Southeastern Finland Research Articles

The Laukunkangas nickel-copper occurrence in southeastern Finland

The Laukunkangas nickel-copper occurrence in southeastern Finland

Incidence of urolithiasis leading to hospitalization in Finland.

The study population consists of 2304 urolithiasis patients discharged from all hospitals in 21 central hospital districts in 1970. The incidence rate was 50 per 100 000 inhabitants per year, 74 for men and 27 for women. The age distribution resembles the Gaussian curve, with a peak between 45 and 49 years for men and between 50 and 54 years for women. The male/female ratio was 2.7 in the entire material, about 1 in the age group 0--24 years, about 3 in the age group 25--74 years and about 1.5 in patients 75 years or older. The standardized incidence was highest in Southeastern Finland and in the archipelago of Aland, and lowest in the coastal area of Southwestern Finland. In the area with high incidence, the age distribution of urolithiasis patients differed from that in the rest of the country: in the age groups over 40 the incidence of urolithiasis did not appear to decrease. This difference was attributed to some lifelong environmental exposure. The standardized incidence of urolithiasis leading to hospitalization was higher among urban than rural residents. Seasonal variation in the hospital admissions for urolithiasis was not evident, temporal patterns of admissions were, however, dissimilar in urban and rural areas, and might reflect differences in the physical activities of urban and rural populations.

Remanent magnetization of two intrusive bodies in southeastern Finland

Remanent magnetization of two intrusive bodies in southeastern Finland

Baddeleyite – ZrO<sub>2</sub> – from Lovasjärvi diabase, south-eastern Finland

Baddeleyite – ZrO<sub>2</sub> – from Lovasjärvi diabase, south-eastern Finland

Deformational structures in the First Salpausselkä end moraine, Joutsenonkangas, south-eastern Finland

Deformational structures in the First Salpausselkä end moraine, Joutsenonkangas, south-eastern Finland

Ice wedges in south-eastern Finland

Abstract Ice wedge casts, the biggest 1.5 m deep, were found in stratified sand and gravel in sections in the Salpausselkä I end-moraine in eastern Finland. Their distribution suggests that they were formed in the end of the Late Weichselian Younger Dryas period and possibly in early Flandrian time, which agrees with the dating of the youngest ice wedge casts in southern Sweden and Scotland formed in the Younger Dryas period.

On the soil and its constructional properties at the Saimaa canal construction in Finland

This paper has, in short, dealt with the present construction work of the Saimaa canal in southeastern Finland, the soil at the building site and the earth structures in connection with this work. The structures, the canal excavations and rock cuts have been inspected, and when discovering the reasons for the landslides occurring in connection with these cuts, the anisotropy of the clay in question has become apparent. In addition to the earth excavations, the slope protection has also been examined in brief and observations on the use of varved glacial clay in earth dams have been submitted.