Abstract
Gamma spectroscopy was used for the determination of radionuclides in sediment cores from the continental shelf off northwest africa to provide age control of the sediment record used for a study of aridification of the Sahel zone. {sup 210}Pb, {sup 226}Ra and {sup 137}Cs were measured in the upper part of a gravity core and the associated multicorer and used for aligning these cores. This provided information about the amount of sediment loss due to the sampling procedure in the upper part of the gravity core. The age model based on the matched profiles extended to 140 years B.P. and the rest of the gravity core was dated by {sup 14}C. The {sup 210}Pb age allowed the estimation of the local radiocarbon reservoir age. Application of {sup 210}Pb and {sup 137}Cs chronology helps to significantly extend paleoclimatic proxy data into the Anthropocene, thereby allowing the comparison of human induced climate change with natural climate variability. (author)
Pittauerova, D.;
Fischer, H. W.;
[1]
Mulitza, S.
[2]
- Institute of Environmental Physics, University of Bremen, Bremen (Germany)
- MARUM - Center for Marine Environmental Sciences, University of Bremen, (Germany)
Citation Formats
Pittauerova, D., Fischer, H. W., and Mulitza, S.
Gamma Spectrometry for Chronology of Recent Sediments. Tracing Human Induced Climate Change in NW Africa.
IAEA: N. p.,
2013.
Web.
Pittauerova, D., Fischer, H. W., & Mulitza, S.
Gamma Spectrometry for Chronology of Recent Sediments. Tracing Human Induced Climate Change in NW Africa.
IAEA.
Pittauerova, D., Fischer, H. W., and Mulitza, S.
2013.
"Gamma Spectrometry for Chronology of Recent Sediments. Tracing Human Induced Climate Change in NW Africa."
IAEA.
@misc{etde_22122050,
title = {Gamma Spectrometry for Chronology of Recent Sediments. Tracing Human Induced Climate Change in NW Africa}
author = {Pittauerova, D., Fischer, H. W., and Mulitza, S.}
abstractNote = {Gamma spectroscopy was used for the determination of radionuclides in sediment cores from the continental shelf off northwest africa to provide age control of the sediment record used for a study of aridification of the Sahel zone. {sup 210}Pb, {sup 226}Ra and {sup 137}Cs were measured in the upper part of a gravity core and the associated multicorer and used for aligning these cores. This provided information about the amount of sediment loss due to the sampling procedure in the upper part of the gravity core. The age model based on the matched profiles extended to 140 years B.P. and the rest of the gravity core was dated by {sup 14}C. The {sup 210}Pb age allowed the estimation of the local radiocarbon reservoir age. Application of {sup 210}Pb and {sup 137}Cs chronology helps to significantly extend paleoclimatic proxy data into the Anthropocene, thereby allowing the comparison of human induced climate change with natural climate variability. (author)}
place = {IAEA}
year = {2013}
month = {Jul}
}
title = {Gamma Spectrometry for Chronology of Recent Sediments. Tracing Human Induced Climate Change in NW Africa}
author = {Pittauerova, D., Fischer, H. W., and Mulitza, S.}
abstractNote = {Gamma spectroscopy was used for the determination of radionuclides in sediment cores from the continental shelf off northwest africa to provide age control of the sediment record used for a study of aridification of the Sahel zone. {sup 210}Pb, {sup 226}Ra and {sup 137}Cs were measured in the upper part of a gravity core and the associated multicorer and used for aligning these cores. This provided information about the amount of sediment loss due to the sampling procedure in the upper part of the gravity core. The age model based on the matched profiles extended to 140 years B.P. and the rest of the gravity core was dated by {sup 14}C. The {sup 210}Pb age allowed the estimation of the local radiocarbon reservoir age. Application of {sup 210}Pb and {sup 137}Cs chronology helps to significantly extend paleoclimatic proxy data into the Anthropocene, thereby allowing the comparison of human induced climate change with natural climate variability. (author)}
place = {IAEA}
year = {2013}
month = {Jul}
}