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Free keywords:
Geochemie, Edelgase, Mantel, Kruste, Fluid, Helium, Neon, Argon, noble gas, mantle, geochemistry, crust
Abstract:
In the present thesis, interactions of kimberlites and lamproites as well as their constituent minerals with fluids are discussed based on noble gas compositions. The samples originate from the eastern Baltic Shield, more specifically from the Kola craton (Poria Guba and Kandalaksha) and the Karelia craton (Kostamuksha). Gas was extracted by stepwise heating and crushing from 23 whole rock samples and 15 mineral separates. These two techniques allow differential extraction of gas from
fluid inclusions (crushing technique) and from the bulk sample (stepwise heating).
