Fringed Patagonian tableland: One of Earth's largest and oldest landslide terrains

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F24%3AA2503919" target="_blank" >RIV/61988987:17310/24:A2503919 - isvavai.cz</a>

Result on the web

<a href="https://linkinghub.elsevier.com/retrieve/pii/S001282522400254X" target="_blank" >https://linkinghub.elsevier.com/retrieve/pii/S001282522400254X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.earscirev.2024.104926" target="_blank" >10.1016/j.earscirev.2024.104926</a>

Result language

angličtina

Original language name

Fringed Patagonian tableland: One of Earth's largest and oldest landslide terrains

Original language description

Sedimentary and volcanic tablelands host the world's largest landslide areas, sometimes spanning hundreds of kilometers along escarpments. This study, employing new remote sensing-based mapping and drawing on an expanding body of literature on paleogeographic evolution, revises the extent, controls, and chronology of some of Earth's largest coalescent landslides in the volcanic tableland of extra-Andean Patagonia. Mostly ancient rotational slides and rock spreads, accompanied by earthflows and occasional rock avalanches, cover approximately 30,000 km2, roughly a fifth of the Patagonian escarpments, with the largest landslide areas exceeding 1000 km2. The immense size of the failed tableland in Patagonia is inherited from stratigraphy and geological history: weak marine and continental Cretaceous-Miocene sedimentary and volcaniclastic rocks, capped by plateau basalts, create a highly unstable environment, outcropping along thousands of kilometers of escarpments. Most landslide areas occupy the steepest, most dissected parts of Patagonian tableland, occurring independently of recent climatic conditions. Some of the largest complexes are found in both the most humid and arid regions. Cross-cutting relationships between landslides and dated glacial, lacustrine, marine deposits, and lava flows reveal that some landslides have persisted for several million years, marking them as some of Earth's oldest landslide terrains with distinctive geomorphological footprints. Future research on failed Patagonian tableland should include direct radiometric dating, InSAR technology monitoring, and numerical stability modeling of landslides. This comprehensive approach will deepen our understanding of their origins and determine whether these giant landslide fringes predominantly represent fossil features or could be reactivated under contemporary environmental conditions.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10508 - Physical geography

Project

<a href="/en/project/GA23-07310S" target="_blank" >GA23-07310S: Deciphering the largest rock spread on Earth: why in arid Patagonia?</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

EARTH-SCI REV

ISSN

0012-8252

e-ISSN

1872-6828

Volume of the periodical

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Issue of the periodical within the volume

November 2024

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

18

Pages from-to

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UT code for WoS article

001316275800001

EID of the result in the Scopus database

2-s2.0-85203493155