Sediment provenance in the River Eden catchment, Scotland, using chemical characterization of Fe–Ti oxide minerals and magnetic measurements

Autor:	E. Martinez‐Monasterio, W. E. Stephens, Robert W. Duck, J. Walden
Rok vydání:	2006
Předmět:	geography Oxide minerals Provenance geography.geographical_feature_category Drainage basin Oxide Geochemistry Sediment Geology equipment and supplies Grain size chemistry.chemical_compound chemistry Tributary Sedimentary rock human activities Geomorphology
Zdroj:	Scottish Journal of Geology. 42:137-148
ISSN:	2041-4951 0036-9276
DOI:	10.1144/sjg42020137
Popis:	Synopsis Sediment provenance in the River Eden catchment, Scotland, has been studied using chemical characterization of Fe–Ti oxide minerals and magnetic measurements. Results show that magnetic parameters lead to a better characterization and differentiation of rock sources and sediments than the chemical compositions of Fe–Ti oxide grains, thereby establishing a basis for provenance modelling. However, the chemical characterization of titanomagnetite grains allows a more accurate interpretation of the magnetic measurements. Discriminant function analysis of magnetic parameters yields an environmentally sensible, qualitative provenance model; but the intra-source magnetic variability and the similarity of the sources in terms of magnetic concentration, composition and grain size prevent successful quantitative provenance modelling. Tributary inputs are recognized downstream along the main channel of the River Eden, despite the tendency for the sediment characteristics to be homogenized during transport. This study highlights the potential for using a combination of Fe–Ti oxides chemical compositions together with magnetic parameters in sedimentary provenance studies.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6e90477da6e180a9430140eb87b4f9ed https://doi.org/10.1144/sjg42020137 Zobrazit plný text záznamu