Introduction: The Iberian Pyritic Belt (IPB) consists of a 250-km long geological unit included into the South-Portuguese geotectonical zone of the Iberian Peninsula. It is comprised by an acid volcanosedimentary complex ranging in age from upper Devonian to Carboniferous where different metallic ores were formed in response to hydrotermalism and tectonic related to the Variscan Orogeny [1, 2]....

in this work, studies of underground gas storage (ugs) were performed on a partially depleted, naturally fractured gas reservoir through compositional simulation. reservoir dynamic model was calibrated by history matching of about 20 years of researvoir production. effects of fracture parameters, i.e. fracture shape factor, fracture permeability and porosity were studied. results showed that di...

We present a case of a 33-year-old female with a slow growing, right peribronchial vascular mass and associated symptoms of progressive cough, dyspnea on exertion, and hemoptysis. On routine diagnostic flexible bronchoscopy with needle biopsy, the lesion hemorrhaged extensively requiring emergent thoracotomy, right lower and middle bilobectomy. The histopathology of the specimen was consistent ...

Groundwater in a coastal sand aquifer is enriched in arsenic as a result of historical discharges from an industrial facility on the central NSW coast. Subsequent investigations also identified arsenic in the soil within the saturated zone down-gradient of the source area. Arsenic concentrations in soil and groundwater decrease markedly along a narrow flow path towards a tidal river some 300 m ...

The unmanaged groundwater extraction and inadequate aquifer recharge is the major cause of groundwater depletion in different parts of the world. In this study, the groundwater flow system of Mahvelat-Feizabad aquifer (NE of Iran) has been numerically simulated using MODFLOW code in the GMS interface. The model, primarily, calibrated for steady state condition for the mean hydraulic values of o...

We propose a hydrodynamic simulation model to understand the piezometric operation of Celaya Valley aquifer. The aquifer is located at east Guanajuato State in México. Our proposed reproduces, under transitory conditions, performance during dry season from year 2015 2019 and rainy 2010 2015. was projected for two seasons up eleven years ahead considering only three scenarios (one should bear mi...

Abstract—Adequate and reliable estimates of aquifer parameters are of utmost importance for proper management of vital groundwater resources. At present scenario, the ground water is polluted because of industrial waste disposed over the land and the contaminants are transported in the aquifer from one area to another area, which is depending on the characteristics of the aquifer and contaminan...

One interesting hydrogeological feature of the small (less than 4 km) Almuñécar alluvial aquifer -andalusian mediterranean coast, Spainis related to its seasonal intrusion-extrusion cycles. This is thought to be a consequence of the coarse and clean nature of the sediments and the correspondent high values of hydraulic conductivity (around 500 m/day). The recharge (14 hm/y as an average) comes ...

The water balance calculation and water quality are very important matters in the groundwater management. The water balance includes two parameters: input and output parameters. The input parameter is consisted from surface recharge (precipitation, irrigation return water, surfaces runoff recharge) and underground inflow (flow from adjacent aquifers). The underground inflow is an important fact...