Cambios climáticos durante los últimos 37.000 años detectados en el SE del golfo de Vizcaya por medio de foraminíferos bentónicos.

Ana Pascual ^[1] ; Julio Rodríguez-Lázaro ^[1] ; Zeltia Varela ^[1] ; Blanca Martínez-García
1. [1] Universidad del País Vasco/Euskal Herriko Unibertsitatea
  
  Universidad del País Vasco/Euskal Herriko Unibertsitatea
  
  Leioa, España
Localización: XV Reunión Nacional de Cuaternario Bizkaia Aretoa: Bilbao, 1-5 julio 2019. Libro de resúmenes, 2019, ISBN 978-84-17713-16-4, págs. 59-62
Idioma: español
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Resumen
- Benthic foraminifera have revealed the palaeoclimatic and palaeoceanographic changes occurred in the SE Bay of Biscay between MIS (Marine Isotope Stage)3 and the most recent MIS 1. Cassidulina laevigata dominated during Heinrich 1 (H1), Younger Dryas (YD). Hyalinea balthica was along the H 1. Bulimina gibba is the species that indicates the Bølling-Allerød (B / A). Globobulimina affinis characterizes H1b and the middle Holocene, while Uvigerina peregrina is more abundant during the whole Holocene. Main assemblages, diversity, oceanity index, percentage of allochthonous coastal species and species indicating oxygen levels, allowed us to characterise different environmental factors: depth, temperature, dissolved oxygen, amount of organic matter, processes of upwelling or circulation of the AMOC.