Some applications of geochemical and isotopic techniques to hydrogeology of the caves after research in two sites (Nerja Cave-S Spain and Fourbanne system-French Jura)

Mudry, Jacques; Andreo, Bartolomé; Charmoille, Arnaud; Liñán, C.; Carrasco, Francisco

doi:10.5038/1827-806x.37.1.6

Cited by 9 publications

(6 citation statements)

References 23 publications

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“…At Golgotha Cave, the collection of drip logger data is ongoing, as well as analysis of tracers of water movement such as stable isotopes. These data will be the focus of future research to expand the possibility of classifying geochemical properties of drip regimes covering large-scale observation, and even describing the hydrodynamic response of the unsaturated zone in the cave (Carrasco et al, 2006;Blondel et al, 2010;Mudry et al, 2008).…”

Section: Resultsmentioning

confidence: 99%

“…Many traditional methods developed for modelling groundwater flow regimes in highly heterogeneous karstic aquifers are focussed on the faster drainage components, i.e. conduits and channels (Morales et al, 2010(Morales et al, , 2007Pardo-Iguzquiza et al, 2011;Smith et al, 2012;Ford and Williams, 2007;Goldscheider and Drew, 2007). However, these methods are less suitable in characterizing water movement through the smaller fracture or matrix flow components of the unsaturated zone, lacking vital information relevant to the complete understanding of flow through fractured rocks.…”

Section: Introductionmentioning

confidence: 99%

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Estimation of deep infiltration in unsaturated limestone environments using cave lidar and drip count data

Mahmud¹,

Mariethoz

Baker³

et al. 2016

Hydrol. Earth Syst. Sci.

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Abstract. Limestone aeolianites constitute karstic aquifers covering much of the western and southern Australian coastal fringe. They are a key groundwater resource for a range of industries such as winery and tourism, and provide important ecosystem services such as habitat for stygofauna. Moreover, recharge estimation is important for understanding the water cycle, for contaminant transport, for water management, and for stalagmite-based paleoclimate reconstructions. Caves offer a natural inception point to observe both the long-term groundwater recharge and the preferential movement of water through the unsaturated zone of such limestone. With the availability of automated drip rate logging systems and remote sensing techniques, it is now possible to deploy the combination of these methods for largerscale studies of infiltration processes within a cave. In this study, we utilize a spatial survey of automated cave drip monitoring in two large chambers of Golgotha Cave, southwestern Western Australia (SWWA), with the aim of better understanding infiltration water movement and the relationship between infiltration, stalactite morphology, and unsaturated zone recharge. By applying morphological analysis of ceiling features from Terrestrial LiDAR (T-LiDAR) data, coupled with drip time series and climate data from 2012 to 2014, we demonstrate the nature of the relationships between infiltration through fractures in the limestone and unsaturated zone recharge. Similarities between drip rate time series are interpreted in terms of flow patterns, cave chamber morphology, and lithology. Moreover, we develop a new technique to estimate recharge in large-scale caves, engaging flow classification to determine the cave ceiling area covered by each flow category and drip data for the entire observation period, to calculate the total volume of cave discharge. This new technique can be applied to other cave sites to identify highly focussed areas of recharge and can help to better estimate the total recharge volume.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Estimation of deep infiltration in unsaturated limestone environments using cave lidar and drip count data

Mahmud¹,

Mariethoz

Baker³

et al. 2016

Hydrol. Earth Syst. Sci.

