Navigation Links
Scientists from the UGR prove that rivers do not act as barriers for groundwater flow
Date:11/14/2007

This release is also available in Spanish.

The research team from the Geodynamics Department at the University of Granada and the Spanish Institute of Geology and Mining (which is part of the Spanish Ministry of Education and Science) has studied the hydrogeology of the karst aquifers in the Mediterranean climate. It has been found that, contrary to popular belief, rivers do not act as insurmountable barriers for groundwater flow.

This pioneering study was carried out by Antonio Gonzlez Ramn and directed by doctors Manuel Lpez Chicano and Juan Carlos Rubio Campos. They based their research on the karst aquifer situated in the Pegalajar and the Mojn Blanco ranges. It occupies the northern side of the Betica mountain range and was provisionally declared overexploited in 1992 because of the complete drying up of the La Reja spring - whose source is situated in the centre of the village of Pegalajar - due to the exploitation of the water resources in order to supply the villages of Mancha Real, Pegalajar and La Guardia, which are all situated in the province of Jan, Spain.

These scientists have proven that important rivers such as Guadalbulln are not insurmountable barriers for groundwater flows, as previously believed. The analysis of piezometric, hydrochemical and isotopic data from groundwater flows revealed that they cross the Guadalbulln River from one bank to the other due to a certain geological structure which prevents the groundwater from being influenced by the river flow.

The analysed data

This research is based on the analysis of environmental isotopes, and both piezometric and hydrochemical data collected from the aquifers located in the Pegalajar and the Mojn Blanco ranges and from others nearby, in addition to the piezometric information available and the information added by previous studies carried out by several administration bodies. The analysis of all this information has made it possible to create a new hydrogeological model which explains most of the current mysteries. It has also made it possible to accurately identify which water resources depend on these aquifers and to design a new exploitation model which does not affect important springs such as the one at La Reja.

The hydrogeological model which results from this research has been a useful basis for the development of a programme which controls the exploitation of the Mancha Real Pegalajar aquifer. This programme aims to solve the social problems related to the exploitation of the groundwater in that area, according to the author of this study.

After having proven their success, some measures included in this programme have already been put into practice. Also, other measures are being implemented in order to restore the spring of La Reja. The research carried out at the University of Granada has shown the importance of accurate knowledge of geological structures to explain the stages of storage and circulation of groundwater in karst aquifers severely folded and fractured.


'/>"/>

Contact: Antonio Gonzlez Ramn
antonio.gonzalez@igme.es
34-958-183-143
Universidad de Granada  
Source:Eurekalert

Related biology news :

1. UK scientists working to help cut ID theft
2. Scientists show that mitochondrial DNA variants are linked to risk factors for type 2 diabetes
3. Comet probes reveal evidence of origin of life, scientists claim
4. Scientists link fragile X tremor/ataxia syndrome to binding protein in RNA
5. Male elephants get photo IDs from scientists
6. Scientists retrace evolution with first atomic structure of an ancient protein
7. Muscle mass: Scientists identify novel mode of transcriptional regulation during myogenesis
8. Carnegie Mellon scientists develop nanogels that enable controlled delivery of carbohydrate drugs
9. Clemson scientists shed light on molecules in living cells
10. Scientists tackle mystery mountain illness
11. T. rex quicker than Becks, say scientists
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists from the UGR prove that rivers do not act as barriers for groundwater flow
(Date:6/22/2016)... , June 22, 2016  The American College of Medical ... Show Executive Magazine as one of the fastest-growing trade ... 25-27 at the Bellagio in Las Vegas ... highest percentage of growth in each of the following categories: ... companies and number of attendees. The 2015 ACMG Annual Meeting ...
(Date:6/16/2016)... June 16, 2016 The ... expected to reach USD 1.83 billion by 2024, ... Research, Inc. Technological proliferation and increasing demand in ... expected to drive the market growth. ... The development of advanced multimodal techniques for ...
(Date:6/3/2016)... June 3, 2016 ... Nepal hat ein ... hochsicherer geprägter Kennzeichen, einschließlich Personalisierung, Registrierung und ... der Produktion und Implementierung von Identitätsmanagementlösungen. Zahlreiche ... im Januar teilgenommen, aber Decatur wurde als ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... SPRING, Md. , June 23, 2016 A ... collected from the crime scene to track the criminal down. ... and the U.S. Food and Drug Administration (FDA) uses DNA ... Sound far-fetched? It,s not. The ... genome sequencing to support investigations of foodborne illnesses. Put as ...
(Date:6/23/2016)... SAN FRANCISCO , June 23, 2016   ... it has secured $1 million in debt financing from ... to ramp up automation and to advance its drug ... for its new facility. "SVB has been ... goes beyond the services a traditional bank would provide," ...
(Date:6/23/2016)... , June 23, 2016  Blueprint Bio, a company ... to the medical community, has closed its Series A ... Nunez . "We have received a commitment ... capital we need to meet our current goals," stated ... us the runway to complete validation on the current ...
(Date:6/23/2016)... ... June 23, 2016 , ... ... line of intelligent tools designed, tuned and optimized exclusively for Okuma CNC machining ... Chicago. The result of a collaboration among several companies with expertise in toolholding, ...
Breaking Biology Technology: