S. Ansanay-Alex

S. Ansanay-Alex
Ecole normale supérieure de Lyon | ENS Lyon · Département des Sciences de la Terre (Géologie)

PhD

About

11
Publications
1,304
Reads
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51
Citations
Citations since 2016
8 Research Items
27 Citations
201620172018201920202021202202468
201620172018201920202021202202468
201620172018201920202021202202468
201620172018201920202021202202468

Publications

Publications (11)
Preprint
The Lateglacial (14,700–11,700 cal BP) is a key climate period marked by rapid but contrasted changes in the Northern Hemisphere. Indeed, regional climate differences have been evidenced during the Lateglacial in Europe and the Northern Mediterranean areas. However, past climate patterns are still debated since temperature and precipitation changes...
Article
Relationships between steppe vegetation, human practices and climate changes in the past are crucial to disentangle human development in Eurasia. In this frame, our study investigates (1) modern pollen-vegetation relationships and (2) changes in vegetation, human activity and climate in the Holocene record of Vanevan peat (south-eastern shore of La...
Article
A coupled pollen-brGDGT paleoclimate reconstruction approach has been tested to provide independent and robust estimates of Holocene climate and environment changes in the extremely arid environment of the mountainous areas ranging from northern Arid Central Asia (ACA) to the Mongolian Plateau. The two proxies were calibrated for both global and lo...
Article
Passive sampling is a promising alternative to grab sampling. This approach consists in accumulating contaminants from water directly in-situ. Contrary to conventional grab sampling, this method allows integrating the temporal variations of the concentration. However most commercial samplers use complex and expensive adsorbent phases. In this work,...
Article
The adsorption capacity of a natural nanostructured clay (sepiolite) for the inorganic species: Ni<sup align="right"> 2+ </sup> and As(V) has been studied using a batch method. The different parameters affecting sorption such as the mass of adsorbent, contact time, sorbate concentration or pH have been investigated and optimal experimental conditio...

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