Age of an Indonesian Fossil Tooth Determined by Electron Paramagnetic Resonance

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Description

The first fossil hominid tooth recovered during 1999 excavations from the Cisanca River region in West Java, Indonesia, was associated with a series of bovid teeth from a single individual that was recovered 190 cm beneath the hominid tooth. The age of the fossil bovid teeth was determined using electron paramagnetic resonance (EPR) analysis as part of an effort to bracket the age of the hominid tooth. The EPR-derived age of the bovid teeth is (5.16 {+-} 2.01) x 10{sup 5} years. However, the age estimate reported here is likely an underestimate of the actual age of deposition since evidence ... continued below

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25 pages

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Bogard, JS April 7, 2004.

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Description

The first fossil hominid tooth recovered during 1999 excavations from the Cisanca River region in West Java, Indonesia, was associated with a series of bovid teeth from a single individual that was recovered 190 cm beneath the hominid tooth. The age of the fossil bovid teeth was determined using electron paramagnetic resonance (EPR) analysis as part of an effort to bracket the age of the hominid tooth. The EPR-derived age of the bovid teeth is (5.16 {+-} 2.01) x 10{sup 5} years. However, the age estimate reported here is likely an underestimate of the actual age of deposition since evidence of heating was detected in the EPR spectra of the bovid teeth, and the heating may have caused a decrease in the intensity of EPR components on which the age calculation is based.

Physical Description

25 pages

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  • Other Information: PBD: 7 Apr 2004

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  • Report No.: ORNL/TM-2004/85
  • Grant Number: AC05-00OR22725
  • DOI: 10.2172/838101 | External Link
  • Office of Scientific & Technical Information Report Number: 838101
  • Archival Resource Key: ark:/67531/metadc787079

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  • April 7, 2004

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • June 22, 2016, 3:35 p.m.

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Bogard, JS. Age of an Indonesian Fossil Tooth Determined by Electron Paramagnetic Resonance, report, April 7, 2004; United States. (digital.library.unt.edu/ark:/67531/metadc787079/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.