Karst landscapes are a set of various features built rocks that soluble in water [...]

Karst systems consist of heterogeneous aquifers characterized by non-linear hydrogeological behavior. This is intrinsically linked to the coexistence saturated versus unsaturated, open-channel closed-conduit flow and laminar turbulent flows within these aquifers. These multiple dualities together with a lack knowledge their internal structure lead increasing difficulties in management groundwat...

Abstract Shallow alluvial and karst aquifers widespread inadequate sanitation practices combine to impact water resources in Haiti. The vulnerability of is complicated by complex cultural, ecological, geological, hydrological, hydrogeological considerations. Roughly 84% the rocks exposed Haiti consist calcareous alluvium. These lithologies serve as an efficient reservoir transport mechanism for...

vulnerability and contamination risk assessment is of great importance in karst aquifer management. because of vastness of karst in zagros, natural conditions and human activity within the region of aquifer, pollution emission has become one of the most important challenges in front of zagros aquifers. the purpose of this study is to assess marab aquifer vulnerability, using riske model and, de...

Tunisia is rich in geothermal resources from ancient civilizations. Hydrothermal activity in Tunisia has been related to three main stages: magmatic and tectonic activities, eustatisme (Atlantic and Mediterranean coupling) and climate change. The principal factor and the responsable of this phenomenon is the meteoric water by piston flow processes. It constitue the catalyst of volcanism. The Tr...

Understanding the complex structure of karst networks is a challenge. In this work, we characterize the fractal properties of some of the largest coastal karst network systems in the world. They are located near the town of Tulum (Quintana Roo, Mexico). Their fractal dimension df , conductivity exponent μ̃ and walk dimension dw are estimated using real space renormalization and numerical simulat...

Gypsum karst problems in the Permian and Triassic sequences of England have caused difficult conditions for bridge and road construction. In Northern England, the Ripon Bypass crosses Permian strata affected by active gypsum karst and severe subsidence problems. Here, the initial borehole site investigation for the road was supplemented by resistivity tomography studies. The roadway was reinfor...

Important karstic aquifers exist in west and southwest of Iran. Mansour-Abad Karstic region is located in Shiraz, southwest of Iran. It supplies the drinking water for the whole area by 4 pumping water wells, some of which have water turbidity problem. The present research aims to assess the hydrogeochemistry and turbidity problem in the karstic water production wells. The EC varies between 703...