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Fig. 4


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Depth variation of the mineral and organic composition of the sediment core taken in the shallow depression. A: BD: bulk density (−3); B: Pb: total lead (cps); C: Ti: titanium (cps); D: Si/Ti: silicon/titanium ratio (cps/cps); E: Corg: organic carbon content (%); F: C/N: carbon/nitrogen ratio; G: δ13C (‰).

Composition minérale et organique en fonction de la profondeur de la carotte de sédiment de l’anse. A : BD : densité apparente (−3) ; B : Pb : plomb total (cps) ; C : Ti : titane (cps) ; D : Si/Ti : ratio silicium/titane (cps/cps) ; E : Corg : carbon organique (%) ; F : C/N : ratio carbone/azote ; G : δ13C (‰).

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