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Groundwater at the Azores archipelago is a strategic resource for the freshwater supply. Freshwater, mineral and thermal water discharges occur in the archipelago, and especially at the Fogo and Furnas volcanoes (So Miguel). These discharges provide data for case studies of groundwater chemistry from volcanic monitoring due to the stable composition of the sampled waters. The mineral and thermal discharges...
Abstract. Pico, the youngest island of the Azores archipelago, is composed of basaltic volcanic deposits less than 300,000years old. The principal aquifer system consists mainly of recent lava flows that are very permeable and whose head is influenced by tidal fluctuations. Groundwater abstraction is almost entirely by drilled wells. The hydraulic gradient is very low, about 104, which agrees with...
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