It's hard to tell anything definite unless you know the size of the object but if what I found is right then a "Rod (rd) A unit of length equal to 16.5 feet".
This would give the object a size of 150x225 meter! I don't think you would find a meteorite of that size intact. You would have a major crater instead. (OK, I'm pretty shure on it :-) A meteorite strike of that size is a regional catastrophy according to a NASA scientist.
The mineralogical part doesn't sound like a meteorite, although I'm more at home with earth mineralogy and geology. The talc and carbonates is common in earth environments.
The geological part is also all wrong. To find granite in the center sounds to me like a granitic intrusion in a serpentinite and that the altered rocks around the granite got more resilient towards weathering. We have a few serpentinite mountains in Sweden that stands out from the surrounding geology. The surface is also quite different from the surrounding rocks. It's in the background of this photo. http://www.geology.neab.net/photos/atok001.jpg Theese mountains are tough enough to withstand an ice age. The last one was 7000 years ago and the thickness at least 500m above the peak of the mountain.
It is by all means a meteowrong and a earthbased geological feature.
As a sidenote there were a meteorite found in sweden almost 100 years ago with fossiles in it. Anyone want to debunk that one?
:-)
/Göran
chris aubeck wrote:
Dear list,
I would very much like to know how much of the following may be based on scientific procedure and observation, and whether as a whole it makes any sense at all. I found the text in an article dated originally to 1864 and have translated it to the best of my ability from Spanish (in which I'm fluent, but this was very technical). It was published in Argentina.
As usual with this kind of thing, I don't know where to turn, except to the experienced guys on this list.
I'll be doing the internet equivalent of sitting "glued to the screen" hoping someone can enlighten me!
Very best,
Chris
*****************************************************
I came across a great black rock, ovoid in shape and
measuring around 30 rods in diameter in its widest
part by 45 rods in length. I was quite astonished on
seeing such a large, isolated stone, in the middle of
the plains; what caught my attention above all was its
dark and vitrified appearance at first sight. I
examined it thoroughly and shortly I had no doubt, I
was standing before an aerolite… but few of such
enormity have been found to date.
Enthused by my discovery I telegraphed Mr. Smith (a
geologist and a friend of mine who was then in Córdoba
on the way to the mountains) to come and examine this
curious piece of planetary matter. This he did and a
few days later my friend Mr. Smith, Mr. Jones and I
went off to investigate the aerolite scientifically.
On the afternoon of the same day we began to bore a
hole into it to analyze the diverse materials of which
its interior was composed, and for this purpose we
employed an Argentine laborer named Jesús Villegas.
A notable feature, at first sight, are the cracks and
crags from which considerable pieces must have come
loose: the whole mass is covered in a certain black
enamel, from 3 to 9 ½ inches thick. The interior
contains 5% graphitic carbon, magnetic iron sulphate,
a magnesium and iron carbonate, which could be
considered a kind of breu merite, an extremely rare
substance; silica, talc, some complex minerals that
are not to be found on earth, for example,
Sheibirsite, which is a double phosphorus of iron and
nickel, ammonium hydrochloride, a very volatile salt,
whose presence in the aerolite proves that the candent
state of the surface did not last a long time and that
the heat did not penetrate to the interior of the
mass, and this concords with the low conductivity of
its composition, and finally it contained cesium and
some alkaline silicates that we are not familiar with.
At seven rods we have found ophite; at 15, granite.
The stone was very hard and our boring progressed very
slowly.
******************************************************
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