Geodetic measurements of crustal deformation on NW–SE faults of the Betic Cordillera, southern Spain, 1999–2001

Ruiz, Antonio M.; Ferhat, Gilbert; Alfaro, P.; Galdeano, Carlos Sanz de; Lacy, M. C.; Rodríguez‐Caderot, G.; Gil, A. J.

doi:10.1016/s0264-3707(02)00134-5

Cited by 25 publications

(18 citation statements)

References 12 publications

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“…Nevertheless, detailed studies on the basin scale are scarce in the Betic Cordillera. Several GPS networks in Zafarraya (Galindo Zaldívar et al, ), Granada (Gil et al, ; Ruiz et al, ), Balanegra‐Almería (Marín‐Lechado et al, ), and the Baza Fault (implemented in 2010) have been episodically measured to better understand the present‐day deformation of the Central Betic Cordillera. In the Eastern Betic Cordillera, the CuaTeNeo GPS network (Echeverria et al, ) has provided very interesting results concerning the left‐lateral deformation of the EBSZ.…”

Section: Introductionmentioning

confidence: 99%

How Much Nubia‐Eurasia Convergence Is Accommodated by the NE End of the Eastern Betic Shear Zone (SE Spain)? Constraints From GPS Velocities

et al. 2019

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We present the first GPS‐derived geodetic observations from the NE end of the Eastern Betic Shear Zone obtained from the Bajo Segura GPS network (SE Spain). The network has 11 GPS sites and was sampled four times between 1999 and 2013. Despite the low signal‐to‐noise ratio of the residual velocities obtained, the velocities are nonzero at 95% confidence level. We postulate that the GPS data point to the partitioning of deformation into the NNW–SSE shortening and a N70E left‐lateral component. The maximum deformation rates are located along the two main active faults in the study area. The maximum shortening rates (north component) in the southern region of the Bajo Segura Basin vary from west to east, ranging from 0.2 to 0.7 mm/year along the Bajo Segura Fault Zone. On the northern border of the basin, along the Crevillente Fault Zone, left‐lateral displacement varies between 0.4 and 0.7 mm/year in the E‐W direction. The GPS‐based regional geodynamic models of the Western Mediterranean indicate that the residual shortening of the Eurasia‐Nubia plate convergence is accommodated in the eastern part of the Iberian Peninsula and the Algero‐Balearic Basin. Our results indicate that part of this residual deformation occurs at the NE end of the Eastern Betic Shear Zone, but significant deformation must be accommodated also to the north (External Betics) and to the south (Cartagena Basin and offshore area). We postulate that Eurasia‐Nubia plate convergence is transferred to the Eastern Betics because of the thin and rigid (potentially oceanic) crust of the Algero‐Balearic Basin, which acts as an indenter.

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Section: Introductionmentioning

confidence: 99%

How Much Nubia‐Eurasia Convergence Is Accommodated by the NE End of the Eastern Betic Shear Zone (SE Spain)? Constraints From GPS Velocities

et al. 2019

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“…These studies were applied to local sectors of the cordillera, using markers of different ages Ruiz et al, 2003;Silva et al, 2003;Zazo et al, 2003, among the more recent ones). The present paper takes a broad approach to the vertical uplift that occurred throughout the cordillera, using the Tortonian deposits as a marker in a similar way to the works of Braga et al (2003) and Martín et al (2003) in Sierra Nevada and in the SE of the Betic Cordillera.…”

Section: Introductionmentioning

confidence: 99%

Tectonic significance of the present relief of the Betic Cordillera

2004

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“…The Granada Basin, which is located in the centre of the Betic range, is one of these Neogene-Quaternary intramontane basins (Reicherter, 2001;Braga et al, 2003) and is one of the most seismically active zones of the Iberian Peninsula (Ruiz et al, 2003;Martín-Algarra et al, 2003). The sedimentary infill of the Granada Basin documents various NeogeneQuaternary tectonic and sedimentary phases.…”

Section: Geological and Geomorphological Settingmentioning

confidence: 99%

“…3). This formation is composed of alluvial fan deposits (Keller et al, 1996) and is covered by detritic sediments, of an alluvial nature, which date back to the Late Pleistocene (Ruiz et al, 2003). These sediments present many characteristics that are associated with processes arising from climatic change, which is highly representative of the Pleistocene.…”

Section: Geological and Geomorphological Settingmentioning

confidence: 99%

Locating hidden river courses via geo-technical investigation – application in the city of Granada, Spain

Pozo

Cremades

et al. 2005

Nat. Hazards Earth Syst. Sci.

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Abstract. The diversion of natural river courses and subsequent filling by alluvial deposits or anthropic intervention has been hidden by urban development in the majority of the cities. The research we conducted involved monitoring the evolution of a river course and reconnaissance of the original morphology of the fluvial systems. Our research was applied to the section of the River Beiro that flows through the city of Granada, Spain. The research has been carried out using geo-technical methodology based on reconnaissance via dynamic penetration. This allowed us to determine the different degrees of consolidation and compaction in the areas corresponding with the former course of the river, which are now filled by alluvial deposits. In addition, we have backed up our findings with information provided by historical maps of the city of Granada. The results have identified an area wherein buildings are at risk, as evidenced by the detrimental effects registered in the buildings in this area.

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Geodetic measurements of crustal deformation on NW–SE faults of the Betic Cordillera, southern Spain, 1999–2001

Cited by 25 publications

References 12 publications

How Much Nubia‐Eurasia Convergence Is Accommodated by the NE End of the Eastern Betic Shear Zone (SE Spain)? Constraints From GPS Velocities

How Much Nubia‐Eurasia Convergence Is Accommodated by the NE End of the Eastern Betic Shear Zone (SE Spain)? Constraints From GPS Velocities

Tectonic significance of the present relief of the Betic Cordillera

Locating hidden river courses via geo-technical investigation – application in the city of Granada, Spain

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