Coronavirus pandemic: An opportunity to study the anthropogenic impact on micro-climate conditions and CaCO3 crystal morphology in the Nerja Cave (SE Spain)
Metadatos
Mostrar el registro completo del ítemEditorial
Elsevier
Materia
Anthropogenic impact Carbon dioxide Carbonate precipitation COVID-19 Micro-organism Tourist cave
Fecha
2023-04-24Referencia bibliográfica
C. Liñán et al. Coronavirus pandemic: An opportunity to study the anthropogenic impact on micro-climate conditions and CaCO3 crystal morphology in the Nerja Cave (SE Spain). Science of the Total Environment 883 (2023) 163693. [http://dx.doi.org/10.1016/j.scitotenv.2023.163693]
Patrocinador
University of Malaga; Nerja Cave Foundation; Junta de Andalucia RNM-308, RNM-126; PID2021-125619OB-C21, PID2021-125619OB-C22, TED2021-130549B-I00, MCIN/AEI/10.13039/501100011033Resumen
Following the declaration of the COVID-19 pandemic, the Spanish Government restricted non-essential movements of
all citizens and closed all public spaces, such as the Nerja Cave, until May 31, 2020. This particular condition of the
closure of the cave provided a unique opportunity to study the micro-climate conditions and carbonate precipitation
in this tourist cave without the presence of visitors. Our results show the significant effect of visitors on the air isotopic
signature of the cave and on the genesis of the extensive dissolution features affecting the carbonate crystals formed in
the tourist sector of the cave, alerting us to the possible corrosion of the speleothems located there. The movement of
visitors within the cave also favours the mobilisation of aerial fungi and bacterial spores and their subsequent sedimentation simultaneously with the abiotic precipitation of carbonates from the drip water. The traces of these biotic elements could be the origin of the micro-perforations previously described in the carbonate crystals formed in the
tourist galleries of the cave, but they are subsequently enlarged due to abiotic dissolution of the carbonates through
these weaker zones.