328 km**2 of Polish part of the Vistula Lagoon (Southern Baltic)

Mineralogical composition; Sediment grain size parameters

In-situ particle sizers

During June and July 1994, samples of bottom sediments were taken at 100 sampling stations in a regular grid 2x2 km. The 20 cm length cores of muddy deposits were sliced into 2 cm samples and the samples of sands were taken from the top 0-5 cm layer. All samples were placed into airtight plastic boxes, frozen and stored at -20° C. Granulometric analyses were done for 100 surficial samples and 110 chemical investigations comprised the determination of total organic carbon, Al, As, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, Hg, Li, Mg, Mn, N, Ni, P, Pb, S, Sr, Ti, V, Zn, for the fraction <0.2 mm separated using nylon sieves. Results of the investigations are presented in an atlas containing: documentary map, bathymetric map, map of bottom sediments in Shepard's (1954) classification, 24 monoelement maps with vertical distributions of elements in selected cores (on inserts) and maps of As/Al, Cd/Al, Cr/Al, Cu/Al, Hg/Al, Ni/Al, Pb/Al, Zn/Al ratio, as well as explanatory text in Polish and English. Results of the analyses are stored in a Fox-Pro database. Maps were digitized (PC ARC/INFO) and prepared for printing using Corel Draw software.

Polish Geological Institute, National Research Institute, Branch of Marine Geology
Koscierska 5
Gdansk
Pomorskie
80-328
Poland