M. Járó - L. Költő szerk.: Archaeometrical research in Hungary (Budapest, 1988)

Selected Bibliography - Summaries

Óvári F.: Corrosion of Roman coins in the soil = 108th Event of the European Federation of Corrosion, Siófok, 1980 p. 85. By means of the examination of polished cross-sectional samples of coins originating in the fourth century it has been found that certain earth metals and alkaline earth metals became diffused from the soil into the metal coins in the course of centuries. By means of laser-microspectrochemical analysis the occurrence of Ca, Mg, Al and Si in Roman coins even at a depth of 500/im can be proved. On the other hand, the electronegative metals (e.g. Zn) diffused from the interior of coins towards the surface : whereas the interior of certain coins œntains 3-4 per cent Zn, it cannot be detected on the surface, not even as trace element. Óvári F. — Gegus E.: The role of minor elements in the characterisation of third century Roman coins = Hungarian Journal of Industrial Chemistry, Veszprém 35—44, p. 8.(1980) Thirty-four Roman silvei coins dating from the 3rd century were analysed by lasermicrospectral analysis. The authors concluded that this non-destructive analytical method was suitable for the qualitative — and semi-quatitative — determination of the metal components found in the material of the coins. The silver antoninianus coins produced in the Roman mints in Antiochia during the reign of emperors GORDIAN, PHILIP and DECIUS could be distinguished from those produced in the mints of Rome, since the former coins had a characteristically higher zinc content. The coins of GORDIAN III and PHILIP (registered as RIC 206-219 and RIC 69-74) are different in style from the coins produced in Antiochia, yet most connoisseurs believe they originate from Eastern mints. Since these coins contain only traces of zinc their listing as Antiochian coins is incorrect. Óvári F.: Examination of Roman coins from the point of view of soil corrosion. "Korrózió a talajban" III. Nemzetközi szimpózium anyaga (Corrosion in the soil. The subjectmatter of the 3rd International Symposium) IMFLi kiadvány (Edition of the OMFB). Budapest 1981 pp. 199-203 A brief survey is presented of the history of the ancient Roman monetary system from 578 B.C., i.e. from the appearance of metal bars changed by weight, up to the fourth century A.D. From the point of view of corrosion mainly the examination of bronze coins is reasonable. The billon coins and the subaerati play a special part in the coinage. In the author's opinion it has still not been clarified satisfactorily how the Romans produced the relatively thick silver coating on the surface of bronze coins. Examination methods of corrosion and the results of such examinations carried out on coins of the third and fourth centuries are described. óvári F.: Pénzromlás a római birodalomban a III. század közepén (Depreciation of money in the Roman Empire in the middle of the third century) = Pénzügyi Szemle 25 (11) pp. 868-76 (1981) (In Hungarian) By means of mathematical methods it is demonstrated from the weight data of more than 9000 antoniniani compiled from the descriptions of finds and collections, how the weight