Submarine landslides have been identified in almost all ocean basins worldwide. The largest submarinelandslides occur on very shallow slopes and can be far larger than any terrestrial landslide. Submarine landslidescan produce tsunami whose far-reaching effects can rival those produced by earthquake-tsunamis and threatenincreasingly populated coastlines. Even small landslides can damage very expensive and critically important offshoreinfrastructure, such as pipelines used for oil and gas recovery, and telecommunication cables that nowcarry over 95% of digital data traffic. A better understanding of submarine landslide processes, includingtriggering mechanisms, preconditioning factors, timing, and frequency as well as dynamics of submarinelandslide, and their consequences are of clear societal and economic importance. Despite their importance,many fundamental submarine landslide processes are still poorly understood. We currently have many studiesthat have mapped and sampled submarine landslide deposits; however, in order to fill outstanding but keyknowledge gaps, future studies may have to go beyond this in order to unravel processes governing submarinelandslides with even more interdisciplinary approaches. This chapter provides a very short review about submarinelandslide studies, with emphasis on the emerging needs in future landslide research.
Le frane sottomarine sono state identificate in quasi tutti i bacini oceanici del mondo, esse si verificano su pendii molto bassi e possono essere molto più grandi di qualsiasi frana terrestre. Inoltre, le frane sottomarine possono produrre tsunami i cui effetti di vasta portata possono essere comparabili alle onde generate da terremoti e minacciare coste sempre più popolate. Anche piccole frane possono danneggiare infrastrutture offshore molto costose e di fondamentale importanza, come gli oleodotti e i cavi di telecomunicazione. Una migliore comprensione dei processi di frana sottomarina, inclusi i meccanismi di innesco, i fattori di pre-condizionamento, tempi e frequenza nonché le dinamiche del franamento sono di chiara importanza sociale ed economica. Nonostante la loro importanza, molti processi fondamentali relativi alle frane sottomarine sono ancora poco conosciuti. Al momento abbiamo molti studi che hanno mappato e campionato depositi di frane sottomarine; tuttavia, al fine di colmare le lacune di conoscenza, studi futuri dovranno avere approcci ancora più interdisciplinari. Questo capitolo fornisce una breve rassegna di studi sulle frane sottomarine.
Modern submarine landslides Complexes: A Short Review
Marzia Rovere;
2019
Abstract
Submarine landslides have been identified in almost all ocean basins worldwide. The largest submarinelandslides occur on very shallow slopes and can be far larger than any terrestrial landslide. Submarine landslidescan produce tsunami whose far-reaching effects can rival those produced by earthquake-tsunamis and threatenincreasingly populated coastlines. Even small landslides can damage very expensive and critically important offshoreinfrastructure, such as pipelines used for oil and gas recovery, and telecommunication cables that nowcarry over 95% of digital data traffic. A better understanding of submarine landslide processes, includingtriggering mechanisms, preconditioning factors, timing, and frequency as well as dynamics of submarinelandslide, and their consequences are of clear societal and economic importance. Despite their importance,many fundamental submarine landslide processes are still poorly understood. We currently have many studiesthat have mapped and sampled submarine landslide deposits; however, in order to fill outstanding but keyknowledge gaps, future studies may have to go beyond this in order to unravel processes governing submarinelandslides with even more interdisciplinary approaches. This chapter provides a very short review about submarinelandslide studies, with emphasis on the emerging needs in future landslide research.File | Dimensione | Formato | |
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