Результаты исследований: Научные публикации в периодических изданиях › статья в журнале по материалам конференции › Рецензирование
Perspectives of application of the 230Th/U method of geochronometry for determining the age of Quarternary fossil fauna of the Arctic region. / Starikova, A. A.; Yu Petrov, A.; Maksimov, F. E.; Levchenko, S. B.
в: IOP Conference Series: Earth and Environmental Science , Том 263, № 1, 012058, 13.05.2019.Результаты исследований: Научные публикации в периодических изданиях › статья в журнале по материалам конференции › Рецензирование
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TY - JOUR
T1 - Perspectives of application of the 230Th/U method of geochronometry for determining the age of Quarternary fossil fauna of the Arctic region
AU - Starikova, A. A.
AU - Yu Petrov, A.
AU - Maksimov, F. E.
AU - Levchenko, S. B.
PY - 2019/5/13
Y1 - 2019/5/13
N2 - Perspectives of the 230Th/U method for dating the fossil bones of mammoths, widespread in sediments of the Arctic region, are considered. Determination of uranium and thorium contents in well-preserved mammoth bone samples with known radiocarbon age was carried out and the prerequisites for the 230Th/U method were tested. It was revealed that the external and middle layers of bones can be geochemical barriers that make it difficult for dissolved uranium to enter the internal layers during post-sedimentation time. Thus, the internal layers can be attributed to conditionally closed radiometric systems. In some cases, 230Th/U age of these layers is similar to radiocarbon data. 230Th/U age in the range of 100 thousand years was obtained for the sample with the direct radiocarbon age. The results suggest that using the 230Th/U method for determining the age of mammoth bones is possible under certain conditions.
AB - Perspectives of the 230Th/U method for dating the fossil bones of mammoths, widespread in sediments of the Arctic region, are considered. Determination of uranium and thorium contents in well-preserved mammoth bone samples with known radiocarbon age was carried out and the prerequisites for the 230Th/U method were tested. It was revealed that the external and middle layers of bones can be geochemical barriers that make it difficult for dissolved uranium to enter the internal layers during post-sedimentation time. Thus, the internal layers can be attributed to conditionally closed radiometric systems. In some cases, 230Th/U age of these layers is similar to radiocarbon data. 230Th/U age in the range of 100 thousand years was obtained for the sample with the direct radiocarbon age. The results suggest that using the 230Th/U method for determining the age of mammoth bones is possible under certain conditions.
UR - http://www.scopus.com/inward/record.url?scp=85068212778&partnerID=8YFLogxK
U2 - 10.1088/1755-1315/263/1/012058
DO - 10.1088/1755-1315/263/1/012058
M3 - Conference article
AN - SCOPUS:85068212778
VL - 263
JO - IOP Conference Series: Earth and Environmental Science
JF - IOP Conference Series: Earth and Environmental Science
SN - 1755-1307
IS - 1
M1 - 012058
T2 - International Conference on Arctic Biomonitoring 2018
Y2 - 26 November 2018 through 27 November 2018
ER -
ID: 52427007