous |
| description |
A new bedrock map of the Dome C area is presented, based on all radar data collected during Italian Antarctic Expeditions in 1995, 1997, 1999 and 2001. The map clearly distinguishes the Dome C plateau, along with valleys and ridges. The plateau develops at three different altimetric levels, and its morphology is characterized by hills and closed depressions. There are no visible features which can be ascribed to glacial erosion or deposition. The major valley is 15km wide and 500m deep; its axis is parallel to that of other valleys and ridges in the plateau. The valley bottom is not flat, but contains a saddle at its centre. The morphology of the major valley may be considered a relict one which was not modified by the overlying ice cap. Two large ridges, characterized by hills, saddles and depressions, lie near the boundaries of the area. The map is used to recalculate ice thickness below the European Project for Ice Coring in Antarctica (EPICA) borehole. The new thickness is 3300 m, 50m greater than before, implying that the expected palaeoclimate record from the ice core could extend back >800 kyr. Published 321-325 3.8. Geofisica per l'ambiente JCR Journal reserved |
| author2 |
Forieri, A.; Università degli Studi di Milano, Sez. Geofisica, Via Cicognara 7, I-20129 Milan, Italy and Università degli Studi di Siena, Dip. Scienze della Terra, Via del Laterino 8, I-53100 Siena, Italy Zuccoli, L.; Università degli Studi di Milano, Sez. Geologia, Via Mangiagalli 34, I-20133 Milan, Italy Bini, A.; Università degli Studi di Milano, Sez. Geologia, Via Mangiagalli 34, I-20133 Milan, Italy Zirizzotti, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Remy, F.; Laboratoire d’Etudes en Géophysique et Océanographie Spatiales, 18 av. Edouard Belin, 31055 Toulouse Cedex, France Tabacco, I. E.; Università degli Studi di Milano, Sez. Geofisica, Via Cicognara 7, I-20129 Milan, Italy Università degli Studi di Milano, Sez. Geofisica, Via Cicognara 7, I-20129 Milan, Italy and Università degli Studi di Siena, Dip. Scienze della Terra, Via del Laterino 8, I-53100 Siena, Italy Università degli Studi di Milano, Sez. Geologia, Via Mangiagalli 34, I-20133 Milan, Italy Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Laboratoire d’Etudes en Géophysique et Océanographie Spatiales, 18 av. Edouard Belin, 31055 Toulouse Cedex, France Università degli Studi di Milano, Sez. Geofisica, Via Cicognara 7, I-20129 Milan, Italy |
| format |
Article in Journal/Newspaper |
| author |
Forieri, A. Zuccoli, L. Bini, A. Zirizzotti, A. Remy, F. Tabacco, I. E. |
| author_facet |
Forieri, A. Zuccoli, L. Bini, A. Zirizzotti, A. Remy, F. Tabacco, I. E. |
| author_sort |
Forieri, A. |
| title |
New bedrock map of Dome C, Antarctica, and morphostructural interpretation of the area |
| title_short |
New bedrock map of Dome C, Antarctica, and morphostructural interpretation of the area |
| title_full |
New bedrock map of Dome C, Antarctica, and morphostructural interpretation of the area |
| title_fullStr |
New bedrock map of Dome C, Antarctica, and morphostructural interpretation of the area |
| title_full_unstemmed |
New bedrock map of Dome C, Antarctica, and morphostructural interpretation of the area |
| title_sort |
new bedrock map of dome c, antarctica, and morphostructural interpretation of the area |
| publisher |
International Glaciological Society |
| publishDate |
2004 |
| url |
http://hdl.handle.net/2122/4061 |
| geographic |
Antarctic |
| geographic_facet |
Antarctic |
| genre |
Annals of Glaciology Antarc* Antarctic Antarctica EPICA Ice cap ice core |
