The Temisas Carbonate Buildingan example of a thermogene tufa system in Gran Canaria Island
- R.R. Estrella de Pinho 1
- A. Rodríguez-Berriguete 2
- A.M. Alonso-Zarza 2
- Mª.C. Cabrera 3
- 1 Universidade Federal do Rio de Janeiro, Brasil
- 2 Universidad Complutense de Madrid, España
- 3 Universidad de Las Palmas de Gran Canaria, España
ISSN: 0213-683X
Ano de publicación: 2015
Título do exemplar: Comunicaciones presentadas en la LVII Sesión Científica / Madrid, 27-28 de Noviembre de 2014
Número: 57
Páxinas: 7-10
Tipo: Artigo
Outras publicacións en: Geogaceta
Resumo
The Temisas Carbonate Building (TCB) is situated in the Temisas ravine, at the SW part of the Gran Canaria Island. Four different facies were recognised: detrital, framestone, phytoclastic and a transition between the last two facies. The carbonate is mostly calcite. The sedimentary sequence indicates that the TCB was formed in a fluvial system with different subenvironments, such as cascades, channels and bars. The studied deposits correspond to the distal part of a calcareous spring deposit. Petrologically these deposits can be included in the term tufa. The stable isotope values indicate thermal origin for the CO2, so from the geochemical point of view the TCB should be considered a thermogene tufa.