Detrital age spectra and petrological analysis of gravel-size clasts of the Oligocene-early Miocene glaciomarine sediments of the DSDP drilling Site 270, Central Ross Sea, Antarctica

Olivetti, Valerio; Balestrieri, Maria Laura; Chew, David; Zurli, Luca; Zattin, Massimiliano; Pace, Donato; Drakou, Foteini; Cornamusini, Gianluca; Perotti, Matteo;

2023 || GFZ Data Services

This data-set contains provenance detrital data from the glacimarine sequence of Deep Sea Drilling Project Site 270. The 270 site was cored on a flank of the Central High in the central Ross Sea and recovered a thick Oligocene to lower Miocene glacimarine sequence, overlain by ~20 m of Pliocene to Recent strata. This site provides important temporal constraints on regional stratigraphy and insights into late Oligocene to early Miocene ice sheet dynamics. We analyzed eight detrital samples of glaciomarine sediments distributed along the core and two from the basement rocks recovered during coring, by using an integrated single-grain provenance approach. This multi-proxy provenance study employs conventional U-Pb detrital zircon dating integrated with apatite U-Pb and fission-track dating and trace element analysis of detrital apatite and clast petrology. The data-set suggests a general evolution from local erosion due to small ice caps to far-travelled glacial detritus responding to the continuous sea floor subsidence. The detrital age spectra of a late Oligocene diamicitite is consistent with far travelled grains from southern West Antarctica (WA), suggesting an expansion of the WA ice sheet that should be the oldest and first evidence of ice sheet growth on the WA.

Originally assigned keywords

Corresponding MSL vocabulary keywords

MSL enriched keywords

MSL enriched sub domains
  • geochemistry
Source http://dx.doi.org/10.5880/fidgeo.2022.040
Source publisher GFZ Data Services
DOI 10.5880/fidgeo.2022.040
Authors
  • Olivetti, Valerio
  • 0000-0001-8173-3860
  • Department of Geosciences, University of Padova, Padua, Italy;
  • Balestrieri, Maria Laura
  • 0000-0002-8652-0845
  • CNR, Institute of Geoscience and Earth Resources;
  • Chew, David
  • 0000-0002-6940-1035
  • Department of Geology, Trinity College Dublin, University of Dublin, Ireland;
  • Zurli, Luca
  • 0000-0002-7669-7305
  • Department of Physical, Earth and Environmental Sciences, University of Siena, Siena;
  • Zattin, Massimiliano
  • 0000-0002-2265-3921
  • Department of Geosciences, University of Padova, Padua, Italy;
  • Pace, Donato
  • Department of Physical, Earth and Environmental Sciences, University of Siena, Siena;
  • Drakou, Foteini
  • 0000-0001-6618-4541
  • Department of Geology, Trinity College Dublin, University of Dublin, Ireland;
  • Cornamusini, Gianluca
  • Department of Physical, Earth and Environmental Sciences, University of Siena, Siena;
  • Perotti, Matteo
  • 0000-0003-4713-7867
  • Department of Physical, Earth and Environmental Sciences, University of Siena, Siena;
Contributors
  • Olivetti, Valerio
  • ContactPerson
  • 0000-0001-8173-3860
  • Department of Geosciences, University of Padova, Padua, Italy;
  • Olivetti, Valerio
  • DataCollector
  • 0000-0001-8173-3860
  • Department of Geosciences, University of Padova, Padua, Italy;
  • Balestrieri, Maria Laura
  • ContactPerson
  • 0000-0002-8652-0845
  • CNR, Institute of Geoscience and Earth Resources;
  • Balestrieri, Maria Laura
  • DataCollector
  • 0000-0002-8652-0845
  • CNR, Institute of Geoscience and Earth Resources;
  • Perotti, Matteo
  • ProjectLeader
  • 0000-0003-4713-7867
  • Department of Physical, Earth and Environmental Sciences, University of Siena, Siena;
  • Balestrieri, Maria Laura
  • ContactPerson
  • CNR, Institute of Geoscience and Earth Resources;
References
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  • 10.1016/j.gloplacha.2023.104042
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  • Zurli, L., Perotti, M., & Talarico, F. M. (2022). Data report: petrology of gravel-sized clasts from Site U1521 core, IODP Expedition 374, Ross Sea West Antarctic Ice Sheet History. Proceedings of the International Ocean Discovery Program. Internet Archive. https://doi.org/10.14379/iodp.proc.374.201.2022
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Contact
  • Balestrieri, Maria Laura
  • CNR, Institute of Geoscience and Earth Resources;
  • Balestrieri, Maria Laura
  • CNR, Institute of Geoscience and Earth Resources;
  • Balestrieri, Maria Laura
  • CNR, Institute of Geoscience and Earth Resources;
Citation Olivetti, V., Balestrieri, M. L., Chew, D., Zurli, L., Zattin, M., Pace, D., Drakou, F., Cornamusini, G., & Perotti, M. (2023). Detrital age spectra and petrological analysis of gravel-size clasts of the Oligocene-early Miocene glaciomarine sediments of the DSDP drilling Site 270, Central Ross Sea, Antarctica [Data set]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.2022.040
Geo location(s)
  • Ross Sea, Antarctica
Spatial coordinates
  • eLong -157.5
  • nLat -75.6722
  • sLat -81.2014
  • wLong 174.375