Perspectives of application of the 230Th/U method of geochronometry for determining the age of Quarternary fossil fauna of the Arctic region

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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.

In: IOP Conference Series: Earth and Environmental Science , Vol. 263, No. 1, 012058, 13.05.2019.

Research output: Contribution to journal › Conference article › peer-review

BibTeX

@article{47b9724af3ab4c448e023ae4e2ad58da,

title = "Perspectives of application of the 230Th/U method of geochronometry for determining the age of Quarternary fossil fauna of the Arctic region",

abstract = "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.",

author = "Starikova, {A. A.} and {Yu Petrov}, A. and Maksimov, {F. E.} and Levchenko, {S. B.}",

year = "2019",

month = may,

day = "13",

doi = "10.1088/1755-1315/263/1/012058",

language = "English",

volume = "263",

journal = "IOP Conference Series: Earth and Environmental Science",

issn = "1755-1307",

publisher = "IOP Publishing Ltd.",

number = "1",

note = "International Conference on Arctic Biomonitoring 2018 ; Conference date: 26-11-2018 Through 27-11-2018",

}

RIS

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