Origin geogenic

Mineral phases of geogenic origin, found in most of the investigated sediments, are barite (BaS04), strontianite (SrC03), rutile (Ti02), ilmenite (FeTi03),... 

Factor 2 results from the discharge of chromium by the leather industry and corresponds to the element pattern in the water. Factor 3, of geogenic origin, is caused by inflows from some small tributaries (Sormitz, Loquitz, Schwarza). 

Soil is a very complex mixture of components of geogenic or anthropogenic origin. The geogenic heavy metal content is determined by the material from which the soil is formed, the process of soil formation, and subsequent transport processes. Heavy metals are also contributed by human activities. 

Table 4.11 Origin and types of atmospheric aerosol particles (farther classification possible concerning biogenic, geogenic and anthropogenic origin).

The publicly presented data provide clear information about DU ammunition used in the Balkan area during the war when more than 15 tons of DU was expended. Whenever the total uranium content exceeded the local background from geogenic origin (0.08-14 mg kg ), the inaease was due to DU contamination and proven by U/ U or 234 /238 ratios (significantly lower than the natural ones) using... 

Metal distribution among fractions 1-7 depended obviously on the metal itself, i.e. on its chemical properties, and on its origin in the soil (geogenic or anthropogenic, i.e. from metallurgical dust, see Tables 6.4, 6.5, and 6.6). Among the el-... 

It is generally accepted that heavy metals both of geogenic (i.e., natural) origin, like the so-called reference elements, and those introduced anthropogenically are preferentially found (by 85%-95%) in the fine-grain fraction (<20 pm fraction) of aquatic sediments and suspended solids. Similar conditions are assumed for pesticides with low water solubilities [92]. For this reason sampling of contaminants in the suspended particulates can sometimes be much more effective than sampling in the water phase. In a... 

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