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Oxygen 18 isotopic analysis of sub-glacial concentrations of the Laurentide Ice Sheet

Journal Article:

Abstract

Calcareous concretions occuring on Grenvillian gneiss have been discovered north of Hull, Quebec. Their structure and isotopic composition (delta/sub PDB//sup 18/O approximately equal to -26%; delta/sub PDB//sup 13/C approximately equal to 0%; /sup 14/C age > 35,000 BP) indicate subglacial conditions of precipitation. It is concluded that they were deposited at the base of the Laurentide ice sheet. Assuming equilibrium conditions with the subglacial film of water during precipitation of calcite, it is possible to define a -27.5 to -31.8% (vs. 'standard mean ocean water' (SMOW)) range for the oxygen-18 content of ice.
Authors:
Hillaire-Marcel, C; [1]  Cailleux, A; [2]  Soucy, J
  1. Quebec Univ., Montreal (Canada)
  2. Observatoire de Paris, Section de Meudon, 92 (France)
Publication Date:
Jul 01, 1979
Product Type:
Journal Article
Reference Number:
AIX-12-575288; EDB-81-132344
Resource Relation:
Journal Name: Can. J. Earth Sci.; (Canada); Journal Volume: 16:7
Subject:
58 GEOSCIENCES; OXYGEN 18; ISOTOPE RATIO; GLACIERS; OXYGEN 16; EVEN-EVEN NUCLEI; ISOTOPES; LIGHT NUCLEI; NUCLEI; OXYGEN ISOTOPES; STABLE ISOTOPES; 580100* - Geology & Hydrology- (-1989)
OSTI ID:
6169761
Country of Origin:
Canada
Language:
French
Other Identifying Numbers:
Journal ID: CODEN: CJESA
Submitting Site:
INIS
Size:
Pages: 1494-1498
Announcement Date:

Journal Article:

Citation Formats

Hillaire-Marcel, C, Cailleux, A, and Soucy, J. Oxygen 18 isotopic analysis of sub-glacial concentrations of the Laurentide Ice Sheet. Canada: N. p., 1979. Web.
Hillaire-Marcel, C, Cailleux, A, & Soucy, J. Oxygen 18 isotopic analysis of sub-glacial concentrations of the Laurentide Ice Sheet. Canada.
Hillaire-Marcel, C, Cailleux, A, and Soucy, J. 1979. "Oxygen 18 isotopic analysis of sub-glacial concentrations of the Laurentide Ice Sheet." Canada.
@misc{etde_6169761,
title = {Oxygen 18 isotopic analysis of sub-glacial concentrations of the Laurentide Ice Sheet}
author = {Hillaire-Marcel, C, Cailleux, A, and Soucy, J}
abstractNote = {Calcareous concretions occuring on Grenvillian gneiss have been discovered north of Hull, Quebec. Their structure and isotopic composition (delta/sub PDB//sup 18/O approximately equal to -26%; delta/sub PDB//sup 13/C approximately equal to 0%; /sup 14/C age > 35,000 BP) indicate subglacial conditions of precipitation. It is concluded that they were deposited at the base of the Laurentide ice sheet. Assuming equilibrium conditions with the subglacial film of water during precipitation of calcite, it is possible to define a -27.5 to -31.8% (vs. 'standard mean ocean water' (SMOW)) range for the oxygen-18 content of ice.}
journal = {Can. J. Earth Sci.; (Canada)}
volume = {16:7}
journal type = {AC}
place = {Canada}
year = {1979}
month = {Jul}
}