Geogenic lanthanoid signature in coastal and marine waters from the southern Gulf of California.
Mar Pollut Bull
; 173(Pt A): 112942, 2021 Dec.
Article
em En
| MEDLINE
| ID: mdl-34534936
Lanthanoids in the southern Gulf of California (GC) seawater are reported for the first time. Lanthanoids showed differences between peninsular and continental coastline, coastal or marine ecosystems, and dry or rainy season. The chondrite-normalized values showed high variability but followed a same pattern. Light lanthanoids were more enriched than heavy ones. Values of ∑Ln and La/Lu were higher in continental than peninsular coastlines, coastal than adjacent marine ecosystems, and rainy than dry season. Differences were related to the lithology and perturbation degree of the ecosystem watersheds. The chondrite-normalized patterns are typical of geological origin. Slightly negative Ce anomaly was related to the low levels of oxygen in water for the oxidation of Ce (III) to Ce (IV) and its posterior scavenging. Negative δEu anomaly is explained by an influx of fluvial and eolian materials from the upper continental, while a positive Eu anomaly related to hydrothermal vent inputs was non-evidenced.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ecossistema
/
Elementos da Série dos Lantanídeos
Idioma:
En
Revista:
Mar Pollut Bull
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
México
País de publicação:
Reino Unido