Slope stabilityof the Guadiaro-Baños contourite drifts (SW Mediterranean)
X Simposio sobre el Margen Ibérico Atlántico - X Simpósio sobre a Margen Ibérica Atlántica, 7-9 de julio de 2022, Bilbao
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | comunicación de congreso biblioteca |
| Language: | English |
| Published: |
2022-07-08
|
| Subjects: | Submarine landslide, Alboran Sea, Sedimentology, In-situ geotechnical tests (CPTu), Factor of Safety (FoS), |
| Online Access: | http://hdl.handle.net/10261/333594 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
dig-icm-es-10261-333594 |
|---|---|
| record_format |
koha |
| spelling |
dig-icm-es-10261-3335942023-08-21T08:41:40Z Slope stabilityof the Guadiaro-Baños contourite drifts (SW Mediterranean) Yenes, Mariano Casas, David Nespereira, José López-González, Nieves Casalbore, Daniele Monterrubio, Serafín Alonso, Belén Ercilla, Gemma Juan, Carmen Bárcenas, Patricia Palomino, Desirée Mata Campo, Maria Pilar Vázquez, Juan Tomás Estrada, Ferran Azpiroz Zabala, Maria Teixeira, Manuel Ministerio de Economía y Competitividad (España) Agencia Estatal de Investigación (España) Submarine landslide Alboran Sea Sedimentology In-situ geotechnical tests (CPTu) Factor of Safety (FoS) X Simposio sobre el Margen Ibérico Atlántico - X Simpósio sobre a Margen Ibérica Atlántica, 7-9 de julio de 2022, Bilbao Large Quaternary plastered drifts characterise the slope and base of slope of the area between the Guadiaro and Baños turbidite systems (Alboran Sea). A terraced contourite drift has developed between 190 and 600 meters water depth (mwd). Seawards, another plastered drift extends from a scarpat 600 mwd to beyond the base of slope. The sedimentary and physical properties of the contourite drifts allowed establishing a geotechnical model that reveals high factors of safety. The sediments evolve from granular, low plasticity and very poorly sorted on the contourite terrace to medium-to high-plasticity, low-permeability and poorly sorted silty clayey-sediments on the distal contourites at the base of slope. These characteristics are consistent with the geotechnical model defined by the in-situ properties and SBT (Soil Behaviour Types) classification. The coarse-grained sediments, are defined by cohesion (c′) and internal friction angle (ϕ′)values of0-9 kPa and 46-30º, respectively. The undrained shear strength gradient (∇Su) is 2 kPa/m for distal contourites. These properties allow assessing high factors of safety (FoS), for all the scenarios considered, including seismic loading. Several characteristics and processes may explain the high stability compared to others with similar sedimentary features. These include 1) the geometry of the drifts, defined by an upper contouritic terrace and low-mounded cross-sections; and 2) recurrent low intensity earthquakes and cyclic loading induced by internal waves, both favouring the dynamic compaction This research was supported by the Spanish Fauces project (CTM2015-65461-C2-1-R). This work acknowledges the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S). We are also grateful for the data we received from the Viatar project (http://datos.ieo.es/) Peer reviewed 2023-08-21T08:40:58Z 2023-08-21T08:40:58Z 2022-07-08 comunicación de congreso X Simposio sobre el Margen Ibérico Atlántico - X Simpósio sobre a Margen Ibérica Atlántica (2022) http://hdl.handle.net/10261/333594 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO//CTM2015-65461-C2-1-R/ES/FACTORES DE RIESGO GEOLOGICO ASOCIADO A CABECERAS DE CAÑONES SUBMARINOS DEL SUR DE LA PENINSULA IBERICA/ Sí none |
| institution |
ICM ES |
| collection |
DSpace |
| country |
España |
| countrycode |
ES |
| component |
Bibliográfico |
| access |
En linea |
| databasecode |
dig-icm-es |
| tag |
biblioteca |
| region |
Europa del Sur |
| libraryname |
