Importance of the Radiocarbon Standard Deviation in Determining Relative Sea Levels and Glacial Chronology from East Baffin Island

Deals with the problem of error in estimating relative sea levels and glacial chronology in a small area where radiocarbon dates provide some chronological order, but where the precision of radiometric technique does not allow a clear-cut chronology to be developed on that basis alone. An equation i...

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Published in:ARCTIC
Main Author: Andrews, J.T.
Format: Article in Journal/Newspaper
Language:English
Published: The Arctic Institute of North America 1969
Subjects:
Online Access:https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66240
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spelling ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/66240 2023-05-15T14:19:19+02:00 Importance of the Radiocarbon Standard Deviation in Determining Relative Sea Levels and Glacial Chronology from East Baffin Island Andrews, J.T. 1969-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66240 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66240/50153 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66240 ARCTIC; Vol. 22 No. 1 (1969): March: 1–84; 13-24 1923-1245 0004-0843 Birds Winter ecology info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1969 ftunivcalgaryojs 2022-03-22T21:23:07Z Deals with the problem of error in estimating relative sea levels and glacial chronology in a small area where radiocarbon dates provide some chronological order, but where the precision of radiometric technique does not allow a clear-cut chronology to be developed on that basis alone. An equation is presented to predict postglacial uplift which is defined as the algebraic sum of the equation of the marine limit and the appropriate eustatic sea level correction. Using the head of Ekalugad Fiord as an example, author constructs postglacial uplift and emergence curves on the basis of the equation, and an equidistant diagram showing possible variation in relative sea level. Results indicate that glaciers lingered in the east and central Baffin Island valleys from 5700 to at least 4350 BP. Data for this study were gathered by Geographical Branch field parties during the Baffin Island Project, 1961-67. Importance de la déviation standard du radiocarbone dans la détermination des niveaux marins relatifs et dans les chronologies glaciaires: un exemple pour l'est de l'île de Baffin. L'auteur donne des exemples de l'importance de la déviation standard du radiocarbone dans l'évaluation des niveaux marins relatifs, de même qu'une chronologie glaciaire locale. Il décrit les techniques d'évaluation des données. Dans la première étape de l'émergence postglaciaire, des incertitudes sur l'âge radiocarbone d'un échantillon, qu'on présume dater la limite marine, peuvent conduire à une erreur de vingt pour cent dans l'altitude estimée des niveaux marins inférieurs. Aussi récemment que 4.300 années-radiocarbone avant aujourd'hui, des langues glaciaires alimentées par la calotte intérieure de l'île de Baffin atteignaient le niveau de la mer, tout au moins dans la région étudiée ici. Article in Journal/Newspaper Arctic Baffin Island Baffin University of Calgary Journal Hosting Baffin Island Dater ENVELOPE(-64.825,-64.825,-67.145,-67.145) Ekalugad Fiord ENVELOPE(-68.614,-68.614,68.768,68.768) ARCTIC 22 1
institution Open Polar
collection University of Calgary Journal Hosting
op_collection_id ftunivcalgaryojs
language English
topic Birds
Winter ecology
spellingShingle Birds
Winter ecology
Andrews, J.T.
Importance of the Radiocarbon Standard Deviation in Determining Relative Sea Levels and Glacial Chronology from East Baffin Island
topic_facet Birds
Winter ecology
description Deals with the problem of error in estimating relative sea levels and glacial chronology in a small area where radiocarbon dates provide some chronological order, but where the precision of radiometric technique does not allow a clear-cut chronology to be developed on that basis alone. An equation is presented to predict postglacial uplift which is defined as the algebraic sum of the equation of the marine limit and the appropriate eustatic sea level correction. Using the head of Ekalugad Fiord as an example, author constructs postglacial uplift and emergence curves on the basis of the equation, and an equidistant diagram showing possible variation in relative sea level. Results indicate that glaciers lingered in the east and central Baffin Island valleys from 5700 to at least 4350 BP. Data for this study were gathered by Geographical Branch field parties during the Baffin Island Project, 1961-67. Importance de la déviation standard du radiocarbone dans la détermination des niveaux marins relatifs et dans les chronologies glaciaires: un exemple pour l'est de l'île de Baffin. L'auteur donne des exemples de l'importance de la déviation standard du radiocarbone dans l'évaluation des niveaux marins relatifs, de même qu'une chronologie glaciaire locale. Il décrit les techniques d'évaluation des données. Dans la première étape de l'émergence postglaciaire, des incertitudes sur l'âge radiocarbone d'un échantillon, qu'on présume dater la limite marine, peuvent conduire à une erreur de vingt pour cent dans l'altitude estimée des niveaux marins inférieurs. Aussi récemment que 4.300 années-radiocarbone avant aujourd'hui, des langues glaciaires alimentées par la calotte intérieure de l'île de Baffin atteignaient le niveau de la mer, tout au moins dans la région étudiée ici.
format Article in Journal/Newspaper
author Andrews, J.T.
author_facet Andrews, J.T.
author_sort Andrews, J.T.
title Importance of the Radiocarbon Standard Deviation in Determining Relative Sea Levels and Glacial Chronology from East Baffin Island
title_short Importance of the Radiocarbon Standard Deviation in Determining Relative Sea Levels and Glacial Chronology from East Baffin Island
title_full Importance of the Radiocarbon Standard Deviation in Determining Relative Sea Levels and Glacial Chronology from East Baffin Island
title_fullStr Importance of the Radiocarbon Standard Deviation in Determining Relative Sea Levels and Glacial Chronology from East Baffin Island
title_full_unstemmed Importance of the Radiocarbon Standard Deviation in Determining Relative Sea Levels and Glacial Chronology from East Baffin Island
title_sort importance of the radiocarbon standard deviation in determining relative sea levels and glacial chronology from east baffin island
publisher The Arctic Institute of North America
publishDate 1969
url https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66240
long_lat ENVELOPE(-64.825,-64.825,-67.145,-67.145)
ENVELOPE(-68.614,-68.614,68.768,68.768)
geographic Baffin Island
Dater
Ekalugad Fiord
geographic_facet Baffin Island
Dater
Ekalugad Fiord
genre Arctic
Baffin Island
Baffin
genre_facet Arctic
Baffin Island
Baffin
op_source ARCTIC; Vol. 22 No. 1 (1969): March: 1–84; 13-24
1923-1245
0004-0843
op_relation https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66240/50153
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66240
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