Mass wasting processes along the Owen Ridge (Northwest Indian Ocean)
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| Title: | Mass wasting processes along the Owen Ridge (Northwest Indian Ocean) |
|---|---|
| Authors: | Rodriguez, Mathieu1,2,3 rodriguez@geologie.ens.fr, Fournier, Marc1,2, Chamot-Rooke, Nicolas3, Huchon, Philippe1,2, Zaragosi, Sébastien4, Rabaute, Alain1,2 |
| Source: | Marine Geology. Oct2012, Vol. 326-328, p80-100. 21p. |
| Subjects: | Landslides, Multibeam mapping, Morphometrics, Sedimentation & deposition |
| Geographic Terms: | Indian Ocean, Oman, Arabian Peninsula |
| Abstract: | Abstract: The Owen Ridge is a prominent relief that runs parallel to the coast of Oman in the NW Indian Ocean and is closely linked to the Owen Fracture Zone, an 800-km-long active fault system that accommodates today the Arabia–India strike–slip motion. Several types of mass failures mobilizing the pelagic cover have been mapped in details along the ridge using multibeam bathymetry and sediment echosounder. Here we present a synthetic map of the different types of mass wasting features observed along the ridge and we further establish a morphometric analysis of submarine landslides. The spatial variation of failure morphology is strongly related to the topography of the basement. The highest volumes of multi-events generated slides are mobilized along the southern portion of the ridge. There, the estimated volume of evacuated material during a slide is up to 45km3. Combining these new observations with re-interpreted ODP seismic lines (Leg 117) documents sporadic mass wasting events through time along the southern segment of the ridge since its uplift in the Early Miocene, with a typical recurrence rate of the order of 105–106 years. Although seismicity may still be the final triggering process, mass wasting frequency is mainly controlled by the slow pelagic sedimentation rates and hence, time needed to build up the 40–80m thick pelagic cover required to return to a mechanically unstable pelagic cover. [Copyright &y& Elsevier] |
| Copyright of Marine Geology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 83190738 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Mass wasting processes along the Owen Ridge (Northwest Indian Ocean) – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Rodriguez%2C+Mathieu%22">Rodriguez, Mathieu</searchLink><relatesTo>1,2,3</relatesTo><i> rodriguez@geologie.ens.fr</i><br /><searchLink fieldCode="AR" term="%22Fournier%2C+Marc%22">Fournier, Marc</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Chamot-Rooke%2C+Nicolas%22">Chamot-Rooke, Nicolas</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Huchon%2C+Philippe%22">Huchon, Philippe</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Zaragosi%2C+Sébastien%22">Zaragosi, Sébastien</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Rabaute%2C+Alain%22">Rabaute, Alain</searchLink><relatesTo>1,2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Marine+Geology%22">Marine Geology</searchLink>. Oct2012, Vol. 326-328, p80-100. 21p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Landslides%22">Landslides</searchLink><br /><searchLink fieldCode="DE" term="%22Multibeam+mapping%22">Multibeam mapping</searchLink><br /><searchLink fieldCode="DE" term="%22Morphometrics%22">Morphometrics</searchLink><br /><searchLink fieldCode="DE" term="%22Sedimentation+%26+deposition%22">Sedimentation & deposition</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Indian+Ocean%22">Indian Ocean</searchLink><br /><searchLink fieldCode="DE" term="%22Oman%22">Oman</searchLink><br /><searchLink fieldCode="DE" term="%22Arabian+Peninsula%22">Arabian Peninsula</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: The Owen Ridge is a prominent relief that runs parallel to the coast of Oman in the NW Indian Ocean and is closely linked to the Owen Fracture Zone, an 800-km-long active fault system that accommodates today the Arabia–India strike–slip motion. Several types of mass failures mobilizing the pelagic cover have been mapped in details along the ridge using multibeam bathymetry and sediment echosounder. Here we present a synthetic map of the different types of mass wasting features observed along the ridge and we further establish a morphometric analysis of submarine landslides. The spatial variation of failure morphology is strongly related to the topography of the basement. The highest volumes of multi-events generated slides are mobilized along the southern portion of the ridge. There, the estimated volume of evacuated material during a slide is up to 45km3. Combining these new observations with re-interpreted ODP seismic lines (Leg 117) documents sporadic mass wasting events through time along the southern segment of the ridge since its uplift in the Early Miocene, with a typical recurrence rate of the order of 105–106 years. Although seismicity may still be the final triggering process, mass wasting frequency is mainly controlled by the slow pelagic sedimentation rates and hence, time needed to build up the 40–80m thick pelagic cover required to return to a mechanically unstable pelagic cover. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Marine Geology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.margeo.2012.08.008 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 21 StartPage: 80 Subjects: – SubjectFull: Landslides Type: general – SubjectFull: Multibeam mapping Type: general – SubjectFull: Morphometrics Type: general – SubjectFull: Sedimentation & deposition Type: general – SubjectFull: Indian Ocean Type: general – SubjectFull: Oman Type: general – SubjectFull: Arabian Peninsula Type: general Titles: – TitleFull: Mass wasting processes along the Owen Ridge (Northwest Indian Ocean) Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Rodriguez, Mathieu – PersonEntity: Name: NameFull: Fournier, Marc – PersonEntity: Name: NameFull: Chamot-Rooke, Nicolas – PersonEntity: Name: NameFull: Huchon, Philippe – PersonEntity: Name: NameFull: Zaragosi, Sébastien – PersonEntity: Name: NameFull: Rabaute, Alain IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2012 Type: published Y: 2012 Identifiers: – Type: issn-print Value: 00253227 Numbering: – Type: volume Value: 326-328 Titles: – TitleFull: Marine Geology Type: main |
| ResultId | 1 |
