Submarine geomorphology, tectonic features and mass wasting processes in the archipelago of San Andres, Providencia and Santa Catalina (western Caribbean)

Idárraga-García, Javier; García-Varón, Jacqueline; León, Hermann

doi:10.1016/j.margeo.2021.106458

Cited by 10 publications

(9 citation statements)

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“…Faults bounding the eastern and southern sides of the Roncador Bank, including the eastward continuation of the fault ruptured by the Providencia sequence, cut slope deposits formed along the edges of the bank and indicate ongoing activity (Idárraga-García and León, 2019). The fault bounding the southern edge of the Serrana Bank likewise shows evidence of reactivation following the establishment of the Miocene-present kinematic regime (Carvajal-Arenas and Mann, 2018;Idárraga-García et al, 2021). Taken together, these faults define an area at least ~130 km × ~200 km.…”

Section: Research Papermentioning

confidence: 94%

“…Smaller-scale faulting in the region (see Fig. 1B), like that active during the Providencia sequence, is subparallel to either the San Andres Rift or to the Pedro Bank Fault Zone/Hess Escarpment (see regional faults in Carvajal-Arenas and Mann, 2018;Idárraga-García and León, 2019;Idárraga-García et al, 2021). The proximity of the Providencia mainshock to a mapped fault trace southeast of Isla Providencia, the mainshock's fault-plane orientation, and the fault-plane orientation of fore-or aftershocks (Idárraga-García and León, 2019;Idárraga-García et al, 2021; see Fig.…”

Section: Plate Boundaries and Major Intraplate Faults Of The Western ...mentioning

confidence: 99%

“…1B), like that active during the Providencia sequence, is subparallel to either the San Andres Rift or to the Pedro Bank Fault Zone/Hess Escarpment (see regional faults in Carvajal-Arenas and Mann, 2018;Idárraga-García and León, 2019;Idárraga-García et al, 2021). The proximity of the Providencia mainshock to a mapped fault trace southeast of Isla Providencia, the mainshock's fault-plane orientation, and the fault-plane orientation of fore-or aftershocks (Idárraga-García and León, 2019;Idárraga-García et al, 2021; see Fig. 1C) strongly suggest that the Providencia sequence occurred along the northeast-trending Southern Roncador fault (alternately named the Serrana Fault System; Idárraga-García et al, 2021) ~20 km south of the island.…”

Section: Plate Boundaries and Major Intraplate Faults Of The Western ...mentioning

confidence: 99%

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Oceanic intraplate faulting as a pathway for deep hydration of the lithosphere: Perspectives from the Caribbean

et al. 2022

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The recycling of water into the Earth’s mantle via hydrated oceanic lithosphere is believed to have an important role in subduction zone seismicity at intermediate depths. Hydration of oceanic lithosphere has been shown to drive double planes of intermediate-depth, Wadati-Benioff zone seismicity at subduction zones. However, observations from trenches show that pervasive normal faulting causes hydration ~25 km into the lithosphere and can explain neither locations where separations of 25–40 km between Wadati-Benioff zone planes are observed nor the spatial variability of the lower plane in these locations, which suggests that an additional mechanism of hydration exists. We suggest that intraplate deformation of >50-m.y.-old lithosphere, an uncommon and localized process, drives deeper hydration. To test this, we relocated the 25 November 2018 6.0 MW Providencia, Colombia, earthquake mainshock and 575 associated fore- and aftershocks within the interior of the Caribbean oceanic plate and compared these with receiver functions (RF) that sampled the fault at its intersection with the Mohorovičić discontinuity. We examined possible effects of velocity model, initial locations of the earthquakes, and seismic-phase arrival uncertainty to identify robust features for comparison with the RF results. We found that the lithosphere ruptured from its surface to a depth of ~40 km along a vertical fault and an intersecting, reactivated normal fault. We also found RF evidence for hydration of the mantle affected by this fault. Deeply penetrating deformation of lithosphere like that we observe in the Providencia region provides fluid pathways necessary to hydrate oceanic lithosphere to depths consistent with the lower plane of Wadati-Benioff zones.