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“…Later on, the hydrogeological part is analyzed. The caves with waters and the springs can be used as study sites for measuring parameters such as discharges (Q), electrical conductivity (EC) and temperature (T) (Banzato et al 2011;Mudry et al 2008;Hershey et al 2010;Galleani et al 2011). The hydrographical and chemographical analyses allow an understanding of the system's response to rainfall events, allowing distinctions to be made between the main potential karst types: the dominant conduit system, any interconnected conduits and the dispersed circulation (Vigna 2002) each one exhibiting a well-defined and typical hydraulic behavior (Linan Baena et al 2009;Fiorillo 2014).…”

Section: Methodological Approachmentioning

confidence: 99%

The challenge of tunneling through Mediterranean karst aquifers: the case study of Trieste (Italy)

2015

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After the 1st May 2004, when new countries\ud joined the European Union, the need was felt to link these\ud states through an infrastructure network of motorway and\ud railway links (high speed—HS/high capacity—HC) easily\ud able to transport all possible goods throughout Europe.\ud Within this framework, 14 different projects were developed\ud with the aim of linking important cities. One of these\ud links is the Corridor V connecting Lisbon (Portugal) to\ud Kiev (Ukraine) and assigning a strategic role to Italy with\ud respect to the integration process of these countries. In\ud detail, part of the Corridor V is expected to start from\ud Venice, reaching Trieste and from here on to Ljubljana\ud (Slovenia) before proceeding to Budapest and finally\ud reaching Kiev in Ukraine. The whole development (from\ud Portugal to Ukraine) is approximately 4,000 km long of\ud which, about 30 km (less than 1 % of the entire route), falls\ud within the Italian Classical Karst area, a highly karstified\ud zone, renowned worldwide as one of the best karst landscapes\ud on the planet. The present paper regards the GIS\ud statistical methodological approach used to identify the\ud degree of karstification of the Italian Classical Karst providing\ud the stakeholders all the necessary information while\ud planning possible railway HS/HC solutions

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“…Changes in chemical and environmental isotope composition due to surface water seepage into stratums provide abundant information (Käss 1998;Kendall and McDonnel 1998;Kendall and Doctor 2004;Plata and Araguas 2002;Mudry et al 2008). In many cases, leakage passages in dam foundations can be detected by analyzing the hydrochemistry and stable isotopes of groundwater in boreholes or springs (Peng and Wang 2008).…”

Section: Introductionmentioning

confidence: 98%

Hydrochemical response of a fractured carbonate aquifer to stress variations: application to leakage detection of the Vouglans arch dam lake (Jura, France)

et al. 2015

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Leakage detection and the prediction of the behavior of fractured rocks subjected to variations in hydrostatic pressure are important issues in hydropower engineering. Some large water reservoirs are constructed in karstic carbonate areas. In order to understand underground circulation in the limestone/dolomite foundation of the Vouglans dam (Jura, France), groundwater chemistry analysis, according to geological conditions, is used. Statistical analyses (PCA and DFA) are carried out: (1) to accurately characterize the contrast in chemical composition resulting from the interaction between surface and groundwater in a poorly contrasted environment, due to the shared carbonated context, and (2) to reassign individuals into homogeneous groups with respect to the variables studied. PHREEQC is used to determine the potential for the precipitation of secondary minerals from the water chemistry mainly in order to determine the geochemical control of clogging. Three types of hydrodynamic behavior were identified in the sector. The origin and transfer time of inflows vary with respect to seasons. The area of influence of the rapid transit of the lake water varies predominantly in response to changes in the lake water level. The hydrostatic pressure of the water column influences the opening and closing of cracks at the bottom of the dam. Drains intercepting an upstream fissure are highlighted by hydrochemical measurements. Inflows are oversaturated with respect to calcite and are thus likely to precipitate this mineral. Zones with a strong clogging capacity correspond to the zones with slow transit groundwater.

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Some applications of geochemical and isotopic techniques to hydrogeology of the caves after research in two sites (Nerja Cave-S Spain and Fourbanne system-French Jura)

Cited by 9 publications

References 23 publications

Estimation of deep infiltration in unsaturated limestone environments using cave lidar and drip count data

Estimation of deep infiltration in unsaturated limestone environments using cave lidar and drip count data

The challenge of tunneling through Mediterranean karst aquifers: the case study of Trieste (Italy)

Hydrochemical response of a fractured carbonate aquifer to stress variations: application to leakage detection of the Vouglans arch dam lake (Jura, France)

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