Study of ¿Formação areno-pelítica¿ in the porto - vila nova de gaia coastal area. Contribution of the pollen content [Estudo da ¿formação areno-pelítica¿ na zona litoral porto - vila nova de gaia. Contribuição do conteúdo polínico]

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Ribeiro, H (Author) Other; de Jesus, AP (Author) Other; Oliveira, F (Author) Other; Romani, JV (Author) Other; Abreu, I (Author) Other; Noronha, F (Author) FCUP

Journal

Title: Comunicações Geológicas

Vol. 101

Pages: 631-634

ISSN: 0873-948X

Publisher: LNEG - Laboratório Nacional de Energia e Geologia

Indexing

ISI Web of Knowledge

Scopus - 3 Citations

Other information

Authenticus ID: P-00G-KAZ

Abstract (EN): In this study it is presented the geochronological, sedimentological and palynological analysis on the cover level named ¿Formação areno-pelitica de cobertura¿ from several deposits found from Porto to Vila Nova de Gaia coastal areas. Geochronological studies were performed by quartz-OSL dating and sedimentary analysis, grain size distribution and palynological analysis was conducted. The studied samples have an age between 67 and 56 ky and represent an areno-pelitic bed with pebbles corresponding to a sedimentary level with continental influence, probably developed in periglacial conditions. The pollen profile is dominated by non-arboreal species, particularly pollen from higher plants of Poaceae, Asteraceae, Ericaceae, Cistaceae, Apiaceae and Pteridophytes as Isoetes, indicating a cold and dry environment of open vegetation with lower tree representation. © 2014, LNEG ¿ Laboratório Nacional de Geologia e Energia IP.

Language: Portuguese

Type (Professor's evaluation): Scientific