Finding of a Holocene marine layer in Algarrobo (33°22′S), central Chile. Implications for coastal uplift

Alfonso Encinas, Francisco Hervé, Rodrigo Villa-Martínez, Sven N. Nielsen, Kenneth L. Finger, Dawn E. Peterson

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

16 Citas (Scopus)

Resumen

A buried Holocene marine bed was discovered upon drilling a water well in Algarrobo (33°22′S), located on the coast of central Chile. Radiocarbon dating of a wood fragment found within the deposit indicates an age of 6450 cal yr BP. The top of this bed, 0.25 m-thick, was reached at an elevation of 3.8 m above mean sea level. This bed contains abundant monospecific faunas of foraminifers (Ammonia tepida) and ostracodes (Cyprideis beaconensis), indicative of deposition in a very shallow, transitional marine environment. Palynologic analysis reveals a Chenopodiaceae-dominated (∼70%) assemblage, indicating a relatively arid and warm climate.

Idioma originalInglés
Páginas (desde-hasta)339-345
Número de páginas7
PublicaciónRevista Geologica de Chile
Volumen33
N.º2
DOI
EstadoPublicada - jul 2006

Áreas temáticas de ASJC Scopus

  • Geología

Huella

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