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Sinkholes, hydrogeology, and ground-water quality in northeast Iowa




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Solution Mining and the Protection of Karst Groundwater Supplies in Burton Flats, Southeast New Mexico, USA




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Spring 2009 potentiometric map of the Middle Trinity Aquifer in groundwater management area 9, central Texas




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Summary of 2005 groundwater dye tracing, Barton Springs segment of the Edwards Aquifer, Hays and Travis Counties, Central Texas




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Summary of groundwater dye tracing studies (1996-2002), Barton Springs segment of the Edwards Aquifer, Texas




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Summary of information for assessing the status of the Tooth Cave Ground Beetle (Rhadine persephone)




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The role of sulfate-rich springs and groundwater in the formation of sinkholes over gypsum in eastern England




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Underground Florida: a fieldtrip guidebook of the west central Florida karst




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Carved Stone Fragment on the Ground




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The Contextual Web: A background of intersecting historical and journalistic strands




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Young Wild West's leap in the dark, or, Arietta and the underground stream




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Quantity and location of groundwater recharge in the Sacramento Mountains, south-central New Mexico (USA), and their relation to the adjacent Roswell Artesian Basin




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Evaluation of groundwater residence time in a high mountain aquifer system (Sacramento Mountains, USA): insights gained from use of multiple environmental tracers




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Groundwater flow in an ‘underfit’ carbonate aquifer in a semiarid climate: application of environmental tracers to the Salt Basin, New Mexico (USA)




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The hydrochemical assessment of groundwater resources in the Kadkan basin, Northeast of Iran




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Geochemical and statistical evaluation of groundwater in Razan basin, Western Iran




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Up high and down low: Molecular systematics and insight into the diversification of the ground beetle genus Rhadine LeConte




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Focused groundwater flow in a carbonate aquifer in a semi-arid environment




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Interaction between groundwater and seawater in the coastal aquifer of Cap-Bon in the semi-arid systems (north-east of Tunisia)




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Hydrogeochemical and isotope evidence of groundwater evolution in El Guettar Oasis area, Southwest Tunisia




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Laboratory simulation of groundwater hydraulic head in a karst aquifer system with conduit and fracture domains




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Using isotopic, hydrogeochemical-tracer and temperature data to characterize recharge and flow paths in a complex karst groundwater flow system in northern China




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Improved regional groundwater flow modeling using drainage features: a case study of the central northern karst aquifer system of Puerto




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Basin-scale conceptual groundwater flow model for an unconfined and confined thick carbonate region




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Flint Creek with background housing




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Lake Park playground




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Lake Park playground and signage




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Bats swarm where they hibernate: compositional similarity between autumn swarming and winter hibernation assemblages at five underground sites




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Black Vulture on the Ground




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Black Vultures on the Ground




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General View Of Parade Ground From Terreplein Fort Jefferson Dry Tortugas Oct 1956 Looking Northeast




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Old Buttonwood Tree In Parade Ground Fort Jefferson Dry Tortugas Oct 1956




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General View Of Parade Ground From Terreplein Fort Jefferson Dry Tortugas Oct 1956




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General View Of Parade Ground From Terreplein Looking South Fort Jefferson Dry Tortugas Oct 1956




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Monument In Parade Ground Fort Jefferson Dry Tortugas Oct 1956




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Map of Florida Showing the Areas in Northern and Central Florida in which Ground-Water Supplies are Contaminated with Salty Water




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Notched, flaked and ground bone artefacts from Middle Stone Age and Iron Age layers of Sibudu Cave, KwaZulu-Natal, South Africa : Sibudu Cave




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The Liberty Boys' underground camp, or, In strange quarters




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The Liberty Boys and the fighting Quaker, or, In the neutral ground




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Surface impoundments and their effects on ground-water quality in the United States




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Carbon dioxide, ground air and carbon cycling in Gibraltar karst




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Hypogenic karst at the Arabian platform margins: Implications for far-field groundwater systems




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Hypogenic karst at the Arabian platform margins: Implications for far-field groundwater systems




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Cross-formational rising groundwater at an artesian karstic basin: the Ayalon Saline Anomaly, Israel




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Regional-scale analysis of karst underground flow deduced from tracing experiments: examples from carbonate aquifers in Malaga province, southern Spain




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A multi-method approach for groundwater resource assessment in coastal carbonate (karst) aquifers: the case study of Sierra Almijara (southern Spain)




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Hydrochemical constraints between the karst Tabular Middle Atlas Causses and the Saïs basin (Morocco): implications of groundwater circulation




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In-stream metabolism and atmospheric carbon sequestration in a groundwater-fed karst stream




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Southern African Humanities - Sibudu Cave : background to the excavations, stratigraphy and dating




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Self-Organization of Sorted Patterned Ground