Sedimentation and aspects of glacial dynamics from physical properties, mineralogy and magnetic properties at ODP Sites 1166 and 1167, Prydz Bay, Antarctica
Trough mouth fans are formed by aggradation of glacial debris flows from sediment deposited by fast flowing ice streams extending to the shelf edge. We here investigate the two sites, ODP Site 1166 on the shelf and Site 1167 drilled on the Prydz Channel Fan in order to contribute to the understandin...
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ftingv:oai:www.earth-prints.org:2122/2956 2023-05-15T13:51:39+02:00 Sedimentation and aspects of glacial dynamics from physical properties, mineralogy and magnetic properties at ODP Sites 1166 and 1167, Prydz Bay, Antarctica Forsberg, C. F. Florindo, F. Grützner, J. Venuti, A. Solheim, A. Forsberg, C. F.; Norwegian Geotechnical Institute, P.O.Box 3930 Ullevaal Stadion, N-0806 Oslo, NORWAY Florindo, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Grützner, J.; University of Bremen, 28334, Bremen, Germany Venuti, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Solheim, A.; Norwegian Geotechnical Institute, P.O.Box 3930 Ullevaal Stadion, N-0806 Oslo, NORWAY Norwegian Geotechnical Institute, P.O.Box 3930 Ullevaal Stadion, N-0806 Oslo, NORWAY Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia University of Bremen, 28334, Bremen, Germany 2007 http://hdl.handle.net/2122/2956 en eng Palaeogeography, Palaeoclimatology, Palaeoecology http://hdl.handle.net/2122/2956 restricted Neogene Prydz Bay 04. Solid Earth::04.05. Geomagnetism::04.05.06. Paleomagnetism manuscript 2007 ftingv 2022-07-29T06:04:38Z Trough mouth fans are formed by aggradation of glacial debris flows from sediment deposited by fast flowing ice streams extending to the shelf edge. We here investigate the two sites, ODP Site 1166 on the shelf and Site 1167 drilled on the Prydz Channel Fan in order to contribute to the understanding of Neogene ice flow patterns in Prydz Bay. The mineralogy, sand content, physical and magnetic properties were analysed. The mineralogy of Neogene strata at Site 1166 can be correlated to nearby ODP Site 742 drilled during Leg 119. Moreover an increase in the shear strength of the sediments (Leg 119 load event 3) is found both at Site 1166 and Site 742. This load event probably indicates that the oldest glacial configuration involved thicker glaciers than the later ones. The results from Site 1167 show that there has been a significant change in the provenance of the sediments during the past 2 million years. The greatest change occurred at about 1.13 Ma and implies a shift in the glacial configuration in Prydz Bay with a greater contribution of material from western parts of the drainage basin during the deposition of Unit II (217 – 435 mbsf) at Site 1167 on the Prydz Channel Fan. In press 2.2. Laboratorio di paleomagnetismo JCR Journal reserved Manuscript Antarc* Antarctica Prydz Bay Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Prydz Bay Prydz Channel ENVELOPE(73.000,73.000,-67.000,-67.000) |
institution |
Open Polar |
collection |
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftingv |
language |
English |
topic |
Neogene Prydz Bay 04. Solid Earth::04.05. Geomagnetism::04.05.06. Paleomagnetism |
spellingShingle |
Neogene Prydz Bay 04. Solid Earth::04.05. Geomagnetism::04.05.06. Paleomagnetism Forsberg, C. F. Florindo, F. Grützner, J. Venuti, A. Solheim, A. Sedimentation and aspects of glacial dynamics from physical properties, mineralogy and magnetic properties at ODP Sites 1166 and 1167, Prydz Bay, Antarctica |
topic_facet |
Neogene Prydz Bay 04. Solid Earth::04.05. Geomagnetism::04.05.06. Paleomagnetism |
description |
Trough mouth fans are formed by aggradation of glacial debris flows from sediment deposited by fast flowing ice streams extending to the shelf edge. We here investigate the two sites, ODP Site 1166 on the shelf and Site 1167 drilled on the Prydz Channel Fan in order to contribute to the understanding of Neogene ice flow patterns in Prydz Bay. The mineralogy, sand content, physical and magnetic properties were analysed. The mineralogy of Neogene strata at Site 1166 can be correlated to nearby ODP Site 742 drilled during Leg 119. Moreover an increase in the shear strength of the sediments (Leg 119 load event 3) is found both at Site 1166 and Site 742. This load event probably indicates that the oldest glacial configuration involved thicker glaciers than the later ones. The results from Site 1167 show that there has been a significant change in the provenance of the sediments during the past 2 million years. The greatest change occurred at about 1.13 Ma and implies a shift in the glacial configuration in Prydz Bay with a greater contribution of material from western parts of the drainage basin during the deposition of Unit II (217 – 435 mbsf) at Site 1167 on the Prydz Channel Fan. In press 2.2. Laboratorio di paleomagnetismo JCR Journal reserved |
author2 |
Forsberg, C. F.; Norwegian Geotechnical Institute, P.O.Box 3930 Ullevaal Stadion, N-0806 Oslo, NORWAY Florindo, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Grützner, J.; University of Bremen, 28334, Bremen, Germany Venuti, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Solheim, A.; Norwegian Geotechnical Institute, P.O.Box 3930 Ullevaal Stadion, N-0806 Oslo, NORWAY Norwegian Geotechnical Institute, P.O.Box 3930 Ullevaal Stadion, N-0806 Oslo, NORWAY Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia University of Bremen, 28334, Bremen, Germany |
format |
Manuscript |
author |
Forsberg, C. F. Florindo, F. Grützner, J. Venuti, A. Solheim, A. |
author_facet |
Forsberg, C. F. Florindo, F. Grützner, J. Venuti, A. Solheim, A. |
author_sort |
Forsberg, C. F. |
title |
Sedimentation and aspects of glacial dynamics from physical properties, mineralogy and magnetic properties at ODP Sites 1166 and 1167, Prydz Bay, Antarctica |
title_short |
Sedimentation and aspects of glacial dynamics from physical properties, mineralogy and magnetic properties at ODP Sites 1166 and 1167, Prydz Bay, Antarctica |
title_full |
Sedimentation and aspects of glacial dynamics from physical properties, mineralogy and magnetic properties at ODP Sites 1166 and 1167, Prydz Bay, Antarctica |
title_fullStr |
Sedimentation and aspects of glacial dynamics from physical properties, mineralogy and magnetic properties at ODP Sites 1166 and 1167, Prydz Bay, Antarctica |
title_full_unstemmed |
Sedimentation and aspects of glacial dynamics from physical properties, mineralogy and magnetic properties at ODP Sites 1166 and 1167, Prydz Bay, Antarctica |
title_sort |
sedimentation and aspects of glacial dynamics from physical properties, mineralogy and magnetic properties at odp sites 1166 and 1167, prydz bay, antarctica |
publishDate |
2007 |
url |
http://hdl.handle.net/2122/2956 |
long_lat |
ENVELOPE(73.000,73.000,-67.000,-67.000) |
geographic |
Prydz Bay Prydz Channel |
geographic_facet |
Prydz Bay Prydz Channel |
genre |
Antarc* Antarctica Prydz Bay |
genre_facet |
Antarc* Antarctica Prydz Bay |
op_relation |
Palaeogeography, Palaeoclimatology, Palaeoecology http://hdl.handle.net/2122/2956 |
op_rights |
restricted |
_version_ |
1766255648081707008 |