Morphoevolution of the Seymareh landslide-dam lake system (Zagros Mountains, Iran): Implications for Holocene climate and environmental changes

Delchiaro, Michele; Iacobucci, Giulia; Troiani, Francesco; Seta, Marta Della; Ballato, Paolo; Aldega, Luca

doi:10.1016/j.geomorph.2022.108367

Cited by 10 publications

(3 citation statements)

References 77 publications

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“…By knowing the residual 14 C content in the sample, we can determine the age of death of the organic matter. This technology can be applied to natural hazards to identify the age of ancient events and their behavior in certain aspects [ 15 , [28] , [29] , [30] , [31] ].…”

Section: Methodsmentioning

confidence: 99%

Characteristics and mechanisms of large-scale old landslides and landslide dams in the Loess Plateau—A case study from Daning County, Shanxi Province, China

Zhao,

Tang,

Feng

et al. 2023

Heliyon

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Section: Methodsmentioning

confidence: 99%

Characteristics and mechanisms of large-scale old landslides and landslide dams in the Loess Plateau—A case study from Daning County, Shanxi Province, China

Zhao,

Tang,

Feng

et al. 2023

Heliyon

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“…7000 fatalities, Plafker and Ericksen, 1978;Evans et al, 2009), or recent avalanches occurred in Pakistan (2005, M7.6 Kashmir earthquake) and the Philippines, each killing >1000 people (Harp and Crone, 2006;Lagmay et al, 2006). The most remarkable example in the Zagros Mountains is the gigantic Seymareh rock avalanche (44 Gm 3 ; 220 km 2 ), considered the largest subaerial rock slope failure worldwide (Roberts, 2008;Roberts and Evans, 2013;Shoaei, 2014;Delchiaro et al, 2019Delchiaro et al, , 2022Rouhi et al, 2022). This landslide was initiated by the detachment along multiple bedding planes of a rock slab comprising a weak unit of marls with limestone interbeds capped by thick and resistant limestone.…”

Section: Introductionmentioning

confidence: 99%

“…This landslide was initiated by the detachment along multiple bedding planes of a rock slab comprising a weak unit of marls with limestone interbeds capped by thick and resistant limestone. The rock avalanche created a scar 15.5 km wide and 7 km long, plus three large landslidedammed lakes (Roberts and Evans, 2013;Sharafi et al, 2019), involving major and enormous instantaneous geomorphic work and long-persistent landscape changes (Delchiaro et al, 2019(Delchiaro et al, , 2022. According to Roberts (2008), the energy released by the single-event Seymareh rock avalanche (10 18 J) is comparable to that of the 2005, M9 Great Sumatra earthquake (Lay et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Geology, Geomorphology and Geochronology of the Coseismic? Emad Deh Rock Avalanche Associated with a Growing Anticline and a Rising Salt Diapir, Zagros Mountains, Iran

et al. 2022

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The role of long-term preparatory factors in mass rock creep deforming slopes: insights from the Zagros Mts. belt (Iran)

Delchiaro,

Della Seta,

Martino

et al. 2024

Landslides

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The long-term evolution of slopes affected by Mass Rock Creep deformations is controlled by both time-invariant predisposing factors, such as the geo-structural inheritance, and time-dependent preparatory conditions, including regional uplift and landscape evolution rates. However, the relationship among Deep-seated Gravitational Slope Deformations, drainage network evolution, and tectonics remains poorly defined. Here, we focused on an undocumented Deep-seated Gravitational Slope Deformation affecting an area of about 8 km2 in the SE tip termination of the Siah Kuh anticline in the Lorestan arc (Zagros Mts., Iran), upstream to the Mountain Front Fault. To assess the evolution processes which involved the slope up to the present, we integrated quantitative geomorphic analysis, optically stimulated luminescence dating of geomorphic markers, and SAR interferometry techniques. In detail, we semi-automatically extracted the river terrace treads to which we associated an elevation above the thalweg based on the Relative Elevation Model allowing the order definition. The plano-altimetric distribution of the treads and the OSL ages of two levels of strath terraces sampled in the field have been correlated along the river longitudinal profile, allowing the estimation of an uplift rate of 2.8 ± 0.2 mm year−1 and 0.42 ± 0.03 mm year−1, respectively upstream and downstream of the Mountain Front Fault. SAR interferometry was used to spot present-day shallow ground displacements associated with the ongoing slope deformation, by processing 279 satellite Sentinel-1 (A and B) radar images of the ascending and descending orbit spanning from 06 October 2014 to 31 March 2019. Different landslide mechanisms were distinguished across the fold axis, rototranslative to lateral spreading interpreted as two different evolutionary stages of the same process transposed spatially through the fold axis. Indeed, the rototranslative mechanism represents an advanced stage of the strain evolution while the lateral spreading is an earlier one. Finally, we infer that the variability in the spatial distribution of the slope deformation styles and patterns in the Lorestan arc is strictly related to the coupled evolution of the drainage system and tectonics. Involved volumes (from 0.6 up to 44 km3), local relief (from 400 up to 2000 m), incision rates (from 0.8 to 2.8 ± 0.2 mm year−1), and persistence time (from 104 to 105 years) represent the most important preparatory conditions and are predisposed by a moderately dipping downslope (from 8 to 25°) sedimentary sequence characterised by units with significantly different rheological behaviour.

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Morphoevolution of the Seymareh landslide-dam lake system (Zagros Mountains, Iran): Implications for Holocene climate and environmental changes

Cited by 10 publications

References 77 publications

Characteristics and mechanisms of large-scale old landslides and landslide dams in the Loess Plateau—A case study from Daning County, Shanxi Province, China

Characteristics and mechanisms of large-scale old landslides and landslide dams in the Loess Plateau—A case study from Daning County, Shanxi Province, China

Geology, Geomorphology and Geochronology of the Coseismic? Emad Deh Rock Avalanche Associated with a Growing Anticline and a Rising Salt Diapir, Zagros Mountains, Iran

The role of long-term preparatory factors in mass rock creep deforming slopes: insights from the Zagros Mts. belt (Iran)

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