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Carbon Dates for various Oak Island Artifacts

11/16/2016

3 Comments

 
Picture
By Doug Crowell and Kel Hancock
  Radiocarbon (C-14) dating is one of the most reliable of all the radiometric dating methods.  It has been utilized to scientifically test organic Oak Island artifacts many times since 1967.  The test uses carbon-14, a radioactive isotope of the element that decays away at a steady rate. Organisms intake a certain amount of carbon-14 from the atmosphere while they are alive. By measuring the ratio of the radio isotope to non-radioactive carbon, the amount of carbon-14 decay can be determined, giving a fairly accurate age for the specimen.

Oak Island Compendium and Blockhouse Investigations is pleased to announce that Oak Island Researcher and author Les MacPhie has asked the Compendium to maintain his compilation of Oak Island Carbon Dating Reports for study by the public.  We are honored to be able to do so.  The index for those reports and an overview of the date results are displayed below.  The collection of reports themselves are provided for download as a PDF file via a link at the bottom of this article.  We invite you to dig in to the reports and see which carbon dates support your favorite theory, and which do not! 
Picture
Picture
Go to the Carbon Date Reports Download Link

Thanks for visiting, and goodnight from The Blockhouse!
3 Comments
Andy White
11/16/2016 07:33:27 pm

It looks like your "year" estimates were calculated by simply subtracting the radiocarbon age from 1950? The dates should be run through a calibration program to turn them into calendar year ranges. Try Calib or Oxcal, available online.

Reply
Hammerson Peters link
11/18/2016 05:20:45 am

The coconut fibres' carbon dating is particularly baffling, I think. From what I've read, coconuts didn't reach the New World until the Portuguese brought them over in the late 1400's. Does anyone have any good explanations?

Reply
Craig
11/30/2016 11:06:01 pm

Several things can affect the date estimates from carbon-14 dating according to wikipedia. If plants grow around water with calcium carbonate in it, it will change the C-14 ratio and give a much older date. Same for plants that grow around an active volcano. There are a few other things that can throw off the dates as well, but those two seem to be the ones that would have the most dramatic effect.

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    From The Blockhouse
    is published by Blockhouse Investigations and oakislandcompendium.ca
    in Nova Scotia, Canada

    Editors and Chief Correspondents
    Kelly W. Hancock, CD

    Doug Crowell

    Writers
    Jonathan Guy

    Contributing Writers
    John Wonnacott, P. Eng.
    ​Les MacPhie,P.Eng.

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    Tammy Sloan
    Trevor McFetridge
    ​

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Recommended sites:
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  • Home
  • Blockhouse Blog
    • Past Blockhouse Blog Articles
  • Oak Island
    • About Oak Island >
      • 10X (Shaft # 29)
      • Artifacts
      • Businesses on the Island >
        • Cabins to Rent
        • Sawmill
      • Fort on Oak Island
    • Books >
      • Our Maritimes
    • Legends >
      • The Legend of Oak Island
    • Theories
    • Ghosts and spirits
    • People
  • Research Archives
    • Les MacPhie Archives
    • Wonnacott - Smiths Cove
  • Investigations
    • Investigative Research
  • Files
    • Documents >
      • Carbon Datings - Oak Island
      • Woods Hole Report - Draft 1996
      • Captain W Thompson Letter - 1863
    • Articles >
      • Magazine Articles
      • Newspaper Articles >
        • 1857 Aug 9 - Liverpool Transcript
        • 1857 Aug 20 - Liverpool Transcript
        • 1861 Aug 29 - Liverpool Transcript
        • 1862 Oct - Liverpool Transcript
        • 1863 Feb 19 - Yarmouth Herald
        • 1866 Sep 4 - Boston Post
        • 1897 Jan 17 - The Brooklyn Daily Eagle Sun
        • 1897 Apr 16 - Digby Weekly Courier
        • 1897 May - Truro Daily News
        • 1971 Dec 1 - The Dartmouth Free Press
    • Photos >
      • Oak Island Gallery: a mystery in pictures
    • Maps >
      • Map - Des Barres 1776
    • Members only
  • Chronology
  • About
  • Contact