2026-07-06T16:01:13Zhttp://doidb.wdc-terra.org/oaip/oai

oai:doidb.wdc-terra.org:76802026-06-10T10:22:36ZDOIDBDOIDB.FID

false4DOIDB.FID 10.5880/fidgeo.2022.040 Olivetti, Valerio Valerio Olivetti 0000-0001-8173-3860 Department of Geosciences, University of Padova, Padua, Italy Balestrieri, Maria Laura Maria Laura Balestrieri 0000-0002-8652-0845 CNR, Institute of Geoscience and Earth Resources Chew, David David Chew 0000-0002-6940-1035 Department of Geology, Trinity College Dublin, University of Dublin, Ireland Zurli, Luca Luca Zurli 0000-0002-7669-7305 Department of Physical, Earth and Environmental Sciences, University of Siena, Siena Zattin, Massimiliano Massimiliano Zattin 0000-0002-2265-3921 Department of Geosciences, University of Padova, Padua, Italy Pace, Donato Donato Pace Department of Physical, Earth and Environmental Sciences, University of Siena, Siena Drakou, Foteini Foteini Drakou 0000-0001-6618-4541 Department of Geology, Trinity College Dublin, University of Dublin, Ireland Cornamusini, Gianluca Gianluca Cornamusini Department of Physical, Earth and Environmental Sciences, University of Siena, Siena Perotti, Matteo Matteo Perotti 0000-0003-4713-7867 Department of Physical, Earth and Environmental Sciences, University of Siena, Siena GFZ Data Services 2023 Provenance analysis Apatite and zircon U-Pb dating Antarctica Ice Sheet evolution compound material > rock compound material > sedimentary material EARTH SCIENCE EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > ISOTOPIC AGE In Situ/Laboratory Instruments Models/Analyses Phanerozoic > Cenozoic > Neogene Olivetti, Valerio Valerio Olivetti 0000-0001-8173-3860 Department of Geosciences, University of Padova, Padua, Italy Olivetti, Valerio Valerio Olivetti 0000-0001-8173-3860 Department of Geosciences, University of Padova, Padua, Italy Balestrieri, Maria Laura Maria Laura Balestrieri 0000-0002-8652-0845 CNR, Institute of Geoscience and Earth Resources Balestrieri, Maria Laura Maria Laura Balestrieri 0000-0002-8652-0845 CNR, Institute of Geoscience and Earth Resources Perotti, Matteo Matteo Perotti 0000-0003-4713-7867 Department of Physical, Earth and Environmental Sciences, University of Siena, Siena Balestrieri, Maria Laura CNR, Institute of Geoscience and Earth Resources 2022-12-20 Dataset 10.1016/j.gloplacha.2023.104042 10.1016/j.chemgeo.2010.11.010 10.1016/j.chemgeo.2013.11.006 10.1016/j.earscirev.2019.103044 10.1039/c1ja10172b 10.1111/j.1751-908X.2012.00158.x 10.1016/0012-821X(75)90088-6 10.14379/iodp.proc.374.201.2022 CC BY 4.0 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.

Ross Sea, Antarctica -157.5 174.375 -81.2014 -75.6722 Programma Nazionale di Ricerche in Antartide (Grant number PNRA18_00233) Science Foundation Ireland (SFI) under grant number 13/RC/2092_P2 (iCRAG, the SFI Research Centre in Applied Geosciences) Geosciences Department funding (BIRD_182501)