Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/11949
DC Field | Value | Language |
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dc.date.accessioned | 2018-10-08T10:51:40Z | en |
dc.date.available | 2018-10-08T10:51:40Z | en |
dc.date.issued | 2016 | en |
dc.identifier.uri | http://hdl.handle.net/2122/11949 | en |
dc.description.abstract | This paper investigates several wedge structures formed in continental deposits covering marine sediments deposited during MIS 5 along the central Patagonian coast of Argentina. The size and surface microtexture characteristics of the infilling sediments are consistent with a depositional environment dominated by aeolian transport. Fragments of Andean volcanic rocks (glass shards) in the wedge-fill suggest long-distance transport via a westerly component of wind direction. The wedges are interpreted as products of deep seasonal frost action in frozen ground, which produced open cracks that filled rapidly with partially non-local aeolian sediments. Many wedges cross cut carbonate crusts that formed under permafrost conditions in coastal Patagonia. The radiocarbon dating of carbonate crusts yielded an age of 25–27 kyr bp, while wedge-fill sediments are OSL dated to 14 670 ± 750 yr bp. This indicates that ground wedge formation occurred during a cold event (the Antarctic Cold Reversal period) that interrupted the permafrost degradation following the Last Glacial Maximum. | en |
dc.description.sponsorship | University of Pisa (Progetto Ateneo 2007, Leader G. Zanchetta) and MIUR (PRIN2008, Leader G. Zanchetta).CADACE no-profit organization for providing logistical support to the field campaign. | en |
dc.language.iso | English | en |
dc.relation.ispartof | Geografiska Annaler: Series A, Physical Geography | en |
dc.relation.ispartofseries | /96 (2016) | en |
dc.subject | ice-wedge | en |
dc.subject | MIS5 | en |
dc.subject | Patagonia Argentina | en |
dc.title | Late‐pleistocene wedge structures along the patagonian coast (argentina): chronological constraints and palaeo‐environmental implications | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 161-176 | en |
dc.identifier.doi | 10.1111/geoa.12038 | en |
dc.description.obiettivoSpecifico | 5A. Paleoclima e ricerche polari | en |
dc.description.journalType | JCR Journal | en |
dc.contributor.author | Ribolini, Adriano | en |
dc.contributor.author | Bini, Monica | en |
dc.contributor.author | Consoloni, Ilaria | en |
dc.contributor.author | Isola, Ilaria | en |
dc.contributor.author | Pappalardo, Marta | en |
dc.contributor.author | Zanchetta, Giovanni | en |
dc.contributor.author | Fuck, Enrique | en |
dc.contributor.author | Panzieri, Laura | en |
dc.contributor.author | Martini, Marco | en |
dc.contributor.author | Terrasi, Filippo | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Università di Pisa | - |
crisitem.author.dept | Dipartimento di Scienze della Terra, Università di Pisa, Pisa, Italy | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.dept | Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, INGEA, La Plata, ARGENTINA. | - |
crisitem.author.orcid | 0000-0001-5851-8775 | - |
crisitem.author.orcid | 0000-0003-1482-2630 | - |
crisitem.author.orcid | 0000-0002-3911-4676 | - |
crisitem.author.orcid | 0000-0001-9443-5248 | - |
crisitem.author.orcid | 0000-0002-7080-9599 | - |
crisitem.author.orcid | 0000-0001-6690-7455 | - |
crisitem.author.orcid | 0000-0001-5641-8973 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | Existing users please Login |
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2014_Ribolini ice wedge.pdf | 2.04 MB | Adobe PDF |
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