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Mostrando ítems 11-19 de 19
Artículo
Enhanced U and Th concentrations in soils from a wet marshland washed by contaminated riverwaters
(Elsevier, 1996)
A study of the presence of U and Th isotopes in soil samples from a saline wet Marshland located close to a phosphoric acid production factory is presented. The samples were collected during low tide in areas washed by ...
Artículo
The distribution of U, Th and 226Ra derived from the phosphate fertilizer industries on an estuarine system in Southwest Spain
(Elsevier, 1994)
This paper reports an extensive study of the presence of natural radioactivity around a phosphate fertilizer factory complex situated in an estuarine area of southwest Spain. The study has concluded that the wastes from ...
Artículo
210Pb enhancement in rivers affected by the phosphate rock processing in southwestern Spain
(Elsevier, 1997)
The activity levels of 210Pb in solution and bottom sediments were measured in the estuary formed by the Odiel and Tinto rivers in southwest Spain. The levels in both water and sediment samples indicate that the discharges ...
Artículo
Transfer of natural radionuclides from soils to plants in a marsh enhanced by the operation of non-nuclear industries
(Elsevier, 1997)
Two sampling campaigns were performed in 1993 at the marsh area (Odiel marsh) located in southwestern Spain, in the city of Huelva. Spartina densiflora and substrate soil (5 cm deep) samples were collected in several ...
Artículo
Transfer of natural radionuclides from soils to plants in a wet marshland
(Elsevier, 1996)
Soils and two wild plant species (Spartina densiflora and Spartina maritima) have been collected from the Odiel river marsh and analysed for 210Po and 238U. The radioactivity concentrations in plants and soils reflect the ...
Artículo
U and Th distribution in solution and suspended matter from rivers affected by the phosphate rock processing in southwestern Spain
(Elsevier, 1994)
A study is presented on the distribution of U and Th isotopes in the solid and liquid fractions of waters collected along the Odiel and Tinto rivers (southwest Spain). Such rivers are affected by the operation of phosphate ...
Artículo
Evidencias morfogenéticas cuaternarias en el Karst de la Sierra del Endrinal (Grazalema, Cádiz)
(Sociedad Geológica de España, 1998)
The geomorphological observations made until now reveal a long morphogenic history for the karst of the Eridrinal: mountains; going back to pre-Quaternary times. The erosion surfaces mapped (Sl, S2 and 53) have å biostatic ...
Artículo
A six-phase model to simulate the contamination by non-conservative radionuclides of sediments, soils and plants in a marsh area. Application to the Odiel marsh in southwest Spain
(Elsevier, 1997)
A numerical model to simulate the dispersion of non-conservative radionuclides in an estuarine system that surrounds a marsh area has been developed. The model includes six phases: water, two types of suspended particles ...
Artículo
Identification and effects of anthropogenic emissions of U and Th on the composition of sediments in a river/estuarine system in Southern Spain
(Elsevier, 1994)
A study of the distribution of natural radionuclides in different fractions of river bottom sediments has been carried out. The study has shown that the majority of the total U in the sediment is located in the non-residual ...