Biblioteca del ICM España |
| language |
English |
| topic |
Submarine landslide Alboran Sea Sedimentology In-situ geotechnical tests (CPTu) Factor of Safety (FoS) Submarine landslide Alboran Sea Sedimentology In-situ geotechnical tests (CPTu) Factor of Safety (FoS) |
| spellingShingle |
Submarine landslide Alboran Sea Sedimentology In-situ geotechnical tests (CPTu) Factor of Safety (FoS) Submarine landslide Alboran Sea Sedimentology In-situ geotechnical tests (CPTu) Factor of Safety (FoS) Yenes, Mariano Casas, David Nespereira, José López-González, Nieves Casalbore, Daniele Monterrubio, Serafín Alonso, Belén Ercilla, Gemma Juan, Carmen Bárcenas, Patricia Palomino, Desirée Mata Campo, Maria Pilar Vázquez, Juan Tomás Estrada, Ferran Azpiroz Zabala, Maria Teixeira, Manuel Slope stabilityof the Guadiaro-Baños contourite drifts (SW Mediterranean) |
| description |
X Simposio sobre el Margen Ibérico Atlántico - X Simpósio sobre a Margen Ibérica Atlántica, 7-9 de julio de 2022, Bilbao |
| author2 |
Ministerio de Economía y Competitividad (España) |
| author_facet |
Ministerio de Economía y Competitividad (España) Yenes, Mariano Casas, David Nespereira, José López-González, Nieves Casalbore, Daniele Monterrubio, Serafín Alonso, Belén Ercilla, Gemma Juan, Carmen Bárcenas, Patricia Palomino, Desirée Mata Campo, Maria Pilar Vázquez, Juan Tomás Estrada, Ferran Azpiroz Zabala, Maria Teixeira, Manuel |
| format |
comunicación de congreso |
| topic_facet |
Submarine landslide Alboran Sea Sedimentology In-situ geotechnical tests (CPTu) Factor of Safety (FoS) |
| author |
Yenes, Mariano Casas, David Nespereira, José López-González, Nieves Casalbore, Daniele Monterrubio, Serafín Alonso, Belén Ercilla, Gemma Juan, Carmen Bárcenas, Patricia Palomino, Desirée Mata Campo, Maria Pilar Vázquez, Juan Tomás Estrada, Ferran Azpiroz Zabala, Maria Teixeira, Manuel |
| author_sort |
Yenes, Mariano |
| title |
Slope stabilityof the Guadiaro-Baños contourite drifts (SW Mediterranean) |
| title_short |
Slope stabilityof the Guadiaro-Baños contourite drifts (SW Mediterranean) |
| title_full |
Slope stabilityof the Guadiaro-Baños contourite drifts (SW Mediterranean) |
| title_fullStr |
Slope stabilityof the Guadiaro-Baños contourite drifts (SW Mediterranean) |
| title_full_unstemmed |
Slope stabilityof the Guadiaro-Baños contourite drifts (SW Mediterranean) |
| title_sort |
slope stabilityof the guadiaro-baños contourite drifts (sw mediterranean) |
| publishDate |
2022-07-08 |
| url |
http://hdl.handle.net/10261/333594 |
| work_keys_str_mv |
AT yenesmariano slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean AT casasdavid slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean AT nespereirajose slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean AT lopezgonzaleznieves slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean AT casalboredaniele slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean AT monterrubioserafin slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean AT alonsobelen slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean AT ercillagemma slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean AT juancarmen slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean AT barcenaspatricia slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean AT palominodesiree slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean AT matacampomariapilar slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean AT vazquezjuantomas slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean AT estradaferran slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean AT azpirozzabalamaria slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean AT teixeiramanuel slopestabilityoftheguadiarobanoscontouritedriftsswmediterranean |
| _version_ |
1777668028029206528 |