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Groundwater mining in arid and hyper-arid conditions: some reflections from Africa and South America.
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Groundwater mining in arid and hyper-arid conditions: some reflections from Africa and South America.

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Groundwater mining in arid and hyper-arid conditions: some reflections from Africa and South America. J. Molinero, AMPHOS SL. International Annual UN-Water Zaragoza Conference 2012/2013. Preparing for ...

Groundwater mining in arid and hyper-arid conditions: some reflections from Africa and South America. J. Molinero, AMPHOS SL. International Annual UN-Water Zaragoza Conference 2012/2013. Preparing for the 2013 International Year. Water Cooperation: Making it Happen! 8-10 January 2013

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  • 1. Groundwater mining:Some reflections from Africa and SouthAmericaJorge Molinero January 2013
  • 2. Contents1. Introduction2. Andean zone3. Sahara zone4. Some reflexions
  • 3. Geographic distribution of water resources
  • 4. Arid Andean Zone – Hydrogeologic frameworkGali & Dingman (1962) in Magaritz et al. (1990): How to propagateerrors along the time…
  • 5. ANALÍTICA 2001 y 2004 CORTE GEOLÓGICO (militar), Escuela de mutilados de guerra y proyeco avícola COMENTARIOS CONSTRUCCIÓN 2 bombas: 1 sumergible y una de aspiración. 1950 Supuestamente aquí hay una gran bolsa deSaharian Zone: Hyper-arid agua. En teoría es para la agricultura pero en el huerto la beben. Bombea 4 horas por la GEOLOGÍA mañana (año 2004 11h/día. El nivel estaba a +1.5 m y no bajaba de -2 m) Agriculture Drinking water supply
  • 6. Saharian Zone: Hyper-aridMine Dewatering Mineral Processing
  • 7. This is an (endorreic) Basin in the “High Cordillera”
  • 8. This is the “Pampa” (Hyper-arid valley) High cordillera Groundwater discharge
  • 9. Groundwater discharge
  • 10. Water consumption by mining industry in Chile 500,000.0 ton/y x2 10 mm  100 Km2 Is that sustainable ?
  • 11. Some reflections• Extensive groundwater resources available in hyper- arid regions.• Growing population (improving living conditions and development)• Increasing agriculture (good conditions for high value crops)• “Boom” of mining activity (steady increase of metals’ price by demand in emerging economy)• Conflicts (low level) between different users already exist and could be expected to increase• A need of water management models/doctrines specific for arid an hyper arid environments. Traditional or “modern” water management paradigms are not valid here!
  • 12. ESPAÑAAMPHOS 21 CONSULTING, S.L.Paseo de García Faria, 49-5108019 BARCELONATel.: +34 93 583 05 00; Fax : +34 93 307 59 28CHILEAMPHOS 21 CONSULTING CHILE Ltda.San Sebastián 2839, of. 701-ALas Condes, 7550180 SANTIAGO DE CHILETel.: +56 2 7991630PERÚ THANKS!AMPHOS 21 CONSULTING PERU, S.A.C.Av. del Parque Sur 661, San BorjaLima 41Tel.: +511 592-1275FRANCEAMPHOS 21 CONSULTING FRANCE SARL14 Avenue de l’Opéra75001 PARISTel.: +33 1 46946917