2022 Ndiaye Bentaleb Favier Fourel Sebag Fall Giresse Diouf Reconstruction holocene climate environmental changes Niayes peat bog northern coast Senegal NW Africa based stable isotopes charcoals analysis Quaternary Science Reviews 289 107609 Holocene Niayes”-Senegal Carbon isotopes Rock-eval® thermal analysis Charcoals Monsoon PalaeoenvironmentGeography Physical Geosciences MultidisciplinaryGeology core peat bog Niayes region northwest Senegal provides valuable insight evolution landscape fire regime related West African Monsoon rainfall human