Folia archeologica 45.

Tóth Endre: Dr. Soproni Sándor szakirodalmi munkássága

32 VIOLA T. DOBOSI-ISÏVÀN GATTER ies" (microthermometiy). The necessary means for this type of analysis is a microchamber which can be fit on the microscope and where the temperature range can be changed between -180 and + 600 °C, usually. By the help of this small device the phase transitions of gaseous components, water and salts can be studied. Knowing the phase diagrams of the individual materials, the inclusions can be identified on the basis of their physico-chemical attributes (ROEDDER 1963). This method can be used effectively on the minerals of more recent periods as well for genetical studies. Observations were made using a Schneider gemological microscope with 10-50x linear magnification interval, embedded in a fluid of high refraction index (benzoe acid bensil ester, n= 1,570, OBERFRANK-RÉKAI 1984), at room temperature. Complementary investigations were made for the study of the phases included by freezing the samples in a refrigerator at +2 °C, +4 °C for several hours and slow warming at room temperature. Micrographs were made using photo device on an Amplival microscope in a range of I5x-60x linear magnification. The samples studied were photographed in the above mentioned immersion liquid in glass cuvette. Description Bodrogkeresztúr-Henye (VÉRTES 1964) Topography: On the southern forehills of the Tokaj-Eperjes mountains between the Kop asz (Bald) Mountain of Tokaj and the floodplain of the Takta-köz, the plateau-like hilltops yielded several collecting spots of Palaeolithic implements. The richest material was collected on the highest point of this region, the Henye hill (current elevation a.s.l. 198 meters). Excavations (Vértes 1963, Dobosi 1982) opened here parts of a settlement disturbed by strong erosion and agricultural activity. The partly intact cultural layer was within brown soil with mycelia closed by a homogeneous yellow loess. Find circumstances: Ehe rock crystal flake was obtained during the excavation of Vértes as one of the stray finds from the settlement. It was inventorized under separate number because of its special raw material. There are no other archaeological periods found on the area of the site and no primary or secondary sources of rock crystal are known from this region. Thus the flake can be classified together with other objects found in similar conditions to the material of the Upper Palaeolithic site. Raw material: About 80% of the raw material basis of the BodrogkeresztúrHenye site is local, composed of local hydrothermal silices and obsidian. The remaining 20% comprised long distance raw materials from a range of 60-80 kms. Starting from the west to the east, they comprise felsitic porphyry from the Eastern Bükk (Tatár-trough), to the east, silicified rhyolite tuff which can be identified easily from the characteristic resorbeated quartz crystal fragments (GYARMATI 1983). Description of rock crystal items: Inventory nr. Pb 64/89. Triangular cross section, high ridge blade medial fragment. Due to the uneven material, the straight edges have an uneven retouch on a short phase. Size: 26X 19 mm. Sample 1.: clear, slightly prismatical. On the surface, fine traces of detachment. The interior objects observed are as follows: I. in the medial part, 5-10 дт large slightly elongated bodies with uncertain phase composition, occasionally in oriented appearance. II. close to the tip near the margin of the piece 5-10 дт large dark globular bodies with 95-98 vol. % gaseous phase along the plane of the crystal. In some objects, isometrical crystallites were observed (not halite). III. the former type is accompanied by inclusions of similar appearance, containing 5-10 vol. %). gaseous phase. Fluid inclusions indicate the presence of H,0CO„ and H„0 type fluids.