| genre_facet |
Annals of Glaciology Antarc* Antarctic Antarctica EPICA Ice cap ice core |
| op_relation |
Annals of Glaciology / 39 (2004) Bogorodsky, V. V., C. R. Bentley and P. E. Gudmandsen. 1985. Radioglaciology. Dordrecht, etc., D. Reidel Publishing Co. Dalziel, I.W.D. 1999. Tectonic setting of Lake Vostok. In Bell, R. E. and D. M. Karl, eds. Lake Vostok workshop final report, 7–8 November 1998, Washington D.C. New York, Columbia University Press, 17–19. Glen, J. W. and J. G. Paren. 1975. The electrical properties of snow and ice. J. Glaciol., 15(73), 15–38. Paterson, W. S. B. 1994. The physics of glaciers. Third edition. Oxford, etc., Elsevier. Rasmussen, L. A. 1986. Refraction correction for radio echosounding of ice overlain by firn. J. Glaciol., 32(111), 192–194. Re´my, F. and I. E. Tabacco. 2000. Bedrock features and ice flow near the EPICA ice core site (Dome C, Antarctica). Geophys. Res. Lett., 27(3), 405–409. Re´my, F., P. Shaeffer and B. Legre´sy. 1999. Ice flow physical processes derived from ERS-1 high-resolution map of Antarctica and Greenland ice sheet. Geophys. J. Int., 139(3), 645–656. Retzlaff, R., N. Lord and C. R. Bentley. 1993. Airborne-radar studies: Ice Streams A, B and C, West Antarctica. J. Glaciol., 39(133), 495–506. Tabacco, I. E., A. Passerini, F. Corbelli and M. Gorman. 1998. Correspondence. Determination of the surface and bed topography at Dome C, East Antarctica. J. Glaciol., 44(146), 185–191. Tabacco, I. E., C. Bianchi, M. Chiappini, A. Passerini, A. Zirizzotti and E. Zuccheretti. 1999. Latest improvements for the echo sounding system of the Italian radar glaciological group and measurements in Antarctica. Ann. Geofis., 42(2), 271–276. Twidale, C. R. 1997. The great age of some Australian landforms: examples of, and possible explanations for, landscape longevity. In Widdowson, M., ed. Palaeosurfaces: recognition, reconstruction and palaeoenvironmental interpretation. Vol. 120. London, Geological Society Publications, 13–23. http://hdl.handle.net/2122/4061 |
| op_rights |
restricted |
| _version_ |
1766003461830213632 |
| spelling |
ftingv:oai:www.earth-prints.org:2122/4061 2023-05-15T13:29:50+02:00 New bedrock map of Dome C, Antarctica, and morphostructural interpretation of the area Forieri, A. Zuccoli, L. Bini, A. Zirizzotti, A. Remy, F. Tabacco, I. E. Forieri, A.; Università degli Studi di Milano, Sez. Geofisica, Via Cicognara 7, I-20129 Milan, Italy and Università degli Studi di Siena, Dip. Scienze della Terra, Via del Laterino 8, I-53100 Siena, Italy Zuccoli, L.; Università degli Studi di Milano, Sez. Geologia, Via Mangiagalli 34, I-20133 Milan, Italy Bini, A.; Università degli Studi di Milano, Sez. Geologia, Via Mangiagalli 34, I-20133 Milan, Italy Zirizzotti, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Remy, F.; Laboratoire d’Etudes en Géophysique et Océanographie Spatiales, 18 av. Edouard Belin, 31055 Toulouse Cedex, France Tabacco, I. E.; Università degli Studi di Milano, Sez. Geofisica, Via Cicognara 7, I-20129 Milan, Italy Università degli Studi di Milano, Sez. Geofisica, Via Cicognara 7, I-20129 Milan, Italy and Università degli Studi di Siena, Dip. Scienze della Terra, Via del Laterino 8, I-53100 Siena, Italy Università degli Studi di Milano, Sez. Geologia, Via Mangiagalli 34, I-20133 Milan, Italy Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Laboratoire d’Etudes en Géophysique et Océanographie Spatiales, 18 av. Edouard Belin, 31055 Toulouse Cedex, France Università degli Studi di Milano, Sez. Geofisica, Via Cicognara 7, I-20129 Milan, Italy 2004 http://hdl.handle.net/2122/4061 en eng International Glaciological Society Annals of Glaciology / 39 (2004) Bogorodsky, V. V., C. R. Bentley and P. E. Gudmandsen. 