Detrital age spectra of the middle Miocene to Present day glaciomarine sediments of the DSDP Leg 28 drilling sites 271, 272 Central Ross Sea, Antarctica

Cite as:

Balestrieri, Maria Laura; Olivetti, Valerio; Chew, David; Zurli, Luca; Zattin, Massimiliano; Drakou, Foteini; Cornamusini, Gianluca; Perotti, Matteo (2023): Detrital age spectra of the middle Miocene to Present day glaciomarine sediments of the DSDP Leg 28 drilling sites 271, 272 Central Ross Sea, Antarctica. GFZ Data Services. https://doi.org/10.5880/fidgeo.2023.025

Status

I N R E V I E W : Balestrieri, Maria Laura; Olivetti, Valerio; Chew, David; Zurli, Luca; Zattin, Massimiliano; Drakou, Foteini; Cornamusini, Gianluca; Perotti, Matteo (2023): Detrital age spectra of the middle Miocene to Present day glaciomarine sediments of the DSDP Leg 28 drilling sites 271, 272 Central Ross Sea, Antarctica. GFZ Data Services. https://doi.org/10.5880/fidgeo.2023.025

Abstract

This dataset contains provenance detrital data from the glacimarine sequence of Deep Sea Drilling Project Leg 28, Site 271 e 272. The two boreholes are located in the middle of the Ross Sea, in a key site close at 180° longitude that is considered the present confluence between ice flows fed by West Antarctica and East Antarctica. These two sites, together, provide insights to Middle Miocene to Present ice sheet dynamics.
We analyzed eight detrital samples of glaciomarine sediments, four from 272 drill core and 4 from 271. We used an integrated single-grain provenance approach (Olivetti et al., 2023). 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.
The dataset suggests a recurrent E - W oscillations of the ice flow divide between ice fed by West and East Antarctica ice sheets, respectively.

Authors

Balestrieri, Maria Laura;C.N.R., Istituto di Geoscienze e Georisorse
Olivetti, Valerio;Department of Geosciences, University of Padova, Padua, Italy
Chew, David;Department of Geology, Trinity College Dublin, University of Dublin, Ireland
Zurli, Luca;Department of Physical, Earth and Environmental Sciences, University of Siena, Siena
Zattin, Massimiliano;Department of Geosciences, University of Padova, Padua, Italy
Drakou, Foteini;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;Department of Physical, Earth and Environmental Sciences, University of Siena, Siena

Contact

Balestrieri, Maria Laura (Senior Researcher) ; C.N.R., Istituto di Geoscienze e Georisorse; ➦

Keywords

Provenance analysis, Apatite and zircon U-Pb dating, Apatite fission-track dating, Antarctica, Ice-sheet evolution, compound material > sedimentary material, geological process > sedimentation (geology), Phanerozoic > Cenozoic > Neogene, Phanerozoic > Cenozoic > Quaternary