Naslov
The Reconstruction of the Paleoenvironmental History of the Northern Adriatic Region Using of the Granulometric Properties of Loess Deposits on Susak Island, Croatia

Autori
Bognar, Andrija ; Sshweitzer, Ferenc ; Kis, Eva

Izvornik
Chikei : Transactions - Japanese Geomorphological Union (0389-1755) 23 (2002), 5; 795-810

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
loess; Adriatic region; Susak Islands; granulometric analysis

Sažetak
Based on the asymmetry parameters obtained the uppermost loess with the inerbedded moddle tephra which overlies the middle paleosol complex appears to represent a reworked deposit, except for the loess layers between 0.00-0.75 and 16.52-17, 50 m depth, the paleosol between 11.35-11.70 and 14.00-14.35 m and the middle tephra between 16.50-16.52 m. Below this depth in situ sediments are found. A notable case is that of loess-like sediments (24.10-28.70 m) and marine littoral i.e. "tidal" sands (30.10-31.00 m). These have been affected by waves during high tide (12 hours) and by winds (by bora and sirocco during the winter half-year and maestral during the summer one). Based on the variations displayed FG values by the young and old loess pockets and paleosols signed out. In general over the Carpathian Basin values60.98-68.38 indicate young loesses, whilst values 65.34-73.59 refer to old loesses. Along the Susak profile loess is represented by a variety of deposits with high sand contents. Values of 55.57-59.47 are typical of young loesses. Below 20.55 m loess becomes even more sandy and FG decreases to 52.59 which is almost sand. In the lowermost part of the profile loess-like material prevails (54.73-56.03 and 53.44-56.58) contrasting with loesses of higher parameter values. Using method described above information on the granulometry of the Susak profile allows palegeoographic conclusions to be obtained directly from the database, form the summarytable containingthe parameter values for the individual layers (Table 1) and from the stratigraphic diagrams. This research was supported for the Hungarian National Scientific Research Fund (OTKA) Project No. T 22657

Izvorni jezik
Engleski

Znanstvena područja
Geografija

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