E. Breitenbach et al., Investigations on mineralogical and chemical composition of suspended particulate matter (SPM) in the Odra estuary, ACT HYDR HY, 27(5), 1999, pp. 298-302
In order to recognize lateral and seasonal variations in composition of sus
pended particulate matter (SPM) in the Odra Estuary, samples were taken at
four sites in the period July 1996 - July 1997 monthly if possible. The con
tents of the elements Si, Ti, Al, Fe, Mn, Mg, Ca, Na, K, P, C, S as well as
Ba, Cr, Sr, V; Zn, Cu, Zr, and of the minerals illite, chlorite, smectite,
kaolinite and others have been determined. The decreasing influence of the
river Odra towards the open sea could be realized with the help of the con
tents of the minerals quartz, smectite, and of the elements Ba, Cr, It, P,
Si and other. 60% of the seasonal and lateral variations can be explained b
y changing contents of total carbon (TC), total organic carbon (TOC), Al, F
e, Si, Ti, P, Mn, and Ba. They are mainly caused by differences in the prod
uction of organic matter, resuspension, riverine input, and redox-sensitive
processes.