Article (Scientific journals)
Climatic significance of clay minerals in Cenozoic marine and lacustrine sediments
Fagel, Nathalie
2024In Clay Minerals
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Keywords :
paleoenvironment, paleoclimate, cenozoic
Abstract :
[en] In sediments, clay minerals are mainly detrital. Formed by continental weathering, they are carried by surface transport predominantly by rivers, glaciers and, to a lesser extent, winds to the adjacent sedimentary basins and then are redistributed by oceanic currents. In a sedimentary core, the variability in the clay mineral assemblages reflects either variable physical and chemical weathering conditions in the watershed, typically with a significant link to climatic conditions, or changes in the mineral source, the latter being associated with various transport agents. When different sources are involved, a combination of mineralogical and geochemical proxies allows us to trace the detrital provenance, but they also indirectly provide valuable information on transport pathways and palaeocurrents. This manuscript reviews several examples from the literature and ongoing research on clay mineral variability in marine or lacustrine sedimentary records and interprets them in terms of: (1) climate control at different timescales, from the Neogene to the Quaternary; and (2) transport paths. Examples are selected to review the various clay-derived proxies in existence
Research Center/Unit :
Geology - ULiège
Disciplines :
Earth sciences & physical geography
Author, co-author :
Fagel, Nathalie  ;  Université de Liège - ULiège > Département de géologie > Argiles, géochimie et environnements sédimentaires
Language :
English
Title :
Climatic significance of clay minerals in Cenozoic marine and lacustrine sediments
Publication date :
2024
Journal title :
Clay Minerals
ISSN :
0009-8558
Publisher :
Mineralogical Society, United Kingdom
Peer reviewed :
Peer Reviewed verified by ORBi
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since 24 June 2024

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