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Section: Research Papermentioning

confidence: 94%

Section: Plate Boundaries and Major Intraplate Faults Of The Western ...mentioning

confidence: 99%

Section: Plate Boundaries and Major Intraplate Faults Of The Western ...mentioning

confidence: 99%

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Oceanic intraplate faulting as a pathway for deep hydration of the lithosphere: Perspectives from the Caribbean

et al. 2022

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“…La RBS está ubicada geográficamente en el Alto de Nicaragua al noroeste de la cuenca Colombia, con una disposición NNE-SSW. Las islas y atolones de la RBS tienen una larga historia geológica que inicia con un vulcanismo de flujos de lava y depósitos piroclásticos y epiclásticos en el Cenozoico temprano, seguido por una subsidencia de estos y depositación de calizas arrecifales de aguas poco profundas (Garzón-Ferreira y Díaz, 2003;Milliman, 1969en Díaz, 2005Geister y Díaz, 2007;Carvajal, 2009;Gamboa et al, 2012;Afanador-Franco et al, 2013;Idárraga-García y León, 2019;Idárraga-García et al, 2021). La ICAlb corresponde a un atolón compuesto por dos cayos (North Cay y South Cay) que emergieron sobre el nivel del mar, los cuales presentan tendencias lineales al este y sur, como consecuencia del control tectónico del sistema de fallas Alburqueque-Providencia y el sistema de fallas de Hess; hacia el costado noreste se presentan dos crestas rectilíneas que se extienden unos kilómetros hacia el norte hasta unirse para formar la isla de San Andrés (Geister, 1992;Díaz et al, 1996;Geister y Díaz, 2002;CCO, 2015;Idárraga-García et al, 2021).…”

Section: Marco Geológicounclassified

Unidades geomorfológicas y distribución de facies sedimentarias en la Isla Cayos de Alburquerque, Reserva de Biosfera Seaflower, Caribe colombiano

Martínez-Clavijo¹,

López-Muñoz²,

Cabarcas-Mier³

et al. 2021

bol. geol.

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Se caracterizaron las unidades geomorfológicas mediante técnicas de sensoramiento remoto (imágenes satelitales y acústico) y se determinó la distribución de las facies sedimentarias validadas con datos in situ en la Isla Cayos de Alburquerque como una contribución al conocimiento de la Reserva de Biosfera de Seaflower. Esta isla cayos presenta una geomorfología típica de un atolón con Bajos arrecifales, Cuenca lagunar, Terraza lagunar, Terraza prearrecifal, Talud y Arrecife periférico, el cual presenta una extensión aproximada de 6 km que son impactados por el fuerte oleaje originados por los vientos alisios del noreste. Se lograron establecer 10 facies sedimentarias de composición biolitoclástica y bioclástica de formaciones coralinas y del basamento volcánico del atolón, con una distribución heterogénea. Este estudio permite establecer una línea base para el conocimiento de la dinámica del transporte y depósito de los sedimentos en las plataformas arrecifales.

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“…However, rapid development of new cartographic techniques, as well as advanced methods of data modelling and visualisation have largely contributed to general progress in mapping. Using these methods, the interpretation of submarine geomorphology by GIS methods of spatial and statistical analysis became possible and have been regularly reported in relevant studies (Hillier, 2011;Harris et al, 2014a;2014b;Lemenkova, 2019a;2019b;Brothers et al, 2020;Idárraga-García et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Mapping Submarine Geomorphology of the Philippine and Mariana Trenches By an Automated Approach Using GMT Scripts

Lemenkova

2022

Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences.

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This paper presents a geospatial analysis of two oceanic trenches using a GMT (Generic Mapping Tools) cartographic method that exploits the scripting approach to visualisation of their geometric shapes. To this end, the research applies the high-resolution datasets GEBCO and ETOPO1 and ETOPO5 for modelling of the submarine relief. This allows taking into account the 2D and 3D shape deviations in the geomorphology of the two selected segments of the trenches by transecting a series of the cross-section profiles. A scripting algorithm of spatial data processing based on the GMT techniques visualised the topography of the submarine objects in 2D and 3D forms and extracted the topographic data from raster grids for statistical analysis of depth using the cross-section transect profiles of both trenches. The bathymetry of the Mariana Trench was evaluated in the southern segment located near the Challenger Deep area, southwest of Guam Island, in comparison with the segment of the Philippine Trench, which was transected in the surroundings of Mindanao Island. The study presented a comparative submarine geomorphic modelling and spatial analysis of the Philippine Sea basin area. The bathymetric analysis of the relief in the Mariana and Philippine trenches showed effective performance of the GMT scripting toolset in advanced cartographic data analysis and visualisation.

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Submarine geomorphology, tectonic features and mass wasting processes in the archipelago of San Andres, Providencia and Santa Catalina (western Caribbean)

Cited by 10 publications

References 51 publications

Oceanic intraplate faulting as a pathway for deep hydration of the lithosphere: Perspectives from the Caribbean

Oceanic intraplate faulting as a pathway for deep hydration of the lithosphere: Perspectives from the Caribbean

Unidades geomorfológicas y distribución de facies sedimentarias en la Isla Cayos de Alburquerque, Reserva de Biosfera Seaflower, Caribe colombiano

Mapping Submarine Geomorphology of the Philippine and Mariana Trenches By an Automated Approach Using GMT Scripts

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