This dissertation is the result of my own work and includes nothing which is the outcome of work done in collaboration. No part of it has been submitted for any other qualification, and it does not exceed the word limits set by the Degree Committee for Earth Sciences and Geography. Signed [Hugo Reinert] Acknowledgements Teachers and friends, lovers and informants, helpers, critics, guides – to list them all would be impossible. This dissertation hangs in a shimmering web of gratitudes, and debts beyond repayment. Still, at least to the following, I would offer my thanks – and the acknowledgement that without them, it is difficult to imagine how it might ever have been written in the first place. To the Sámi Research Programme of the Researc...