REE Geochemistry of Neogene–Holocene Sediments of La Fontanilla Cove (Tinto Estuary, SW Spain)
The Tinto and Odiel rivers (SW Spain) drain from a vast sulfide mining district and join at a 20-km-long estuary that enters the Atlantic Ocean. In this work, the contents of rare earth elements (REE) and fractionation in Neogene–Holocene sediment cores from La Fontanilla cove (Tinto estuary) were s...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Minerals |
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| Online Access: | https://www.mdpi.com/2075-163X/12/4/417 |
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| author | Maria Isabel Prudêncio Francisco Ruiz Rosa Marques Maria Isabel Dias Joaquín Rodríguez Vidal Ana Luísa Rodrigues Luis Miguel Cáceres María Luz González-Regalado Juan Manuel Muñoz Manuel Pozo Paula Gómez Antonio Toscano Manuel Abad Tatiana Izquierdo Marta Arroyo Verónica Romero Gabriel Gómez |
| author_facet | Maria Isabel Prudêncio Francisco Ruiz Rosa Marques Maria Isabel Dias Joaquín Rodríguez Vidal Ana Luísa Rodrigues Luis Miguel Cáceres María Luz González-Regalado Juan Manuel Muñoz Manuel Pozo Paula Gómez Antonio Toscano Manuel Abad Tatiana Izquierdo Marta Arroyo Verónica Romero Gabriel Gómez |
| author_sort | Maria Isabel Prudêncio |
| collection | DOAJ |
| description | The Tinto and Odiel rivers (SW Spain) drain from a vast sulfide mining district and join at a 20-km-long estuary that enters the Atlantic Ocean. In this work, the contents of rare earth elements (REE) and fractionation in Neogene–Holocene sediment cores from La Fontanilla cove (Tinto estuary) were studied. The sediments were collected from a depth of 18 m at different distances from the recent river flow and were analyzed for new information on the temporal development of the REE load in the sediment column. Results show that the ∑ REE is higher in the finer sediments and during periods of mining activity from prehistoric to recent times. Marine influence appears to increase the light REE (LREE) relative to the heavy REE (HREE). The REE patterns of these estuarine sediments show convex curvatures in the MREE relative to the LREE and HREE, indicating the presence of acid-mixing processes between the fluvial waters affected by acid mine drainage (AMD) and seawater, as well as the precipitation of poorly crystalline mineral phases. Significant positive Eu anomalies were found in ebb-tide channels and marsh deposits, which can reflect the mineralogical composition and/or a strong localized salinity gradient combined with organic matter degradation. Sedimentological characteristics of the deposits appear to play the main role in accumulation and fractionation of the REE. |
| first_indexed | 2024-03-09T13:15:19Z |
| format | Article |
| id | doaj.art-3730ac5664f446ff9fc03036a91fc915 |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-09T13:15:19Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-3730ac5664f446ff9fc03036a91fc9152023-11-30T21:36:10ZengMDPI AGMinerals2075-163X2022-03-0112441710.3390/min12040417REE Geochemistry of Neogene–Holocene Sediments of La Fontanilla Cove (Tinto Estuary, SW Spain)Maria Isabel Prudêncio0Francisco Ruiz1Rosa Marques2Maria Isabel Dias3Joaquín Rodríguez Vidal4Ana Luísa Rodrigues5Luis Miguel Cáceres6María Luz González-Regalado7Juan Manuel Muñoz8Manuel Pozo9Paula Gómez10Antonio Toscano11Manuel Abad12Tatiana Izquierdo13Marta Arroyo14Verónica Romero15Gabriel Gómez16Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, EN 10 (km 139.7), 2695-066 Bobadela, PortugalDepartamento de Ciencias de la Tierra, Universidad de Huelva, Avda. Tres de Marzo, s/n, 21071 Huelva, SpainCentro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, EN 10 (km 139.7), 2695-066 Bobadela, PortugalCentro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, EN 10 (km 139.7), 2695-066 Bobadela, PortugalDepartamento de Ciencias de la Tierra, Universidad de Huelva, Avda. Tres de Marzo, s/n, 21071 Huelva, SpainCentro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, EN 10 (km 139.7), 2695-066 Bobadela, PortugalDepartamento de Ciencias de la Tierra, Universidad de Huelva, Avda. Tres de Marzo, s/n, 