Re: Kensington Runestone - Nielsen and Wolters.


"Eric Stevens" <eric.stevens@xxxxxxxxx> skrev i meddelandet
news:2og0s1tn2i5l5gn3p86l12l0i94lqc8fpj@xxxxxxxxxx
> On Sat, 7 Jan 2006 12:40:54 +0100, "Peter Alaca" <P.Alaca@xxxxxx>
> wrote:
>
> >I E_Johansson wrote: ReNvf.42162$d5.198234@xxxxxxxxxxxxxxx,
> >> "Peter Alaca"skrev
> >>> Eric Stevens wrote:
> >>> > "Peter Alaca" wrote:
> >>>>> Eric Stevens wrote:
> >>>>>> "Peter Alaca" wrote:
> >>>>>>> Daryl Krupa wrote:
> >
> >>>>>>>> If anthropogenic acids have been responsible for at least some
> >>>>>>>> of the weathering of the Maine tombstones, and have been
> >>>>>>>> responsible for their appearance of great age, then perhaps
> >>>>>>>> those acids are also responsible for the appearance of great
> >>>>>>>> age of some of the surfaces of the KRS.
> >
> >>>>>>> How about this:
> >>>>>>> [...]
> >>>>>
> >>>>>>> Laila Kitzler Åhfeldt (2002), "Work and Worship -
> >>>>>>> Laser Scanner Analysis of Viking Age Rune Stones"
> >>>>>>> page 21
> >>>
> >>>>>> Apart from the fact that the quoted text is very general in nature
> >>> ...
> >>>
> >>>>> You mean that Arrhenius and Trotzig
> >>>>> say nothing about the KRS?
> >>>
> >>>>>> ... and applies to rune-texts carved in rock significantly
> >>>>>> different from that of the KRS, ...
> >>>
> >>>>> Are you sure?
> >>>
> >>>> Granite for the most part.
> >>>
> >>> "Rune stones were made primarily from
> >>> crystalline rocks (i.e. granite and gneiss),
> >>> until the end of the 11th century when
> >>> sandstone rune stones become common."
> >>> [Åhfeldt (2002), page 21]
> >>>
> >>> And since you stated in another recent reply
> >>> to Steve Marcus that
> >>> "The question is not weathering of stone
> >>> in general but the weathering of biotite in
> >>> particular. Biotite is common to both the
> >>> KRS and the tombstones."
> >>> you must be aware of the fact that biotite is
> >>> common in granite and gneiss.
> >>> So, what is that significant difference between
> >>> the KRS and Scandinavian runestones as far as
> >>> natural and artificial weathering is concerned?
> >>
> >> 1) apart from the Liljestone(1000's century) found in the basement of
> >> St Lars Church in Linköping I am not aware of any of the Scandinavian
> >> carved stones, runestones or picturestones, who been faced down in
> >> same type of soil as KRS has been. A stone out in the open and a
> >> stone face down in soil undergo different type of weathering.
> >
> >Yes, the face of a stone facedown under ground
> >is always moist and therefore always under
> >influence of possible acidic soil conditions.
>
> Tsk tsk tsk.
>
> pH 7.5 to 8.5 is hardly acid.
>
> >On the other hand are stones in the open 'suffering'
> >from algae, lichen and bird droppings.
> >But who knows how long the KRS stood or lay in the
> >open and how long it was buried?
> >
> >> 2) The acidwater falling over Scandinavia, especially Sweden,
> >> increased from late 1950's to 1990's due to airpollution from England
> >> which didn't fall down until it reach Scandinavia. The acidwater did
> >> cause tremendous changed erosion on Rock Carvings. That's known.
> >> Nothing alike is known from the Minnesota area.
> >>
> >> 3) Temperatur changes causes as you know a lot of the erosion. While
> >> the max and min temperatures aren't that different the sudden changes
> >> in Scandinavia due to different type of Weathersituation are
> >> completely different. Scandinavia is as you know located east of the
> >> Atlantic and close to the coast. Minnesota is inside a large
> >> continent. There you can find part of the answer to your question.
> >>
> >> Inger E
> >
> >But, despite the fact that I mentioned natural
> >weathering in my last reply, we were talking
> >about the possible eroding effect of cleaning
> >runestones with a steel brush and caustic soda.
>
> All kinds of unbelievable things have been done to the KRS but never
> steel brushes or caustic soda as far as I know.

Neither do I.

Inger E
>
>
>
> Eric Stevens
>


.

Relevant Pages

  • Re: Kensington Runestone - Nielsen and Wolters.
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  • Re: Geology Question (KRS related)
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