|
|
| Skonieczny, C.; Mcgee, D.; Winckler, G.; Bory, A.; Bradtmiller, L. I.; Kinsley, C. W.; Polissar, P. J.; De Pol-holz, R.; Rossignol, L.; Malaizé, B.. |
| Reconstructions of past Saharan dust deposition in marine sediments provide foundational records of North African climate over time scales of 103 to 106 years. Previous dust records show primarily glacial-interglacial variability in the Pleistocene, in contrast to other monsoon records showing strong precessional variability. Here, we present the first Saharan dust record spanning multiple glacial cycles obtained using 230Th normalization, an improved method of calculating fluxes. Contrary to previous data, our record from the West African margin demonstrates high correlation with summer insolation and limited glacial-interglacial changes, indicating coherent variability in the African monsoon belt throughout the late Pleistocene. Our results demonstrate... |
| Tipo: Text |
|
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00474/58554/61106.pdf |
| |
