Maurice Ndeye
Biographic Data
| ID | 5598378 |
|---|---|
| NAME | Maurice Ndeye |
| GIVEN NAMES | Maurice |
| FAMILY NAME | Ndeye |
| SIGNATURE | NDEYE M |
| ORCID | 0000-0003-3149-8203 |
| VERIFIED | Yes |
| TOTAL WORKS | 5 |
| TOTAL CITATIONS | 10 |
| WORKS AS AUTHOR | 5 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2004 |
| LATEST PUBLICATION YEAR | 2022 |
| H-INDEX | 2 |
Ifan CH.Diop Radiocarbon Laboratory Measurements Ii
New radiocarbon ( 14 C) dates we obtained in our radiocarbon laboratory equipped with a liquid scintillation counter using BGO (Bi4Ge3012) tubes. The electronic stability of the counter gave a background below 0.2 cpm. Our 14 C dates agree well with the interpretations done for the samples. Most of the results in these analyses were obtained on shell samples, charcoal samples, and tree leaves. Calibration of the dates with the appropriate softwar…
Anthropogenic CO 2 in the Dakar (Senegal) Urban Area Deduced from 14 C Concentration in Tree Leaves
Radiocarbon ( 14 C) in atmospheric CO 2 for the Dakar (Senegal) urban area was measured using tree leaves collected by botanists from 1900 to 2003. The aim of our study was to compare the local Suess effect in Dakar to the global one during the 20th century. The ∆ 14 C of atmospheric CO 2 in this region decreased from 1900 to 1958 during the pre-bomb era (–2±5‰ to –22±4‰). From 1958 to 1964, nuclear bomb tests injected a large amount of artificia…
Ifan Radiocarbon Laboratory Measurements I
Results obtained from a liquid scintillation counter using BGO (Bi 4 Ge 3 0 12 ) tubes have produced more precise radiocarbon dates in our laboratory. Duplicate analyses confirm the electronic stability of the counter with a background of 0.1 cpm. Our 14 C dates agree well with those from another laboratory (Paris 6-LOCEAN). Most of the 14 C dates in this study were obtained on samples taken from different archaeological sites. Calibration of the…
Marine Reservoir Ages in Northern Senegal and Mauritania Coastal Waters
In order to estimate the modern reservoir age of the seawater ( R ) and the corresponding local offset from the global marine radiocarbon calibration curve (δR) for coastal sites of Senegal and Mauritania, we analyzed pre-bomb mollusk shells collected between AD 1837 and 1945. In total, 27 shell samples were measured, including 19 from Senegal and 8 from Mauritania. The results for Senegal for the weighted mean of R is 511 ± 50 BP and δR is 176 ±…
Rehabilitation of the Laboratoire De Carbone 14-Dakar (Senegal) with a Super Low-Level Liquid Scintillation Counting System
Following the passing of Prof Cheikh Anta Diop in 1986, the radiocarbon laboratory (LC14) he created 20 yr earlier at the Institut Francophone d'Afrique Noire (IFAN), Dakar, Senegal, fell into a long hibernation. It took nearly 3 yr to renovate the laboratory and reinstall new equipment in order to return LC14 to full functionality and resume its activity. A new dating system has been implemented around a super low-level liquid scintillation spec…
Anthropogenic CO 2 in the Dakar (Senegal) Urban Area Deduced from 14 C Concentration in Tree Leaves
Radiocarbon ( 14 C) in atmospheric CO 2 for the Dakar (Senegal) urban area was measured using tree leaves collected by botanists from 1900 to 2003. The aim of our study was to compare the local Suess effect in Dakar to the global one during the 20th century. The ∆ 14 C of atmospheric CO 2 in this region decreased from 1900 to 1958 during the pre-bomb era (–2±5‰ to –22±4‰). From 1958 to 1964, nuclear bomb tests injected a large amount of artificia…
Marine Reservoir Ages in Northern Senegal and Mauritania Coastal Waters
In order to estimate the modern reservoir age of the seawater ( R ) and the corresponding local offset from the global marine radiocarbon calibration curve (δR) for coastal sites of Senegal and Mauritania, we analyzed pre-bomb mollusk shells collected between AD 1837 and 1945. In total, 27 shell samples were measured, including 19 from Senegal and 8 from Mauritania. The results for Senegal for the weighted mean of R is 511 ± 50 BP and δR is 176 ±…
