SciELO - Scientific Electronic Library Online

 
vol.30 número1EARLY ORDOVICIAN GRAPTOLITE AND GEOLOGY OF THE OUTCROPS OF VENADO RIVER (HUILA REGION)FACIES DISLOCATION ON TOP OF THE CRETACEOUS SEQUENCE OF THE NEIVA SUB-BASIN, UPPER MAGDALENA VALLEY, IMPLICATIONS IN THE SEQUENTIAL STRATIGRAPHIC MODEL OF COLOMBIA índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Artigo

Indicadores

Links relacionados

  • Não possue artigos similaresSimilares em SciELO

Bookmark

Boletin de Geología

versão impressa ISSN 0120-0283

Resumo

DE PORTA, Jaime; BARRERA, Rodolfo  e  JULIA, Ramón. RAISED MARSH DEPOSITS NEAR CARTAGENA DE INDIAS, COLOMBIA: EVIDENCE OF EUSTATIC AND CLIMATIC INSTABILITY DURING THE LATE HOLOCENE. bol.geol. [online]. 2008, vol.30, n.1, pp. 21-28. ISSN 0120-0283.

The marsh deposits cropping out near Galerazamba are located at 15 m above sea level and at a distance of 1,250 m from the present day Ciénaga El Totumo. This location suggests frequent changes in the sea level. A radiocarbon age 4,150±50 yr BP was obtained from mollusc remains at the Ciénaga El Totumo. The age of the marsh corresponds to a dry climate period according to paleoenvironmental data from the northern part of South America. The Ciénaga El Totumo retreated during this dry episode. The fossil biota content found in these raised marsh deposits is poorly diversified and corresponds to the inner part of the marsh.

Palavras-chave : Marsh deposits; Late Holocene; Molluscs.

        · resumo em Espanhol     · texto em Inglês     · pdf em Inglês