Highly variable freshwater reservoir offsets found along the Upper Lena Watershed, Cis-Baikal, Southeast Siberia
A program of paired dating of human and faunal remains on a sample of 11 prehistoric (Mesolithic/Neolithic to Early Bronze Age) graves in the Upper Lena basin, southeast Siberia, was initiated to investigate the freshwater reservoir effect (FRE). The results show the presence of a substantial but hi...
Published in: | Radiocarbon |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Cambridge University Press
2018
|
Subjects: | |
Online Access: | https://doi.org/10.2458/azu_rc.57.18458 https://ora.ox.ac.uk/objects/uuid:7275abc8-1a96-4413-8596-0f7869ec5d36 |
id |
ftuloxford:oai:ora.ox.ac.uk:uuid:7275abc8-1a96-4413-8596-0f7869ec5d36 |
---|---|
record_format |
openpolar |
spelling |
ftuloxford:oai:ora.ox.ac.uk:uuid:7275abc8-1a96-4413-8596-0f7869ec5d36 2023-05-15T17:07:40+02:00 Highly variable freshwater reservoir offsets found along the Upper Lena Watershed, Cis-Baikal, Southeast Siberia Schulting, R Bronk Ramsey, C Bazaliiskii, V Weber, A 2018-02-21 https://doi.org/10.2458/azu_rc.57.18458 https://ora.ox.ac.uk/objects/uuid:7275abc8-1a96-4413-8596-0f7869ec5d36 unknown Cambridge University Press doi:10.2458/azu_rc.57.18458 https://ora.ox.ac.uk/objects/uuid:7275abc8-1a96-4413-8596-0f7869ec5d36 https://doi.org/10.2458/azu_rc.57.18458 info:eu-repo/semantics/embargoedAccess Journal article 2018 ftuloxford https://doi.org/10.2458/azu_rc.57.18458 2022-06-28T20:15:22Z A program of paired dating of human and faunal remains on a sample of 11 prehistoric (Mesolithic/Neolithic to Early Bronze Age) graves in the Upper Lena basin, southeast Siberia, was initiated to investigate the freshwater reservoir effect (FRE). The results show the presence of a substantial but highly variable offset, ranging from 255 to 101014C yr. In contrast to previous studies centered on Lake Baikal and the Angara River, human stable nitrogen isotope values show little or no correlation with the radiocarbon offset, despite the clear trophic differences seen in δ15N between terrestrial and aquatic sources of protein in the region’s isotope ecology. However, stable carbon isotope measurements show a moderate negative correlation of some predictive value (r = –0.70, p = 0.016, df = 10). Two different regression equations have been calculated, the first using human δ13C values for the entire data set (r2 = 0.49) and the second, using both δ13C and δ15N values, limited to the Early Bronze Age of the southern Upper Lena (r2 = 0.84, p = 0.030, df = 5). The source of the old carbon in the Upper Lena River system is not clear. While the river flows over carbonate bedrock and is moderately alkaline, we suggest that old terrestrial carbon entering the riverine foodweb through bank erosion and other processes is a more likely candidate for the majority of the14C offset. Article in Journal/Newspaper lena river Siberia ORA - Oxford University Research Archive Radiocarbon 57 4 581 593 |
institution |
Open Polar |
collection |
ORA - Oxford University Research Archive |
op_collection_id |
ftuloxford |
language |
unknown |
description |
A program of paired dating of human and faunal remains on a sample of 11 prehistoric (Mesolithic/Neolithic to Early Bronze Age) graves in the Upper Lena basin, southeast Siberia, was initiated to investigate the freshwater reservoir effect (FRE). The results show the presence of a substantial but highly variable offset, ranging from 255 to 101014C yr. In contrast to previous studies centered on Lake Baikal and the Angara River, human stable nitrogen isotope values show little or no correlation with the radiocarbon offset, despite the clear trophic differences seen in δ15N between terrestrial and aquatic sources of protein in the region’s isotope ecology. However, stable carbon isotope measurements show a moderate negative correlation of some predictive value (r = –0.70, p = 0.016, df = 10). Two different regression equations have been calculated, the first using human δ13C values for the entire data set (r2 = 0.49) and the second, using both δ13C and δ15N values, limited to the Early Bronze Age of the southern Upper Lena (r2 = 0.84, p = 0.030, df = 5). The source of the old carbon in the Upper Lena River system is not clear. While the river flows over carbonate bedrock and is moderately alkaline, we suggest that old terrestrial carbon entering the riverine foodweb through bank erosion and other processes is a more likely candidate for the majority of the14C offset. |
format |
Article in Journal/Newspaper |
author |
Schulting, R Bronk Ramsey, C Bazaliiskii, V Weber, A |
spellingShingle |
Schulting, R Bronk Ramsey, C Bazaliiskii, V Weber, A Highly variable freshwater reservoir offsets found along the Upper Lena Watershed, Cis-Baikal, Southeast Siberia |
author_facet |
Schulting, R Bronk Ramsey, C Bazaliiskii, V Weber, A |
author_sort |
Schulting, R |
title |
Highly variable freshwater reservoir offsets found along the Upper Lena Watershed, Cis-Baikal, Southeast Siberia |
title_short |
Highly variable freshwater reservoir offsets found along the Upper Lena Watershed, Cis-Baikal, Southeast Siberia |
title_full |
Highly variable freshwater reservoir offsets found along the Upper Lena Watershed, Cis-Baikal, Southeast Siberia |
title_fullStr |
Highly variable freshwater reservoir offsets found along the Upper Lena Watershed, Cis-Baikal, Southeast Siberia |
title_full_unstemmed |
Highly variable freshwater reservoir offsets found along the Upper Lena Watershed, Cis-Baikal, Southeast Siberia |
title_sort |
highly variable freshwater reservoir offsets found along the upper lena watershed, cis-baikal, southeast siberia |
publisher |
Cambridge University Press |
publishDate |
2018 |
url |
https://doi.org/10.2458/azu_rc.57.18458 https://ora.ox.ac.uk/objects/uuid:7275abc8-1a96-4413-8596-0f7869ec5d36 |
genre |
lena river Siberia |
genre_facet |
lena river Siberia |
op_relation |
doi:10.2458/azu_rc.57.18458 https://ora.ox.ac.uk/objects/uuid:7275abc8-1a96-4413-8596-0f7869ec5d36 https://doi.org/10.2458/azu_rc.57.18458 |
op_rights |
info:eu-repo/semantics/embargoedAccess |
op_doi |
https://doi.org/10.2458/azu_rc.57.18458 |
container_title |
Radiocarbon |
container_volume |
57 |
container_issue |
4 |
container_start_page |
581 |
op_container_end_page |
593 |
_version_ |
1766063143225655296 |