1985. Radioglaciology. Dordrecht, etc., D. Reidel Publishing Co. Dalziel, I.W.D. 1999. Tectonic setting of Lake Vostok. In Bell, R. E. and D. M. Karl, eds. Lake Vostok workshop final report, 7–8 November 1998, Washington D.C. New York, Columbia University Press, 17–19. Glen, J. W. and J. G. Paren. 1975. The electrical properties of snow and ice. J. Glaciol., 15(73), 15–38. Paterson, W. S. B. 1994. The physics of glaciers. Third edition. Oxford, etc., Elsevier. Rasmussen, L. A. 1986. Refraction correction for radio echosounding of ice overlain by firn. J. Glaciol., 32(111), 192–194. Re´my, F. and I. E. Tabacco. 2000. Bedrock features and ice flow near the EPICA ice core site (Dome C, Antarctica). Geophys. Res. Lett., 27(3), 405–409. Re´my, F., P. Shaeffer and B. Legre´sy. 1999. Ice flow physical processes derived from ERS-1 high-resolution map of Antarctica and Greenland ice sheet. Geophys. J. Int., 139(3), 645–656. Retzlaff, R., N. Lord and C. R. Bentley. 1993. Airborne-radar studies: Ice Streams A, B and C, West Antarctica. J. Glaciol., 39(133), 495–506. Tabacco, I. E., A. Passerini, F. Corbelli and M. Gorman. 1998. Correspondence. Determination of the surface and bed topography at Dome C, East Antarctica. J. Glaciol., 44(146), 185–191. Tabacco, I. E., C. Bianchi, M. Chiappini, A. Passerini, A. Zirizzotti and E. Zuccheretti. 1999. Latest improvements for the echo sounding system of the Italian radar glaciological group and measurements in Antarctica. Ann. Geofis., 42(2), 271–276. Twidale, C. R. 1997. The great age of some Australian landforms: examples of, and possible explanations for, landscape longevity. In Widdowson, M., ed. Palaeosurfaces: recognition, reconstruction and palaeoenvironmental interpretation. Vol. 120. London, Geological Society Publications, 13–23. http://hdl.handle.net/2122/4061 restricted Antarctica RES EPICA bedrock map 02. Cryosphere::02.02. Glaciers::02.02.05. Ice dynamics 02. Cryosphere::02.02. Glaciers::02.02.06. Mass balance 04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous article 2004 ftingv 2022-07-29T06:04:57Z A new bedrock map of the Dome C area is presented, based on all radar data collected during Italian Antarctic Expeditions in 1995, 1997, 1999 and 2001. The map clearly distinguishes the Dome C plateau, along with valleys and ridges. The plateau develops at three different altimetric levels, and its morphology is characterized by hills and closed depressions. There are no visible features which can be ascribed to glacial erosion or deposition. The major valley is 15km wide and 500m deep; its axis is parallel to that of other valleys and ridges in the plateau. The valley bottom is not flat, but contains a saddle at its centre. The morphology of the major valley may be considered a relict one which was not modified by the overlying ice cap. Two large ridges, characterized by hills, saddles and depressions, lie near the boundaries of the area. The map is used to recalculate ice thickness below the European Project for Ice Coring in Antarctica (EPICA) borehole. The new thickness is 3300 m, 50m greater than before, implying that the expected palaeoclimate record from the ice core could extend back >800 kyr. Published 321-325 3.8. Geofisica per l'ambiente JCR Journal reserved Article in Journal/Newspaper Annals of Glaciology Antarc* Antarctic Antarctica EPICA Ice cap ice core Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Antarctic |