Petteri Pitkänen

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Active microbial communities of deep crystalline bedrock fracture water were investigated from seven different boreholes in Olkiluoto (Western Finland) using bacterial and archaeal 16S rRNA, dsrB, and mcrA gene transcript targeted 454 pyrosequencing. Over a depth range of 296-798 m below ground surface the microbial communities changed according to depth,(More)
The purpose of the present investigation was to analyse interviews of highly regarded Finnish magicians. Social network analysis (N = 120) was used to identify Finland's most highly regarded magicians (N = 16). The selected participants' careers in professional magic and various aspects of their professional conduct were examined by relying on(More)
Uranium release observed in a rock matrix around water-carrying fractures was studied using U-series disequilibrium (USD) modelling and mass balance calculations. Several release scenarios were tested, with specific attention to the glacial aspects. The release appears to have occurred in two or three violent episodes during the last 300 ky. A release after(More)
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