Asociaciones de foraminíferos bentónicos cuaternarios de la plataforma del río Maroni (Guayana francesa): contribución paleogeográfica.

• Pascual, A. ^[1] ; Pujos, M. ^[2]
  1. [1] Universidad del País Vasco/Euskal Herriko Unibertsitatea

     Universidad del País Vasco/Euskal Herriko Unibertsitatea

     Leioa, España

     
  2. [2] Université Bordeaux I, Francia
• Localización: Geogaceta, ISSN 0213-683X, Nº. 22, 1997 (Ejemplar dedicado a: 22ª Sesión Científica, Bilbao 1997), págs. 141-144
• Idioma: español
• Títulos paralelos:
  • Quaternary benthic foraminiferal assemblages on the Maroni shelf (French Guiana): paleogeography contribution
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  • Texto completo (pdf)
• Resumen

  • The distribution of benthic foraminiferal microfauna recovered from two cores on the Maroni continental shelf (French Guiana) has been studied. 100 species and two types of foraminiferal assemblages have been identified in the study area. They characterize a record of oceanographic changes from late Quaternary (3000 years B.P) to the present. The assemblage of unit 2 indicates a shelf environment with strong erosion (deeper core KS 33), also an old lagoon with temporary élnoxy events (shallower core KS 34). The modern assemblage (unit 1) shows the rise of sea-Ievel up to modern situation, that implicated the flooding of the lagoon and the reinstauration of the shelf conditions in the studied area.