Instituto Geológico y Minero de España

Hydrochemical Evidence of Groundwater Transfer Between Karst Aquifers in Southern Spain: Implications for Climate Resilience and Groundwater-Dependent Ecosystems

The Upper Cretaceous and Jurassic karst aquifers of Sierra de Segura (southern Spain) represent an important groundwater resource within Sierras de Cazorla, Segura, and Las Villas Natural Park (the largest protected area in Spain). The two carbonate aquifer systems are separated...

Myrsine fossil pollen from the Oligocene of Iberia provides evidence for early Eurasian dispersal

The Cenozoic fossil record of Myrsine (Primulaceae) in Europe is largely based on leaf macroremains of uncertain taxonomical attribution and consequently remains poorly understood. In this study, we report the first well-documented European fossil pollen record attributable to ea...

Probabilistic and Deterministic Seismic Hazard Assessments of the area comprised between west Gulf of Cádiz and east Alboran Sea

Abstract. The increased deployment of subsea infrastructures and the exploration of marine resources have heightened the need to assess seismic hazard on the seabed, especially in tectonically active offshore regions. The area between the Gulf of Cádiz and the Alboran Sea, which...

Fault-controlled fluid migration and cold seep distribution in the offshore Talara and Tumbes basins, NW Peruvian Margin

Cold seeps along convergent margins provide key insights into subsurface fluid migration and active petroleum systems, yet the structural controls governing their distribution remain poorly constrained in forearc basins. This study investigates the morphostructural framework cont...

Vulnerable microbial communities in Atacama-Altiplano wetlands: modern analogs of ancient ecosystems with implications for sustainability and conservation

Abstract The Altiplano-Puna plateau lies at ∼4,000 m above sea level in the volcanic Andes cordillera. Together with the adjacent Atacama Desert, it forms one of the most hyperarid regions on the planet. Wetlands are rare, influenced by hydrothermalism and, due to high evaporatio...

Assessment of vulnerability to groundwater contamination in the Santa Rosa River basin, Ecuador

Groundwater is a vital resource that supplies nearly half of the world’s population and sustains ecosystem integrity. In the Santa Rosa River basin (SW Ecuador), groundwater plays an essential role due to the variable quality of surface water resources. This study assessed ground...