Principales características de los acuíferos carbonatados de la región de Dobrich (Bulgaria)

  1. A. Pulido Bosch 1
  2. M. López Chicano 1
  3. M.L. Calvache 1
  4. J.M. Calaforra 2
  5. M. Machkova 3
  6. D. Dimitrov 3
  7. B. Velikov 4
  8. P. Pentchev 4
  1. 1 Universidad de Granada
    info

    Universidad de Granada

    Granada, España

    ROR https://ror.org/04njjy449

  2. 2 Universidad de Almería
    info

    Universidad de Almería

    Almería, España

    ROR https://ror.org/003d3xx08

  3. 3 National Institute of Meteorology and Hydrology
    info

    National Institute of Meteorology and Hydrology

    Sofía, Bulgaria

    ROR https://ror.org/021vn9c61

  4. 4 University of Mining and Geology "Saint Ivan Rilski"
    info

    University of Mining and Geology "Saint Ivan Rilski"

    Sofía, Bulgaria

    ROR https://ror.org/01z014940

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Journal:
Revista de la Sociedad Geológica de España

ISSN: 0214-2708

Year of publication: 1996

Volume: 9

Issue: 3-4

Pages: 143-156

Type: Article

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Abstract

In the study area, occupying 4600 km2 in the sector of Dobrich, two large aquifers have been differentiated, these separated by an impermeable layer. The Upper Aquifer, composed of highly porous Miocene limestones, with minor karstic behaviour, and the confined Deep Aquifer, made up of limestones and dolomites from the Malm-Valanginian, bearing typical karstic characteristics. Although the two aquifers are in theory separate, interconnection through poorly insulated wells can be deduced. The Upper Aquifer betrays signs of pollution, while the Deep Aquifer does not, the latter having numerous artesian wells of thermal water, largely abandoned except used in some spas. The highly saline waters detected locally must be «fossil» waters.

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