Ilon Gábor szerk.: Pápai Múzeumi Értesítő 1. (Pápa, 1988)

VARGA István - SÜVEGH Gábor - NAGYNÉ CZAKÓ Ilona: Egy későbronzkori kerámia komplett vizsgálata

The Mössbauer spectroscopic analysis revealed three different iron positions in the specimen. A doublet belonging to Fe/II/ in octahedral position, a Fe /III/ doublet, and a magnetically split component appeared in the room temperature spectrum /Fig. 1./ The Fe /II/ doublet can be attributed undoubtedly to Fe/II/ in clay mineral /illite/,while the magnetic component represents magnetite. The central Fe/III/ doublet is very much probably a superposition of several doublets with very similar Mössbauer parameters, which could not be separated even by computer.These components are as follows: octahedrally coordinated Fe/III/ in the clay, goethite of small particle size and hematite with small particles. This haematite formed probably by the partial thermal decomposition of goethite The Mössbauer spectrum of the reddish-brown phase of the ceramics showed that the Fe /II/ was partially oxidized to Fe/III/. Summary : Variouds methods, nemely Mössbauer spectroscopy, Laser emission spectroscopy, optical mineralogy, differential thermo analysis /DTA/

.Röntgen diffraction analysis have been applied to study a ceramics from the late Bronze age. We found, that the specimen had been fired between 400 and 500 *C and its black colour had been created by the carbon incorporated into the ceramics. JEGYZETEK 1. Ilon Gábor

: Veszprém Megyei Múzeumok Közleményei /VMMK/ 17/1984/ 69-79. 2. Ilon Gábor

: VMMK 18 /1986/ 83-93. 3. Nagy Béláné, ELTE - szóbeli közlés. 4. Földi Tamásné, ELTE - szóbeli közlés. 5. Duma György

: Építőanyag /1962/, 463-469. 6. Lovas György, ELTE - szóbeli közlés. 7. Wagner,U., et. al., Hyperfine Interactions, in. press. B. Duma György : Múzeumi Műtárgyvédelem 7 =1980/, 13-26. 9. Puskás Zuárd, ELTE - szóbeli közlés Address of author: I. Varga H - 85Ö0 Pápa Torma L. u. 14.