Chinga History

Name: Chinga
Location: Tanna Tuva, Turvinskaya

Type: Ni-Rich Ataxite IVB Anom

Chinga, Tanna Tuva, Turvinskaya, U.S.S.R. - Ni-Rich Ataxite Ivb Anom - Iron Meteorite - About 30 fragments weighting between 85 grams to 20 kilograms were found scattered along the Chinga stream in 1912. The canyon-forming creek runs into Urgailyk. This empties in Elegest, which again is a tributary to Yenisey from the high mountains of Tannu Ola. The material had already been examined by Backlund & Khlopin (1915), who, however, believed that it was of terrestrial origin. Pehrman (1923) reexamined it and, assuming that he had identified fusion crust and regmaglypts, concluded that it was in fact, meteoritic. In the years 1910-1950, when the creeks of this area were exploited for gold, "native iron" was found on several occasions; thus, in 1948, a 7.5 kilogram fragment was discovered by the prospector-geologist A.L. Dodin. In another case, in 1929, S. Ivanov found a cluster of at least 20 individuals. Some were forged into spikes and nails, others reached museums in Moscow, Kyzyl, Irkutsk, Alma-Ata and Minusinsk. Since the majority of the fragments had a flattened, somewhat curved form, often with sharp torn edges, the original mass could have been a crater-producing meteorite like Henbury. The crater was thought to have disappeared through erosion or simply to have passed unnoticed, since, in 1912, little attention was paid to crater-producing meteorites. Field work was carried out in 1963 in order to test the crater theory, but no crater was ever found. It was concluded that the fall had been a small shower and that erosion had eliminated all traces of the impact. It is not known when this meteorite fell and about 80 kilograms in weight was recovered.

This meteorite was published in the Meteoritical Society Bulletin No. 13
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