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Thread: Problem with Earth core Pb210 dating

  1. #1 Problem with Earth core Pb210 dating 
    Forum Professor Zwolver's Avatar
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    May 2006
    As you know, Certain elements work best in certain timeframes. Pb210 would work great as a tool measuring dates up to 180 years. For sedimentation and aggregates on river banks, and sediment active lakes.

    As a side "hobby" at work (faculty geosciences at university), i have taken it on myself to improve on the calculation method, and see if i can make a more clear profile of depth and age.

    I wonder who has experience beyond a beginners experience. Or a way to use statistics on a way to determine real accumulation points on a line, and a line plot. Also, how does a nonlinear sedimentation rate affect this, and how can you detect it, when there are no other markers, like a salt/fresh barrier, a Cesium 137 peak for nuclear testing sites or Chernobyl.

    I also wonder how you change the model when the background U238 to Pb214 and Pb210, and Thorium to Pb212, is increased (10x higher than expected)

    Right now, i work with only two models, one with a plot of a set sedimentation speed, and one where it is not set, but dependent on the slope between two points.

    Growing up, i marveled at star-trek's science, and ignored the perfect society. Now, i try to ignore their science, and marvel at the society.

    Imagine, being able to create matter out of thin air, and not coming up with using drones for boarding hostile ships. Or using drones to defend your own ship. Heck, using drones to block energy attacks, counterattack or for surveillance. Unless, of course, they are nano-machines in your blood, which is a billion times more complex..
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