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Benjamin W. Tobin, Benjamin V. Miller, Matthew L. Niemiller and Andrea M. Erhardt
Karst aquifers are unique among groundwater systems because of variable permeability and flow-path organization changes resulting from dissolution processes. Over time, changes in flow-path connectivity complicate interpretations of conduit network evolu...
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Jing Li, Fan Song, Zhicheng Bao, Hongxiang Fan and Huawu Wu
Stable isotopes of lake waters are widely used to identify the relative importance of hydrological processes on the lake water balance across the ungauged landscape via the coupled-isotope tracer model. The isotopic compositions of twenty shallow freshwa...
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Greg A. Ludvigson, Aaron F. Diefendorf, Marina B. Suarez, Luis A. González, Megan C. Corcoran, Kristen Schlanser, Peter P. Flaig, Paul J. McCarthy, Dolores van der Kolk, David Houseknecht and Margaret Sanders
We report estimated stable isotope compositions of depositional waters and paleoprecipitation from the Cretaceous Arctic to further elucidate the role of the global hydrologic cycle in sustaining polar warmth during that period. Estimates are based on ne...
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Andrés Rodríguez-Seijo, Knut Endre Sjåstad and Vladislav Chrastný
Lead isotopes have been widely used to assess the sources of Pb in the soil environment since lead isotopes ratios have a specific signature that allows us to use them as environmental tracers. However, some lead sources are difficult to be identified. T...
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Khahliso Leketa and Tamiru Abiye
Environmental isotope tracers were applied in the Upper Crocodile River Basin, Johannesburg, South Africa, to understand the groundwater recharge conditions, flow mechanisms and interactions between surface and subsurface water. Stable isotope analysis i...
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Silvia Iacurto, Gerardo Grelle, Francesco Maria De Filippi and Giuseppe Sappa
Karst aquifer recharge areas are usually difficult to identify because of the complexity of these aquifers? characteristics. On the other hand, their identification is very important in the aim of protecting the groundwater resources that these aquifers ...
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?eljka Brkic, Mladen Kuhta, Tamara Hunjak and Ozren Larva
Tracer methods are useful for investigating groundwater travel times and recharge rates and analysing impacts on groundwater quality. The most frequently used tracers are stable isotopes and tritium. Stable isotopes of oxygen (d18O) and hydrogen (d2H) ar...
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Leja Rovan, Sonja Lojen, Tea Zuliani, Tja?a Kanduc, Metka Petric, Barbara Horvat, Simon Rusjan and Marko ?trok
The karst aquifer of the Ljubljanica River catchment, which has numerous springs and sinks, presents an interesting environment for studying hydrogeological processes. This study aims to explore the behavior of U isotopes and to evaluate their use as tra...
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Eva Leu, Thomas A. Brown, Martin Graeve, Jozef Wiktor, Clara J. M. Hoppe, Melissa Chierici, Agneta Fransson, Sander Verbiest, Ane C. Kvernvik and Michael J. Greenacre
Assessing the relative importance of sea ice algal-based production is often vital for studies about climate change impacts on Arctic marine ecosystems. Several types of lipid biomarkers and stable isotope ratios are widely used for tracing sea ic-associ...
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Valle Raidla, Joonas Pärn, Werner Aeschbach, György Czuppon, Jüri Ivask, Madis Kiisk, Robert Mokrik, Vytautas Samalavicius, Siiri Suursoo, Siim Tarros and Therese Weissbach
The Viimsi peninsula is located north-east of Tallinn, capital of Estonia. The Cambrian-Vendian (Cm-V) aquifer system is a sole source of drinking water in the area. Historically, the groundwater exploitation has led to freshening of groundwater in the p...
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