Abstract
[RESUMO] Efectuou-se a calibração estratigráfica das unidades sísmicas mais recentes identificadas na Bacia offshore do Algarve recorrendo à análise biostratigráfica (Nanofósseis calcários e Foraminíferos) do core de pistão SWIM04-39. Obteve-se uma idade de cerca de 4.0 Ma (Pliocénico Inferior, Zancliano) para as associações fitoplanctónica e faunística presente nas amostras do referido core. Estes dados permitiram datar o início da intensa subsidência sofrida por esta Bacia como sendo Pliocénico Inferior.
[ABSTRACT] Biostratigraphic calibration of the seismic units recognized in the offshore Algarve Basin was made, based on
the identification of Calcareous nanofossil and Foraminifera assemblages present in the core SWIM04-39. An
age of about 4.0 Ma (Early Pliocene, Zanclean) was determinate for these assemblages. Using this data is
possible to place the beginning of subsidence movements in the offshore Algarve Basin during the Early
Pliocene.
[ABSTRACT] Biostratigraphic calibration of the seismic units recognized in the offshore Algarve Basin was made, based on
the identification of Calcareous nanofossil and Foraminifera assemblages present in the core SWIM04-39. An
age of about 4.0 Ma (Early Pliocene, Zanclean) was determinate for these assemblages. Using this data is
possible to place the beginning of subsidence movements in the offshore Algarve Basin during the Early
Pliocene.
Translated title of the contribution | Biostratigraphic calibration of seismic units in the offshore Algarve Basin: contribution of core SWIM04-39 |
---|---|
Original language | Portuguese |
Title of host publication | VII Congresso Nacional de Geologia - Resumos alargados |
Publisher | Universidade de Évora |
Pages | 425-428 |
ISBN (Print) | 972-778-093-8 |
Publication status | Published - 2006 |
Event | VII Congresso Nacional de Geologia 2006 - Universidade de Évora, Estremoz, Portugal Duration: 29 Jun 2006 → 13 Jul 2006 |
Conference
Conference | VII Congresso Nacional de Geologia 2006 |
---|---|
Country/Territory | Portugal |
City | Estremoz |
Period | 29/06/06 → 13/07/06 |
Keywords
- Bacia do Algarve
- Cenozóico
- unidades sísmicas
- biostratigrafia
- Algarve Basin
- Cenozoic
- seismic units
- biostratigraphy