English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/151274
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Paleocene radiolarians from xenoliths hosted in Holocene lavas of Lanzarote (Canary Islands)

Otros títulosRadiolaires paléocènes dans quelques enclaves en laves holocènes de Lanzarote (Iles Canaries)
AutorBustillo, Mª Ángeles ; Nishimura, Akiko; Araña, Vicente ; Hattori, Isamu
Palabras claveRadiolarians
Late Paleocene
Xenoliths in lavas oceanic crust
Canary Islands
Radiolaires
Paléocène tardif
Xénolites en laves
Croute océanique
Iles Canaries
Fecha de publicación1994
EditorElsevier
CitaciónGeobios - Paleontologie Stratigraphie Paleoecologie 27(2): 181-188 (1994)
Resumen[EN] Paleocene radiolarian assemblages from siliceous metasedimentary xenoliths hosted in some historic lava flows of Lanzarote (Canary Island) are analyzed. A thermal metamorphism transformed the radiolarians and they are now composed of cristobalite, calcite, quartz, or wollastonite 2M. In spite of the poor conservation, both Spumellaria and Nassellaria specimens have been identified. The radiolarian assemblages found can be correlated with the B. campechensis zone of the late Paleocene. These radiolarian bearing rocks cover an important hiatus in the sedimentological record of the Northwest African Margin. The abundance of radiolarians during this time can be explained by upwelling. The location of Lanzarote on the oceanic slope of the Tarfaya-Aiun basin, and the topography created by submarine volcanism are two conditions that can lead to the existence of upwelling.
URIhttp://hdl.handle.net/10261/151274
ISSN0016-6995
Aparece en las colecciones: (MNCN) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.