Understanding the retreat of the Jurassic Cantabrian coast (N. Spain): Comprehensive monitoring and 4D evolution model of the Tazones Lighthouse landslide

Domínguez-Cuesta, María José; González-Pumariega, Pelayo; Valenzuela, Pablo; Fernández, Carlos López; Rodríguez‐Rodríguez, Laura; Ballesteros, Daniel; Mora, Manuel; Meléndez, M.; Herrera, Federico; Marigil, M.A.; Pando, Luis; Cuervas-Mons, José; Jiménez-Sánchez, Montserrat

doi:10.1016/j.margeo.2022.106836

Cited by 5 publications

(10 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This led to the destruction of a restaurant located 150 m from the coast and increased activity of falling debris and blocks on the front of the cliff. The area was monitored by field work and UAV photogrammetric surveys between June 2018 and May 2020 [17]. A set of complex movements have developed affecting the Jurassic bedrock of the Lastres Formation [18,19], a multilayer sandstone and marl dipping 14-17 • north (towards the sea), which is affected by two families of joints (J 1 : 166/75; J 2 : 85/89; [17]) and multiple fault systems (NE-SW, NW-SE, E-W and NNW-SSE; [20]).…”

Section: Settings Of Study Areamentioning

confidence: 99%

“…The area was monitored by field work and UAV photogrammetric surveys between June 2018 and May 2020 [17]. A set of complex movements have developed affecting the Jurassic bedrock of the Lastres Formation [18,19], a multilayer sandstone and marl dipping 14-17 • north (towards the sea), which is affected by two families of joints (J 1 : 166/75; J 2 : 85/89; [17]) and multiple fault systems (NE-SW, NW-SE, E-W and NNW-SSE; [20]). This deltaic formation displays frequent changes in lateral facies and strata thickness.…”

Section: Settings Of Study Areamentioning

confidence: 99%

“…This deltaic formation displays frequent changes in lateral facies and strata thickness. Previous works refer to old jet mining works in the surroundings [21][22][23], but no clear signs of mining were found in the field before, despite the fact that manual cores were extracted in one of the areas where archaeologists referred to the presence of old mining activity [17,24].…”

Section: Settings Of Study Areamentioning

confidence: 99%

“…cores were extracted in one of the areas where archaeologists referred to the presence old mining activity [17,24].…”

Section: Settings Of Study Areamentioning

confidence: 99%

“…The Cantabrian coast (North Iberian Peninsula) is eminently rocky [15], and, in some specific stretches, retreat rates of more than 2 m yr −1 have been recorded over the last 15 years [16]. This work focuses on the unstable Tazones Lighthouse cliff, located on the Cantabrian Coast where an active c. 70,000 m 2 complex landslide has been systematically monitored since June 2018 [17]. Slope movement presumably takes place through a combination of translation and sliding mechanisms strongly influenced by bedrock discontinuities, but some important questions remain unsolved.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Using Remote Sensing Methods to Study Active Geomorphologic Processes on Cantabrian Coastal Cliffs

et al. 2022

View full text Add to dashboard Cite

Gravitational processes on inaccessible cliffs, especially in coastal areas, are difficult to study in detail with only in situ techniques. This difficulty can be overcome by the complementary application of remote sensing methods. This work focuses on an active complex landslide affecting the slope of the Tazones Lighthouse (Cantabrian coast, North Iberian Peninsula), which has been monitored since June 2018. The aim of this research is to establish a conceptual model of the internal structure of the slope. A remote multitechnique approach was applied, including landscape deformation analysis from photogrammetric surveys, ground motion detection applying A-DInSAR techniques and Sentinel-1 satellite data, and electrical resistivity tomography. The obtained results showed the great potential of some of the remote techniques, such as UAV photogrammetry and electrical tomography, and the ineffectiveness of others, such as A-DInSAR, which failed to provide adequate results due to the profuse vegetation. This work made it possible to establish a geological model of the functioning of the slope of the Tazones Lighthouse and to deduce the surface extent of the destabilized mass (70,750 m2), the rupture surface shape (stepped), its in-depth extent (10–50 m), the volume of materials involved (~3,550,000 m3) and the type of landslide (complex including a predominant translational slide). The combination of field and remote sensing data significantly increased the possibility of reaching a comprehensive geological interpretation of landslides on rocky coasts.

