Subseafloor stratigraphic profiling and soil classification from piezocone tests: A case study in the Gulf of Lion (NW Mediterranean Sea)

We show the results provided by piezocone tests in determining the stratigraphic profile and the soil classification of two drilling sites in the outer shelf and the upper slope of the Gulf of Lion, PRGL2 and PRGL1, respectively. Correlations with grain-size data indicate that sleeve friction can be...

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Authors: Lafuerza, Sara, Frigola Ferrer, Jaime I., Canals Artigas, Miquel, Jouet, G., Bassetti, Maria Angela, Sultan, N., Berné, S.
Format: article
Status:Published version
Publication Date:2008
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/163217
Online Access:https://hdl.handle.net/2445/163217
Access Level:Open access
Keyword:Estratigrafia
Classificació de sòls
Mediterrània (Mar)
Stratigraphic geology
Soil classification
Mediterranean Sea
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spelling Subseafloor stratigraphic profiling and soil classification from piezocone tests: A case study in the Gulf of Lion (NW Mediterranean Sea)Lafuerza, SaraFrigola Ferrer, Jaime I.Canals Artigas, MiquelJouet, G.Bassetti, Maria AngelaSultan, N.Berné, S.EstratigrafiaClassificació de sòlsMediterrània (Mar)Stratigraphic geologySoil classificationMediterranean SeaWe show the results provided by piezocone tests in determining the stratigraphic profile and the soil classification of two drilling sites in the outer shelf and the upper slope of the Gulf of Lion, PRGL2 and PRGL1, respectively. Correlations with grain-size data indicate that sleeve friction can be used for profiling fine-grained sediments (site PRGL1), whereas cone tip resistance is the most adequate for sequences made of alternations of coarse- and fine-grained intervals (site PRGL2). Normalized cone resistance and friction ratio proved to be also appropriate for soil stratigraphy as it depicts trends in the coarse fraction of the tested soil. Silts and clays present in similar proportions at site PRGL1 responded to piezocone testing as pure clays usually do. Consequently, classical soil classification methods resulted in erroneous interpretation of these sediments as clays, whereas classification of the heterogeneous deposits at PRGL2 was consistent with the grain size. When tied to a high-resolution seismic reflection profile, the stratigraphy interpreted from the piezocone profile matches with the main seismic sequences and discontinuities defined from seismic stratigraphy analysis. Graded bedding also matches with cone tip resistance and sleeve friction data.Wiley2008info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/163217Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1029/2007GC001845Geochemistry, Geophysics, Geosystems, 2008, vol. 9, num. 12, p. 1-13https://doi.org/10.1029/2007GC001845(c) American Geophysical Union (AGU) , 2008info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1632172026-05-27T06:46:51Z
dc.title.none.fl_str_mv Subseafloor stratigraphic profiling and soil classification from piezocone tests: A case study in the Gulf of Lion (NW Mediterranean Sea)
title Subseafloor stratigraphic profiling and soil classification from piezocone tests: A case study in the Gulf of Lion (NW Mediterranean Sea)
spellingShingle Subseafloor stratigraphic profiling and soil classification from piezocone tests: A case study in the Gulf of Lion (NW Mediterranean Sea)
Lafuerza, Sara
Estratigrafia
Classificació de sòls
Mediterrània (Mar)
Stratigraphic geology
Soil classification
Mediterranean Sea
title_short Subseafloor stratigraphic profiling and soil classification from piezocone tests: A case study in the Gulf of Lion (NW Mediterranean Sea)
title_full Subseafloor stratigraphic profiling and soil classification from piezocone tests: A case study in the Gulf of Lion (NW Mediterranean Sea)
title_fullStr Subseafloor stratigraphic profiling and soil classification from piezocone tests: A case study in the Gulf of Lion (NW Mediterranean Sea)
title_full_unstemmed Subseafloor stratigraphic profiling and soil classification from piezocone tests: A case study in the Gulf of Lion (NW Mediterranean Sea)
title_sort Subseafloor stratigraphic profiling and soil classification from piezocone tests: A case study in the Gulf of Lion (NW Mediterranean Sea)
dc.creator.none.fl_str_mv Lafuerza, Sara
Frigola Ferrer, Jaime I.
Canals Artigas, Miquel
Jouet, G.
Bassetti, Maria Angela
Sultan, N.
Berné, S.
author Lafuerza, Sara
author_facet Lafuerza, Sara
Frigola Ferrer, Jaime I.
Canals Artigas, Miquel
Jouet, G.
Bassetti, Maria Angela
Sultan, N.
Berné, S.
author_role author
author2 Frigola Ferrer, Jaime I.
Canals Artigas, Miquel
Jouet, G.
Bassetti, Maria Angela
Sultan, N.
Berné, S.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Estratigrafia
Classificació de sòls
Mediterrània (Mar)
Stratigraphic geology
Soil classification
Mediterranean Sea
topic Estratigrafia
Classificació de sòls
Mediterrània (Mar)
Stratigraphic geology
Soil classification
Mediterranean Sea
description We show the results provided by piezocone tests in determining the stratigraphic profile and the soil classification of two drilling sites in the outer shelf and the upper slope of the Gulf of Lion, PRGL2 and PRGL1, respectively. Correlations with grain-size data indicate that sleeve friction can be used for profiling fine-grained sediments (site PRGL1), whereas cone tip resistance is the most adequate for sequences made of alternations of coarse- and fine-grained intervals (site PRGL2). Normalized cone resistance and friction ratio proved to be also appropriate for soil stratigraphy as it depicts trends in the coarse fraction of the tested soil. Silts and clays present in similar proportions at site PRGL1 responded to piezocone testing as pure clays usually do. Consequently, classical soil classification methods resulted in erroneous interpretation of these sediments as clays, whereas classification of the heterogeneous deposits at PRGL2 was consistent with the grain size. When tied to a high-resolution seismic reflection profile, the stratigraphy interpreted from the piezocone profile matches with the main seismic sequences and discontinuities defined from seismic stratigraphy analysis. Graded bedding also matches with cone tip resistance and sleeve friction data.
publishDate 2008
dc.date.none.fl_str_mv 2008
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/163217
url https://hdl.handle.net/2445/163217
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1029/2007GC001845
Geochemistry, Geophysics, Geosystems, 2008, vol. 9, num. 12, p. 1-13
https://doi.org/10.1029/2007GC001845
dc.rights.none.fl_str_mv (c) American Geophysical Union (AGU) , 2008
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Geophysical Union (AGU) , 2008
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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