Geomorphology of the Tertiary gypsum formations in the Ebro Depression (Spain)

Elorza, Mateo Gutiérrez; Santolalla, Francisco Gutiérrez

doi:10.1016/s0016-7061(98)00065-2

Cited by 57 publications

(7 citation statements)

References 26 publications

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“…This type of landslide typically develops on slopes formed by a soft and ductile material capped by a fragile rock mass (e.g. Elorza and Gutiérrez Santolalla 1998, Gutiérrez-Santolalla et al 2012, Mantovani, et al 2013. Additionally, the delimitation of the massive gypsum blocks by subvertical crack J3 that presents an orientation 18/79, parallel to the free face of the slope (Fig.…”

Section: Interpretation and Synthesismentioning

confidence: 99%

A multidisciplinary approach for the investigation of a rock spreading on an urban slope

et al. 2017

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Landslides are very complex processes controlled by multiple factors. The knowledge and characterization of these factors is essential for a comprehensive understanding of the mechanisms and kinematics of the instabilities and for an efficient design of corrective measures. The aim of this work is to combine traditional geological and geotechnical techniques with geophysical, remote sensing and forensic techniques for obtaining a whole picture of an active lateral spreading affecting the Finestrat municipality in Alicante, SE Spain. Geomorphological, geotechnical and geophysical techniques (i.e. ground penetrating radar and refraction seismic) have provided essential information about the geometry, structure and petro-physical properties of the slope. A Terrestrial Laser Scanner was used for recognizing the most important sets of discontinuities affecting the rock mass and to evaluate the activity of the landslide slope. Complementarily, a forensic analysis of the building damage completed the available datasets, yielding very useful kinematic information of the landslide. Finally, a sensitivity analysis of the stability of the rock slope has been performed considering both block toppling and block sliding models. Therefore, the multisource analysis performed in this work has allowed the identification and characterization of a complex lateral spreading, highlighting its effectiveness for a comprehensive understanding of this type of landslide.

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Section: Interpretation and Synthesismentioning

confidence: 99%

A multidisciplinary approach for the investigation of a rock spreading on an urban slope

et al. 2017

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“…Remobilisation and deformation of sediments in sink-hole systems generally has been described from an economic (Lolcama et al, 2002) or urban risk (Elorza and Santolalla, 1998) perspective. Sink-hole deposits, particularly in mantled gypsum karst, are often sites of exceptional fossil abundance and diversity (e.g.…”

Section: Interpretation Of Stratigraphy and Structuresmentioning

confidence: 99%

“…The structural evidence for movement down-palaeoslope towards sink-holes suggests that gravity, combined with hydrological processes, drove deformation (cf. Elorza and Santolalla, 1998). The ductile (plastic) nature of the deformation (i.e.…”

Section: Interpretation Of Stratigraphy and Structuresmentioning

confidence: 99%

“…Loss of altered, highly friable dolerite into a sink-hole system (mass-wasting), provides the driving force for downslope movement (as described for gypsum karst mantled by alluvium in the Ebro Depression of Spain; Elorza and Santolalla, 1998). However, the triggering mechanism is not clear.…”

Section: Interpretation Of Stratigraphy and Structuresmentioning

confidence: 99%

“…Option (i) is probably the least likely, although the possibility of deformation associated with preferential gypsum dissolution close to the sinkhole (e.g. Elorza and Santolalla, 1998) cannot be eliminated. A combination of (ii) and (iii) seems most likely.…”

Section: Interpretation Of Stratigraphy and Structuresmentioning

confidence: 99%

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Depositional and post‐depositional history of warm stage deposits at Knocknacran, Co. Monaghan, Ireland: implications for preservation of Irish last interglacial deposits

Vaughan

Dowling

Mitchell

et al. 2004

J Quaternary Science

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Coxon, P. 2004. Depositional and post-depositional history of warm stage deposits at Knocknacran, Co. Monaghan, Ireland: implications for preservation of Irish last interglacial deposits.ABSTRACT: Organic-rich deposits, uncovered during overburden removal from mantled gypsum karst at Knocknacran opencast gypsum mine, Co. Monaghan, are the best candidate to date for a last interglacial record in Ireland. The two till and organic-rich deposits (preserved at different quarry elevations) were emplaced on to a Tertiary dolerite surface during high-energy flood events and subsequently folded and faulted by movement towards sinkholes in underlying gypsum. Uranium-thorium disequilibrium dating suggests that the organic-rich deposits in the upper section were hydrologically isolated at ca. 41 ka and those in the lower section at ca. 86 ka. Interpretation of the pollen content, although tentative because of the depositional and post-depositional history of the material, suggests that the organic material originated in a warm stage possibly warmer than the post-Eemian interstadials. The unusual setting of preservation may indicate that in situ, last interglacial deposits have generally been removed by erosion in Ireland.

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2007

Karst Hydrogeology and Geomorphology

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Geomorphology of the Tertiary gypsum formations in the Ebro Depression (Spain)

Cited by 57 publications

References 26 publications

A multidisciplinary approach for the investigation of a rock spreading on an urban slope

A multidisciplinary approach for the investigation of a rock spreading on an urban slope

Depositional and post‐depositional history of warm stage deposits at Knocknacran, Co. Monaghan, Ireland: implications for preservation of Irish last interglacial deposits

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