21071 Huelva, SpainDepartamento de Ciencias de la Tierra, Universidad de Huelva, Avda. Tres de Marzo, s/n, 21071 Huelva, SpainDepartamento de Estadística e Investigación Operativa, Universidad de Sevilla, C/Profesor García González 1, 41012 Sevilla, SpainDepartamento de Geología y Geoquímica, Universidad Autónoma de Madrid, Avda. Francisco Tomas y Valiente 7, 28049 Madrid, SpainDepartamento de Ciencias de la Tierra, Universidad de Huelva, Avda. Tres de Marzo, s/n, 21071 Huelva, SpainDepartamento de Ciencias de la Tierra, Universidad de Huelva, Avda. Tres de Marzo, s/n, 21071 Huelva, SpainDepartamento de Biología y Geología, Física y Química Inorgánica, ESCET, Universidad Rey Juan Carlos, 28933 Móstoles, SpainDepartamento de Biología y Geología, Física y Química Inorgánica, ESCET, Universidad Rey Juan Carlos, 28933 Móstoles, SpainDepartamento de Ciencias de la Tierra, Universidad de Huelva, Avda. Tres de Marzo, s/n, 21071 Huelva, SpainDepartamento de Ciencias de la Tierra, Universidad de Huelva, Avda. Tres de Marzo, s/n, 21071 Huelva, SpainDepartamento de Ciencias de la Tierra, Universidad de Huelva, Avda. Tres de Marzo, s/n, 21071 Huelva, SpainThe Tinto and Odiel rivers (SW Spain) drain from a vast sulfide mining district and join at a 20-km-long estuary that enters the Atlantic Ocean. In this work, the contents of rare earth elements (REE) and fractionation in Neogene–Holocene sediment cores from La Fontanilla cove (Tinto estuary) were studied. The sediments were collected from a depth of 18 m at different distances from the recent river flow and were analyzed for new information on the temporal development of the REE load in the sediment column. Results show that the ∑ REE is higher in the finer sediments and during periods of mining activity from prehistoric to recent times. Marine influence appears to increase the light REE (LREE) relative to the heavy REE (HREE). The REE patterns of these estuarine sediments show convex curvatures in the MREE relative to the LREE and HREE, indicating the presence of acid-mixing processes between the fluvial waters affected by acid mine drainage (AMD) and seawater, as well as the precipitation of poorly crystalline mineral phases. Significant positive Eu anomalies were found in ebb-tide channels and marsh deposits, which can reflect the mineralogical composition and/or a strong localized salinity gradient combined with organic matter degradation. Sedimentological characteristics of the deposits appear to play the main role in accumulation and fractionation of the REE.https://www.mdpi.com/2075-163X/12/4/417rare earth elementsestuarine sediments coressedimentary faciesacid drainagepaleoenvironmental reconstructionTinto River |
| spellingShingle | Maria Isabel Prudêncio Francisco Ruiz Rosa Marques Maria Isabel Dias Joaquín Rodríguez Vidal Ana Luísa Rodrigues Luis Miguel Cáceres María Luz González-Regalado Juan Manuel Muñoz Manuel Pozo Paula Gómez Antonio Toscano Manuel Abad Tatiana Izquierdo Marta Arroyo Verónica Romero Gabriel Gómez REE Geochemistry of Neogene–Holocene Sediments of La Fontanilla Cove (Tinto Estuary, SW Spain) Minerals rare earth elements estuarine sediments cores sedimentary facies acid drainage paleoenvironmental reconstruction Tinto River |
| title | REE Geochemistry of Neogene–Holocene Sediments of La Fontanilla Cove (Tinto Estuary, SW Spain) |
| title_full | REE Geochemistry of Neogene–Holocene Sediments of La Fontanilla Cove (Tinto Estuary, SW Spain) |
| title_fullStr | REE Geochemistry of Neogene–Holocene Sediments of La Fontanilla Cove (Tinto Estuary, SW Spain) |
| title_full_unstemmed | REE Geochemistry of Neogene–Holocene Sediments of La Fontanilla Cove (Tinto Estuary, SW Spain) |
| title_short | REE Geochemistry of Neogene–Holocene Sediments of La Fontanilla Cove (Tinto Estuary, SW Spain) |
| title_sort | ree geochemistry of neogene holocene sediments of la fontanilla cove tinto estuary sw spain |
| topic | rare earth elements estuarine sediments cores sedimentary facies acid drainage paleoenvironmental reconstruction Tinto River |
| url | https://www.mdpi.com/2075-163X/12/4/417 |
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