engleski

Sarmatian and Pannonian climate and vegetation – evidence from north-western Croatia

Numerous diverse and well preserved palynomorpha from the Miocene marls in the vicinity of Zagreb (NW Croatia) have been extracted. Sarmatian to Pannonian age was determined on the basis of microfossils and molluscs (KOCHANSKY-DEVIDÉ & BAJRAKTAREVIĆ, 1981 ; VRSALJKO, 1999). Determined palynoflora resembles the modern vegetation in the area, with several species typical for the Mediterranean region. Palynomorpha originate from different palaeoenvironments: mixed mesophytic forest, swamp forest, riparian forest and grassland (JIMÉNEZ-MORENO, 2006 ; IVANOV et al., 2011). Prominent relief, caused by the tectonic uplift, resulted in altitudinal arrangement of vegetation belts (below 700 m, between 700–1, 100 m and above 1, 100 m). Vegetational changes visible in geological columns point to the oscillations of temperature and precipitation, particularly in the Podsused section. Three palynozones were recognized, reflecting the changes of vegetation through the Middle and Late Miocene in the research area. These results indicate that the calculated mean annual temperature in the study area (11.7°C) was very similar to the present time (11.3°C). Rainfall (1, 170 mm) was higher than today (975 mm) (FAQUETTE et al., 1998).

analiza polena; vegetacija; klima; sarmat–panon; sjeverozapadna Hrvatska

nije evidentirano