000169915 001__ 169915
000169915 005__ 20260306154908.0
000169915 0247_ $$2doi$$a10.1016/j.geomorph.2026.110228
000169915 0248_ $$2sideral$$a148436
000169915 037__ $$aART-2026-148436
000169915 041__ $$aeng
000169915 100__ $$0(orcid)0000-0002-6607-2395$$aPérez-Villar, Guillermo$$uUniversidad de Zaragoza
000169915 245__ $$aErosion rates in rock salt exposures with diverse karren monitored by erosion pins, close-range photogrammetry and terrestrial laser scanner
000169915 260__ $$c2026
000169915 5060_ $$aAccess copy available to the general public$$fUnrestricted
000169915 5203_ $$aPublished data on solutional erosion in rock salt exposures are scarce, hindering our ability to understand the evolution of emergent salt diapirs with a number of practical implications (e.g. long-term geostorage). The Bofia Gran karst depression at the actively rising Cardona salt diapir (NE Spain) has been used as a test site to assess chemical erosion on a salt outcrop with a wide diversity of karren. Denudation measurements obtained by using erosion pins, terrestrial laser scanner (TLS) and ground-based photogrammetry consistently indicate a robust relationship between rainfall and slope-normal erosion, with an average value of around 10 mm per 100 mm rainfall. The significant variability observed in the surface-normal erosion is mainly controlled by slope gradient and karren micro-topography. Surface-normal erosion increases linearly as the slope declines and the surface area that interacts with rainfall decreases. The comparison of high-resolution point clouds shows that the range of erosion values across specific karren increases with their complexity, with extreme situations found in planar solution bevels and rugged solution flutes. The empirical relationships between slope-normal erosion and both rainfall and slope can be used to model geomorphic evolution in rock salt exposures, as illustrated with the case of the Bofia Gran, where diapiric uplift overwhelms chemical erosion. The experience gained in this investigation suggests that photogrammetry using a conventional camera can be more effective than TLS for assessing erosion in areas on the order of square meters. It also illustrates the benefits of using erosion values normalized to precipitation to enable worldwide comparisons.
000169915 536__ $$9info:eu-repo/grantAgreement/ES/AEI/PID2021-123189NB-I00$$9info:eu-repo/grantAgreement/ES/MICINN PRE2022-101600
000169915 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttps://creativecommons.org/licenses/by-nc/4.0/deed.es
000169915 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000169915 700__ $$0(orcid)0000-0002-5407-940X$$aGutiérrez, Francisco$$uUniversidad de Zaragoza
000169915 700__ $$aBenito-Calvo, Alfonso
000169915 700__ $$aRoqué, Carles
000169915 7102_ $$12000$$2427$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Geodinámica Externa
000169915 773__ $$g500 (2026), 110228 [14 pp.]$$pGeomorphology$$tGEOMORPHOLOGY$$x0169-555X
000169915 8564_ $$s18519638$$uhttps://zaguan.unizar.es/record/169915/files/texto_completo.pdf$$yVersión publicada
000169915 8564_ $$s2576874$$uhttps://zaguan.unizar.es/record/169915/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000169915 909CO $$ooai:zaguan.unizar.es:169915$$particulos$$pdriver
000169915 951__ $$a2026-03-06-14:50:24
000169915 980__ $$aARTICLE