Application of self-absorption correction method in gamma spectroscopy for Pb and Cs sediment chronology on the continental slope off NW Africa
نویسندگان
چکیده
Climatological background Life in the semiarid Sahel belt of tropical North Africa strongly depends on the availability of water and has been repeatedly affected by shifts to more arid climate. The most recent drought occurred in the early 1970’s and 1980’s, with partial recovery during the late 1990’s. High resolution fluvial sediments off Senegal offer the opportunity to study the history of the Sahel drought and to assess its imprint on the composition of terrestrial materials deposited at the sea floor, if the material can be accurately dated on historical time scales.
منابع مشابه
Application of self-absorption correction method in gamma spectroscopy for 210Pb and 137Cs sediment chronology on the continental slope off NW Africa
The uppermost 50 cm of the high resolution core GeoB9501-4 from the continental slope off NW Africa has been used for improving routine technique of 210Pb and 137Cs sediment chronology in the Radioactivity measurement laboratory of the Bremen University. The experimental requirements for 210Pb and 137Cs determination were non-destructive analysis of wet sediment samples in cylindrical container...
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