NDLI: Water Resources Assessment and Hydrogeological Modelling as a Tool for the Feasibility Study of a Closure Plan for an Open Pit Mine (La Respina Mine, Spain)

Content Provider	Springer Nature Link
Author	Sena, Clara Molinero, Jorge
Copyright Year	2009
Abstract	The La Respina mine is an open pit for talc extraction located in a mountainous range of NW Spain. The closure plan foresees the construction of an artificial lake in the void left by the open pit. The open pit is 600 m long by 300 m wide, and has a maximum depth of about 100 m. Karstic springs hydraulically connected to the mine are located down-gradient of the open pit. It is planned that the future lake will be filled using the natural water resources available in the watershed. These water resources have been evaluated by means of a daily-based, lumped hydrologic balance model. The comparison between computed ground water discharges and the flow rates measured at La Respina Springs provide supportive evidence that it is a sound and reliable model. The outputs of the lumped hydrologic balance model have been used as boundary conditions for a finite element hydrogeologic numerical model of the aquifer. By combining the results of both models, a net inflow to the future lake between 2.87 and 3.25 Mm$^{3}$/year has been predicted. The future lake will induce the water table to rise and therefore, the base flow of the karstic springs is expected to increase.
Starting Page	94
Ending Page	101
Page Count	8
File Format	PDF
ISSN	10259112
Journal	Mine Water and the Environment
Volume Number	28
Issue Number	2
e-ISSN	16161068
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-02-27
Publisher Institution	International Mine Water Association (IMWA)
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Artificial lake Hydrogeological modelling La Respina mine Water resources assessment Ecotoxicology Energy Economics Sedimentology Hydrogeology Geology
Content Type	Text
Resource Type	Article
Subject	Water Science and Technology Geotechnical Engineering and Engineering Geology

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