HYDROGEOLOGIC CHARACTERIZATION OF THE CRYSTALLINE AND TUBARÃO AQUIFER

Published
2006-11-07
DOI: https://doi.org/10.14295/ras.v20i1.9712

    Authors

  • Mirna A. Neves
  • Norberto Morales
  • Sueli Yoshinaga Pereira

Abstract

The Jundiai River Catchment is located mainly on the Crystalline Aquifer System, where groundwater flow

depends on rock discontinuities, and other part of this catchment is on the Tubarão Aquifer System, which behavior is also

heterogeneous and anisotropic. The productivity of these aquifers is not so different: the wells that exploit the Tubarão

Aquifer System have median specific capacity equal to 0,09 m3/h/m, and the ones that exploit the Crystalline AquiferSystem, as well as the mixed wells (which exploit both aquifer systems), have specific capacity equal to 0,07 m3/h/m. The

distribution of values is greatly variable, since the productivity depends on the location of wells in relation to the geological

structures witch characteristics (opening and conectivity) favour groundwater flow. They are brittle structures with NW-SE

and E-W directions that occur mainly along the regional shear and fault zones. The main groundwater flow in the basin is

from southeast to northwest and the main recharge area is in highlands. From highlands, groundwater is led to the Paraná

Sedimentary Basin, passing by the geological structures cited above.

How to Cite
Neves, M. A., Morales, N., & Pereira, S. Y. (2006). HYDROGEOLOGIC CHARACTERIZATION OF THE CRYSTALLINE AND TUBARÃO AQUIFER. Águas Subterrâneas, 20(1). https://doi.org/10.14295/ras.v20i1.9712