show abstract

Section: Settings Of Study Areamentioning

confidence: 99%

Section: Settings Of Study Areamentioning

confidence: 99%

Section: Settings Of Study Areamentioning

confidence: 99%

“…cores were extracted in one of the areas where archaeologists referred to the presence old mining activity [17,24].…”

Section: Settings Of Study Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Using Remote Sensing Methods to Study Active Geomorphologic Processes on Cantabrian Coastal Cliffs

et al. 2022

View full text Add to dashboard Cite

show abstract

Rockfall susceptibility analysis through 3D simulations in marine protected areas of the Portofino coastline: case studies of San Fruttuoso and Paraggi bays

Clemente

Spizzichino

Leoni

et al. 2023

Bull Eng Geol Environ

View full text Add to dashboard Cite

The research focuses on the assessment of the potential geomorphological hazards affecting the stability of the Promontory of Portofino (Regional Natural Park of Portofino, Northern Italy), mainly on the bays of San Fruttuoso and Paraggi. The study area constitutes one of the most representative and most populated environments, both by locals and tourists, of the entire Liguria area. For this reason, there is a growing need for investigation on the natural dynamics of these landscapes, based on detailed topographic information. The research starts from a regional geological and geomorphological analysis specific to the study area, combined with a multi-model comparison algorithm (M3C2), which allows comparing two LiDAR datasets acquired in 2008 and 2020, respectively, to assess the overall dynamics of the promontory development. Then, a detailed study of San Fruttuoso and Paraggi bays, two key points for visitors and therefore for management, is performed. Three-dimensional modeling of rockfalls is carried out, which allows the development of a specific management oriented to the use of nature-based solutions (NBSs) strategies, respecting the environment and increasing safety against instability processes in these areas.

show abstract

Coastal retreat and sea-cliff dynamic on the North Atlantic coast (Gerra Beach, Cantabrian Coast, Spain)

Serrano,

de Sanjosé,

Gómez-Lende

et al. 2024

Environ Earth Sci

View full text Add to dashboard Cite

Gerra is small beach located at the foot of a cliff on the Western coast of Cantabria (North of Iberian Peninsula). It has a sandy distal part and a proximal part at the foot of the cliff made up of boulders, supported by rockfalls and landslides from the cliff. Claystones, limestones and marls of the Triassic and Cretaceous ages form the cliff. To study geomorphological processes, a geomorphological map was drawn up; analysis of the beach deposits as texture, granulometry and Atterberg limits; analysis of photogrammetric flights between 1957 and 2017; drone flights between 2017 and 2020; and geomatic monitoring of the cliff and the beach by means of a terrestrial laser scanner (TLS) between 2012 and 2019. The processes involved in the coastal dynamic and retreat of the cliff and beach have been established, as well as the rates of erosion and retreat, which coincide with other beaches on the Cantabrian Coast. The current dynamics are characterized by the moderate regression of the coastline and greater regression and dynamism at the cliff-top, which implies the gradual degradation of the cliff due to loss of verticality. Among the factors involved in the cliff degradation, the main changes in the present and future evolution of the sea cliff can only be ascribed to sea level rise.

show abstract

Understanding the retreat of the Jurassic Cantabrian coast (N. Spain): Comprehensive monitoring and 4D evolution model of the Tazones Lighthouse landslide

Cited by 5 publications

References 31 publications

Using Remote Sensing Methods to Study Active Geomorphologic Processes on Cantabrian Coastal Cliffs

Using Remote Sensing Methods to Study Active Geomorphologic Processes on Cantabrian Coastal Cliffs

Rockfall susceptibility analysis through 3D simulations in marine protected areas of the Portofino coastline: case studies of San Fruttuoso and Paraggi bays

Coastal retreat and sea-cliff dynamic on the North Atlantic coast (Gerra Beach, Cantabrian Coast, Spain)

Contact Info

Product

Resources

About