نتایج جستجو برای: karstic water

تعداد نتایج: 551116  

Journal: :Energies 2022

Fractured karstic carbonate reservoirs have obvious multi-scale characteristics and severe heterogeneity due to the development of abundant karst caves fractures with different scales. Darcy non-Darcy flows coexist this property. Therefore, selecting appropriate flow equations for regions in numerical simulation fluid flows, particularly two-phase multiphase is a critical topic. This paper comp...

2015
KORALJKA KRALJ BOROJEVIĆ DUBRAVKA HAFNER

This study presents investigations of the periphytic diatoms on artifi cial (glass slides) and natural substrates in the karstic, limnocrene spring of Bunica situated in the south of Bosnia and Herzegovina. Investigations were performed in summer 2010. Samples were collected every seven days for eight weeks. Physical and chemical characteristics of water, temperature, oxygen saturation, dissolv...

Journal: :Journal of Environmental Management 2022

Managed aquifer recharge (MAR) offers a promising strategic management alternative for water storage and subsequent recovery to alleviate shortage protect coastal aquifers from saltwater intrusion. Selecting potentially suitable sites remains challenging, particularly in heterogeneous karst systems. In this study, MAR site suitability is examined using new geospatial approach that accounts rech...

There are about 200 salt plugs in the southern part of the Zagros Mountain Ranges and the Persian Gulf in Iran (Kent, 1970). The salt comes from the Hormuz salt Formation at the base of the Phanerozoic zone. It moves upward due to the buoyancy, the latteral pressure resulting from the opening of the Red Sea to the southwest, and the weight of several thousand meters of overlying sediments. It m...

2014
Faquan Wu Shengwen Qi

This paper explains a procedure for the choice of ballast modules used for the design of direct continuous foundation in karst terrain. The presence of dangerous cavities is introduced in this procedure thereby evaluating risk failure. It also provides pertinent guidelines to direct the geotechnical survey of the terrain. Chimneys: both the low points in the folds as well as the softened clay c...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1392

gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...

Journal: :Geological Society, London, Special Publications 2022

Abstract The Upper Cretaceous Chalk Group is renowned as a major aquifer, but the development of secondary porosity due to karstic conduits poorly understood. Hydrogeological data and evidence from boreholes, sections, tracer tests indicate that dissolutional occur throughout aquifer. Here, we assess for karst, combine it with theoretical models dissolution cave formation produce conceptual mod...

Vulnerability assessment and mapping of hazard pollution is raised on as an important management strategy to protect the karst. Karstic aquifers in semi-arid regions of the West of Iran with regard to the natural conditions of the region, are susceptible to contamination. Estimation of amount and vulnerability mapping of aquifers in the karst religion of Bistoun- Paraw – Kermanshah plain agains...

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