Linking earthquake-triggered paleolandslides to their seismic source and to the possible seismic event that originated them in a portion of the Argentine Precordillera (31°–33°S)

Junquera-Torrado, Sebastián; Moreiras, Stella Maris; Peces, Martín Jesús Rodríguez; Sepúlveda, Sergio A.

doi:10.1007/s11069-020-04447-1

Cited by 7 publications

(1 citation statement)

References 60 publications

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“…Crosta et al, 2014, 2015; Mather et al, 2014; McPhillips et al, 2014; Pinto et al, 2008; Strasser & Schlunegger, 2005). On the eastern Precordillera, Junquera‐Torrado et al (2021) tried to link paleo‐landslides to their potential seismic source along crustal faults. Similarly, a seismic triggering can be a possible option for the Limaxina landslide because it stands just along a major blind thrust fault bounding the Western Cordillera (Figure 1c; Armijo et al, 2015).…”

Section: Discussion: Triggering Conditions Of the Limaxina Landslidementioning

confidence: 99%

Large landslide of the hyperarid Central Western Andes triggered during a humid period of the Late Pleistocene (ca. 19°S; northern Chile)

et al. 2023

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The western flank of the Central Andes offers a unique geomorphological record of large paleolandslides that are well preserved on long time‐scales (i.e. ≥Pleistocene) due to the long‐lasting aridity of this region. However, the lack of chronological constraints on those landslides limits our understanding of the respective role of tectonics and climate on their triggering. Here, we report new 10Be surface exposure dating obtained on one of those giant slope‐failures: the Limaxina landslide (northern Chile, 19°S). Five tightly grouped exposure‐ages (one outlier discarded) point to a single landslide failure at 80 ± 4 ka. This timing being consistent with others local records of a wet episode in the Atacama Desert, it suggests a primary role of climate‐forcing on landslide activity in this region, calling to further slope failures dating in the arid Central western Andes to explore landscapes responses to Quaternary climate oscillations and extreme events.

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