Environmental Isotopes in a coastal karstic aquifer, Cuba. Preliminary Report.

DAPEÑA, CRISTINA; PANARELLO, HECTOR; PERALTA VITAL, JOSÉ LUIS; GIL CASTILLO, REINALDO; LEYVA BOMBOUSE, DENNYS; DUCOS, ESTELA I.; VALDES, LOURDES; OLIVERA ACOSTA, JORGE

Brasilia, Brasil

Simposio; VII SSAGI South American Symposium on Isotope Geology; 2010

Universidad de Brasilia, Brasil

<!-- /* Font Definitions */ @font-face {font-family:Calibri; mso-font-alt:"Century Gothic"; mso-font-charset:0; mso-generic-font-family:swiss; mso-font-pitch:variable; mso-font-signature:-1610611985 1073750139 0 0 159 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin-top:0cm; margin-right:0cm; margin-bottom:10.0pt; margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:Calibri; mso-fareast-font-family:Calibri; mso-bidi-font-family:"Times New Roman"; mso-ansi-language:PT-BR; mso-fareast-language:EN-US;} @page Section1 {size:612.0pt 792.0pt; margin:70.85pt 3.0cm 70.85pt 3.0cm; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.Section1 {page:Section1;} --> The Artemisa-Quivicán basin is located in the southern sector of the Havana province, Cuba. It is known as South Basin (?Cuenca Sur?). The South Basin is the most important aquifer of Havana province and it has a length of 120 km and nearly 25 km of width. The recharge depends on precipitation regime and rain infiltrate in considerable proportion due to intense development of karst.  This aquifer is used for water supply to population, industry and irrigation and is affected by overexploitation, depletion and risk of contamination by anthropogenic action and saline sea intrusion. This investigation was supported by an International Collaboration Project represented by the ?Centro de Protección e Higiene de las Radiaciones? (CPHR), Cuba and the ?Instituto de Geocronología y Geología Isotópica? (INGEIS, CONICET-UBA), Argentina. The main objectives are the isotope and chemical characterization of the aquifer and to delimit the sector influenced by saline intrusion.  This paper presents preliminary results obtained during the first research phase.