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Hernando D.; Romana M.g.AuthorRomana M.AuthorLomoschitz Mora-Figueroa, AlejandroAuthorGalindo Aires, Ruben AngelCorresponding AuthorThe Pico de Navas slump (Burgos, Spain): a large rocky landslide caused by underlying clayey sand
Publicated to:Journal Of Iberian Geology. 42 (1): 55-68 - 2016-01-01 42(1), DOI: 10.5209/rev_JIGE.2016.v42.n1.49120
Authors: Sanz-Perez, E.; Menendez-Pidal, I.; Lomoschitz, A.; Galindo-Aires, R.;
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Abstract
The Pico de Navas landslide was a large-magnitude rotational movement, affecting 50x106m3 of hard to soft rocks. The objectives of this study were: (1) to characterize the landslide in terms of geology, geomorphological features and geotechnical parameters; and (2) to obtain an adequate geomechanical model to comprehensively explain its rupture, considering topographic, hydro-geological and geomechanical conditions. The rupture surface crossed, from top to bottom: (a) more than 200 m of limestone and clay units of the Upper Cretaceous, affected by faults; and (b) the Albian unit of Utrillas facies composed of silty sand with clay (Kaolinite) of the Lower Cretaceous. This sand played an important role in the basal failure of the slide due to the influence of fine particles (silt and clay), which comprised on average more than 70% of the sand, and the high content presence of kaolinite (>40%) in some beds. Its microstructure consists of accumulations of kaolinite crystals stuck to terrigenous grains, making clayey peds. We hypothesize that the presence of these aggregates was the internal cause of fluidification of this layer once wet. Besides the faulted structure of the massif, was an important factor for the occurred landslide. Other conditioning factors of the movement were: the large load of the upper limestone layers; high water table levels; high water pore pressure; and the loss of strength due to wet conditions. The numerical simulation of the stability conditions concurs with our hypothesis. The landslide occurred in the Recent or Middle Holocene, certainly before at least 500 BC and possibly during a wet climate period. Today, it appears to be inactive. Due to mineralogical features of involved material, facies Utrillas, in the landslide, the study helps to understand the frequent slope instabilities all along the Iberian Range where this facies is present..
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Quality index
Bibliometric impact. Analysis of the contribution and dissemination channel
The work has been published in the journal Journal Of Iberian Geology due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2016, it was in position 15/47, thus managing to position itself as a Q2 (Segundo Cuartil), in the category Geology. Notably, the journal is positioned en el Cuartil Q2 para la agencia Scopus (SJR) en la categoría Geology.
From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 1.72, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jun 2025)
Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-06-01, the following number of citations:
- WoS: 2
- Scopus: 15
- Google Scholar: 12
- OpenCitations: 14
Impact and social visibility
Leadership analysis of institutional authors
There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (SANZ PEREZ, EUGENIO) and Last Author (GALINDO AIRES, RUBEN ANGEL).
the author responsible for correspondence tasks has been GALINDO AIRES, RUBEN ANGEL.