A stable isotope study of cave seepage waters |
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| Institution: | 1. Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China;2. Key Laboratory of Clay Minerals of Ministry of Land and Resources of The People''s Republic of China, Zhejiang Institute of Geology and Mineral Resources, Hangzhou 310007, Zhejiang, China;3. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029 China;4. Australian Institute of Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4067, Australia;5. China National Bamboo Research Center, Hangzhou 310012, China;6. The Institute for Agriculture and the Environment, University of Southern Queensland, Toowoomba, Queensland 4350, Australia |
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| Abstract: | An isotope study (δ18O, δ2-H) of 62 samples of waters from both the interior of the Nerja cave (Málaga, Southern Spain) and the exterior sinkholes and springs at the site was carried out. Rainfall water in the study area was also studied. The mean value of seepage waters can be considered as the mean isotopic value of the precipitation waters of the area. The origin and aquifers of these different types of waters has also been studied, obtaining a clear meteoric origin both for the seepage waters and the waters from the wells and springs, but the aquifer of the latter is different, showing more negative isotopic values. This suggests that they could have mixed with waters from other aquifers which are either deeper or originate at other altitudes. |
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