Re: The Vinland Map's Ink

David wrote:

"I took that to mean that McCrone's evidence was suspect :-) "

David is right! That's the correct interpretation. There was a feeling
that McCrone may have made some mistakes (which he did) and that was
part of the reason that Cahill et al. were retained by Yale to
reevaluate the Map using a different approach. They could have shown
that McCrone was wrong but, in fact, they provided him support even,
though they got the quantitative aspects of their analysis wrong. They
found Ti as the most common element in the ink (of the elements above
sodium) and also that it was consistently present in higher amounts in
the ink than on the parchment. In fact, only 5 of 33 ink-parchment
pairs had Ti on the parchment above the minimum detectable limit. If
there is any anatase on the parchment it is trivial compared with that
in the ink. Brown & Clark subsequently reconfirmed this observation. It
is difficult to see how this anatase with a modern appearance (free of
clay minerals) and present in the yellow organic binder UNDERLYING the
black carbon component, could have been added later, even if such a
bizarre and atypical combination had been a medieval concoction.

.

Relevant Pages

  • Re: The Vinland Maps Ink
    ... >David is right! ... >that McCrone may have made some mistakes and that was ... >pairs had Ti on the parchment above the minimum detectable limit. ...
    (sci.archaeology)
  • Re: The Vinland Maps Ink
    ... > that McCrone may have made some mistakes and that was ... > the ink than on the parchment. ... "..McCrone's observation of anatase (TiO2) in the ink of the Vinland ...
    (sci.archaeology)
  • Re: The Vinland Map Find Or Fraud?
    ... > possibly related to clay was raised in the aftermath of the original 1974 ... alternative possibility of how the TiO2 got into the ink! ... But NOT examined further by McCrone apparently so there was nothing ... anatase as found on the map CAN be found and DOES exist in nature. ...
    (sci.archaeology)
  • Re: The Vinland Maps Ink
    ... the current state of the evidence (the ink evidence as well as ... >>>of a document drawn on parchment using iron gall ink several hundred years ... >direct quotation of your position) regarding the lines on the Vinland Map ... it is interesting that you have criticized Brown/Clark and McCrone ...
    (sci.archaeology)
  • Re: The Vinland Maps Ink
    ... That a medieval scribe did ... the current state of the evidence (the ink evidence as well as ... direct quotation of your position) regarding the lines on the Vinland Map ... it is interesting that you have criticized Brown/Clark and McCrone ...
    (sci.archaeology)