Brancier J. auteur aut IRD Courte Amandine auteur aut IRD Todisco D. auteur aut IRD Brossard Michel auteur aut IRD text bookSection eng text/pdf reformatted digital access In archaeological contexts, physicochemical soil analyses are essential to distinguish between the anthropogenic characteristics of the soil and those resulting from soil formation processes. This involves several physicochemical characterisations of samples, which have been used since the first half of the last century in various regions of the world, but only recently in French Guiana. Ferralsols from French Guiana, and from the neotropics in general, are known to be acidic and nutrient poor, with particular properties. The choice of an appropriate methodology is important to understand the observed values and ultimately to compare the results between different projects. This chapter therefore presents each analysis and expected interpretations in light of past human activities. specialized AMAZONIE GUYANE FRANCAISE 068 Odonne G. ed. edt IRD Molino Jean-François ed. edt IRD 34-45 New York Routledge 2021 https://www.documentation.ird.fr/hor/fdi:010081761 978-0-367-18221-2 [F A010081241] https://www.documentation.ird.fr/hor/fdi:010081761 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/2025-07/010081761.pdf IRD - Base Horizon / Pleins textes 2021-04-21 2025-07-30 fdi:010081761 fre