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Title: Protactinium-231 dating of carbonates by thermal ionization mass spectrometry: Implications for quaternary climate change

Abstract

Measurement of protactinium-231 ({sup 231}Pa) in carbonates by thermal ionization mass spectroscopy yields {sup 231}Pa ages that are more than 10 times more precise than those determined by decay counting. Carbonates between 10 and 250,000 years old can now be dated with {sup 231}Pa methods. Barbados corals that have identical {sup 231}Pa and thorium-230 ({sup 230}Th) ages indicate that the timing of sea level change over parts of the last glacial cycle is consistent with the predictions of the Astronomical Theory. Two Devils Hole calcite subsamples record identical {sup 231}Pa and {sup 230}Th ages, suggesting that the chronology of this climate record is accurate. 24 refs., 4 figs., 1 tab.

Authors:
;  [1]; ;  [2]
  1. Univ. of Minnesota, Minneapolis, MN (United States)
  2. Los Alamos National Lab., NM (United States)
Publication Date:
OSTI Identifier:
476673
Resource Type:
Journal Article
Journal Name:
Science
Additional Journal Information:
Journal Volume: 276; Journal Issue: 5313; Other Information: PBD: 2 May 1997
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; QUATERNARY PERIOD; PALEOCLIMATOLOGY; SEA LEVEL; CARBONATES; AGE ESTIMATION; PROTACTINIUM 231; CORALS

Citation Formats

Edwards, R L, Cheng, H, Murrell, M T, and Goldstein, S J. Protactinium-231 dating of carbonates by thermal ionization mass spectrometry: Implications for quaternary climate change. United States: N. p., 1997. Web. doi:10.1126/science.276.5313.782.
Edwards, R L, Cheng, H, Murrell, M T, & Goldstein, S J. Protactinium-231 dating of carbonates by thermal ionization mass spectrometry: Implications for quaternary climate change. United States. https://doi.org/10.1126/science.276.5313.782
Edwards, R L, Cheng, H, Murrell, M T, and Goldstein, S J. 1997. "Protactinium-231 dating of carbonates by thermal ionization mass spectrometry: Implications for quaternary climate change". United States. https://doi.org/10.1126/science.276.5313.782.
@article{osti_476673,
title = {Protactinium-231 dating of carbonates by thermal ionization mass spectrometry: Implications for quaternary climate change},
author = {Edwards, R L and Cheng, H and Murrell, M T and Goldstein, S J},
abstractNote = {Measurement of protactinium-231 ({sup 231}Pa) in carbonates by thermal ionization mass spectroscopy yields {sup 231}Pa ages that are more than 10 times more precise than those determined by decay counting. Carbonates between 10 and 250,000 years old can now be dated with {sup 231}Pa methods. Barbados corals that have identical {sup 231}Pa and thorium-230 ({sup 230}Th) ages indicate that the timing of sea level change over parts of the last glacial cycle is consistent with the predictions of the Astronomical Theory. Two Devils Hole calcite subsamples record identical {sup 231}Pa and {sup 230}Th ages, suggesting that the chronology of this climate record is accurate. 24 refs., 4 figs., 1 tab.},
doi = {10.1126/science.276.5313.782},
url = {https://www.osti.gov/biblio/476673}, journal = {Science},
number = 5313,
volume = 276,
place = {United States},
year = {Fri May 02 00:00:00 EDT 1997},
month = {Fri May 02 00:00:00 EDT 1997}
}