Ifan CH.Diop Radiocarbon Laboratory Measurements Ii
New radiocarbon ( 14 C) dates we obtained in our radiocarbon laboratory equipped with a liquid scintillation counter using BGO (Bi4Ge3012) tubes. The electronic stability of the counter gave a background below 0.2 cpm. Our 14 C dates agree well with the interpretations done for the samples. Most of the results in these analyses were obtained on shell samples, charcoal samples, and tree leaves. Calibration of the dates with the appropriate softwar…
Ifan Radiocarbon Laboratory Measurements I
Results obtained from a liquid scintillation counter using BGO (Bi 4 Ge 3 0 12 ) tubes have produced more precise radiocarbon dates in our laboratory. Duplicate analyses confirm the electronic stability of the counter with a background of 0.1 cpm. Our 14 C dates agree well with those from another laboratory (Paris 6-LOCEAN). Most of the 14 C dates in this study were obtained on samples taken from different archaeological sites. Calibration of the…
Rehabilitation of the Laboratoire De Carbone 14-Dakar (Senegal) with a Super Low-Level Liquid Scintillation Counting System
Following the passing of Prof Cheikh Anta Diop in 1986, the radiocarbon laboratory (LC14) he created 20 yr earlier at the Institut Francophone d'Afrique Noire (IFAN), Dakar, Senegal, fell into a long hibernation. It took nearly 3 yr to renovate the laboratory and reinstall new equipment in order to return LC14 to full functionality and resume its activity. A new dating system has been implemented around a super low-level liquid scintillation spec…
Marine Reservoir Ages in Northern Senegal and Mauritania Coastal Waters
In order to estimate the modern reservoir age of the seawater ( R ) and the corresponding local offset from the global marine radiocarbon calibration curve (δR) for coastal sites of Senegal and Mauritania, we analyzed pre-bomb mollusk shells collected between AD 1837 and 1945. In total, 27 shell samples were measured, including 19 from Senegal and 8 from Mauritania. The results for Senegal for the weighted mean of R is 511 ± 50 BP and δR is 176 ±…
Ifan Radiocarbon Laboratory Measurements I
Results obtained from a liquid scintillation counter using BGO (Bi 4 Ge 3 0 12 ) tubes have produced more precise radiocarbon dates in our laboratory. Duplicate analyses confirm the electronic stability of the counter with a background of 0.1 cpm. Our 14 C dates agree well with those from another laboratory (Paris 6-LOCEAN). Most of the 14 C dates in this study were obtained on samples taken from different archaeological sites. Calibration of the…
Anthropogenic CO 2 in the Dakar (Senegal) Urban Area Deduced from 14 C Concentration in Tree Leaves
Radiocarbon ( 14 C) in atmospheric CO 2 for the Dakar (Senegal) urban area was measured using tree leaves collected by botanists from 1900 to 2003. The aim of our study was to compare the local Suess effect in Dakar to the global one during the 20th century. The ∆ 14 C of atmospheric CO 2 in this region decreased from 1900 to 1958 during the pre-bomb era (–2±5‰ to –22±4‰). From 1958 to 1964, nuclear bomb tests injected a large amount of artificia…
Ifan CH.Diop Radiocarbon Laboratory Measurements Ii
New radiocarbon ( 14 C) dates we obtained in our radiocarbon laboratory equipped with a liquid scintillation counter using BGO (Bi4Ge3012) tubes. The electronic stability of the counter gave a background below 0.2 cpm. Our 14 C dates agree well with the interpretations done for the samples. Most of the results in these analyses were obtained on shell samples, charcoal samples, and tree leaves. Calibration of the dates with the appropriate softwar…
Geography (5 works) · Geology (5 works) · Radiocarbon dating (5 works) · Chemistry (4 works) · Geology and Paleoclimatology Research (4 works) · Archaeology (3 works) · Archaeology and ancient environmental studies (3 works) · Environmental Science (3 works) · Liquid scintillation counting (3 works) · Paleontology (3 works)