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Re: "Terny"-Crater/ex USSR
Wolfgang Czegka schrieb:
> Dear List,
> want to forward a question of Dr. Schieber from the Ries-Crater
> Museum.
> In the shatter cone collection of the museum is a single cone from a
> crater labelled „Terny USSR“. Does anybody can clear this location.
> (Mistranslation, Synonym). In the Dietz-List a similar name is not
> specified.
> Thanks to all in advance
> Wolfgang
Dear List Members, Hello Mr. Czegka,
My database METCAT has the following entry: Not very much but sth. to
start with
TERNY, USSR, Shock Metamorphosed Quartz
A.A.Val'ter, V.V.Burmistrova and O.P. Sharkin, Shock- metamorphosed
quartz with a Fe-Cr-Ni metallic inclusion from the base of the Terny
astrobleme, Meteoritika, 1986, Issue 45, pp. 131 - 136: A minute
inclusion of composition Fe (0.810) Cr (0.185) Ni (0.005) has been found
in a clast of shock- metamorphosed quartz from a tagamite vein at the
base of the Terny astrobleme (Krivoy R.). The crystallites forming the
inclusion are estimated to be 0.0n micrometers in size, and are
isostructural with iron and chromium (a0 = 0.286 ± 0.001 mm). It is
proposed that the inclusions were captured as they condensed out of the
products of the shock vaporisation. However their composition is not a
direct reflection of any relationship with the elements in the
meteorite as was thought previously, but is ascribed to condensation
differentiation, as a result of which the composition of the inclusion
became near that of the eutectic in the Fe-Cr system (abs. in
Meteoritics, 1987, vol. 22, no.3, p. 295).
Regards, Bernd
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