Contribution of stable isotopes to the understanding of the unsaturated zone of a carbonate aquifer (Nerja Cave, southern Spain)

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• 作者：Francisco Carrasco ; Bartolomé ; Andreo ; Cristina Liñ ; á ; n ; Jacques Mudry
• 关键词：Stable isotopes ; Rainfall ; Unsaturated zone ; Drip water ; Carbonate aquifer ; Nerja ; Cave ; Southern Spain
  Mots-clé ; s ; Isotopes stables ; Pluie ; Zone non saturé ; e ; Eau de suintement ; Aquifè ; re carbonaté ; Grotte de Nerja ; S
• 刊名：Comptes Rendus Geoscience
• 出版年：2006
• 出版时间：December 2006
• 年：2006
• 卷：338
• 期：16
• 页码：1203-1212
• 全文大小：290 K

文摘

We analysed the stable isotopes (¹⁸O and ²H) of rainwater and drip water within a cave (Nerja Cave) located in the unsaturated zone of a carbonate aquifer. Rainfall is more abundant and presents lower isotopic content in winter, while the volume of drip water is greater and its isotopic content is lower in summer. The flow analysis of ¹⁸O through the unsaturated zone confirms the seasonal lag between rainfall and the appearance of drip water in the cave and reveals that the unsaturated zone of the aquifer, in the sector of the cave, behaves like an inertial system with a strong capability to modulate the input signal. To cite this article: F. Carrasco et al., C. R. Geoscience 338 (2006).