A Békés Megyei Múzeumok Közleményei 23. (Békéscsaba, 2002)

Domokos Tamás: Data about the Quaternary Mollusc Fauna, paleo-environmental conditions of the environs of Elek

Domokos Tamás SÜMEGI-MAGYARI-DÁNIEL-HERTELENDI-RUDNER1999. Sümegi P - Magyari E. - Dániel P. - Hertelendi E. - Rudner E.: A kardoskúti Fehértó negyedidőszaki fejlődéstörténetének rekonstrukciója. Földtani Közlöny 129 (1999) 479-519. SZÍJJ-VÁGVÖLGYI1948. Szíjj, J. - Vágvölgyi, J.: Contributions to the Molluscan fauna of the Börzsöny Mts. Fragm. Fauna. Hun. 11 (1948) 33-36. SZIKES 1974. Szikes P-né: Elek természeti, földrajzi viszonyai. In.: Elek története (Szerk.: Csipes A.) Elek, 1974.13. VARGA 1979. Varga, A.: A Vertigo substriata (JEFFREYS, 1833) Magyarországon. — Das Vorkommen von Vertigo substriata (JEFFREYS, 1833) in Ungarn. SOOSIANA 7 (1979) 43^15. WAGNER 1977. Wagner, M.: Observations on the „ubiquitous" Gastropods of the Pleistocene. Földrajzi Közlemények 25/1-3 (1977) 212-221. Data about the Quaternary Mollusc Fauna, palaeo-environmental conditions of the environs of Elek - Tamás Domokos Résumé On the basis of the malakofauna of the old brick-factory's subsurface (~ 1 m) deposits, the Archaean environment of Elek could be reconstructed as follows. The subsurface deposits have been formed by pluvial levelling and by matarial redeposition of the subsurface deposits approximately 5.500 years ago. The mean value of macro temperature in July could have been 17—18 °C according to the „vole-thermometer method" (Kordos 1977) and 16—17 °C according to the „malaco- thermometer method". The climate was so moist that it could provide the survival the Vertigo substriata. The higher parts of the area with a few meter surface difference were covered by forest and bush spots, grass; and the lower parts were covered by thick forests. Later the forests became drastically thinner, and some xerotherm species (Chondrula tridens, Granaria frumentum) got more important role. Kertész has found forest-steppe plant species proving the former existence of 2.000 tatarico-maple loess oak-forest (Aceri tataricoQuercetum pubescenti-roburis ). Domokos Tamás Munkácsy Mihály Múzeum H—5600 Békéscsaba, Széchenyi u. 9. E-mail: domokos@bmmi.hu 16