Vörös A. szerk.: Fragmenta Mineralogica Et Palaentologica 10. 1981. (Budapest, 1981)
RESULTS Table 1 presents the Indices obtained by the semiquantitative calculation of three Upper Oligocène floras from Tatabánya basin. All the indices seem to indicate similarities. In all cases the greatest similarity could be seen between the Vértesszolos (Baromálláa) and the Tatabánya floras whereas the least similarity could be discovered between the Vértesszőlős (Baromállás) and the Tarján floras. This Is demonstrated by Figure 2. Table 1 Vértesszőlős (Baromállás)-Tatabánya Tatabánya Tarján Vértesszőlős (Baromállás)-Tarján K C s C sl00 \ 0.22 0.3496 34,96 0.15 0.2352 23.52 13.8655 0.08 0.1272 12.72 Table 2 presents the values yielded by the quantitative evaluation of the three floras tested. It is to be seen that from the point of view of diversity the Vértesszolos (Baromállás) and the Tatabánya floras stand nearest to each other, while the least similarity can be discovered between Vértesszőlős and Tarján floras. Values in Table 2 are shown in Fig. 3 by the use of geometrical constructions. It is interesting to note that although the value of H' ' is the highest in the Vértesszőlős flora, the Tarján flora reaches the highest point of its own. The dotted line indicates the averages, so it can be seen what is above and below the average value. Table 2 N s logs H" J" Hdiff Hp Vértesszőlős 996 (Baromállás) Tatabánya 104 Tarján 14 Average values 371.3 101 6.6578 4.8849 42 5.3920 4.5481 9 3.1691 2.9396 50,66 5.0726 4.1242 0.7336 — I cv 4865.36 iL g 0.8434 £ ° 473,00 in © 0.9273 d J 41.15 0.8347 The overlap value calculated by means of the Horn equation refers not to species but to genera. Vértesszőlős (Baromállás) Tatabánya : R q = 0.7099 Tatabánya Tarján : R q = 0.6657 Vértesszőlős (Baromállás) Tarján : R q = 0.6602 It can be seen that the highest overlap value was attained at the comparison of the Vértesszőlős and the Tatabánya floras. This agrees with the finding that the H^iff of these is the smallest; so both methods proved that these two floras are the most similar. If we compare these with the K and C 8 values obtained by means of the semi-quantitative method we find no contradiction. The characteristic values, indices, coefficients of the floras have a member of systematic regularity. Whether this relation is real or imaginary can be decided by calculating the correlation. Of the examined characteristics the closest positive correlation is shown by H' ' and log 2 s. There is a
