Sökning: "BALTIC SHIELD"
Visar resultat 1 - 5 av 20 avhandlingar innehållade orden BALTIC SHIELD.
1. Analyses of Seismic Wave Conversion in the Crust and Upper Mantle beneath the Baltic Shield
Sammanfattning : Teleseismic data recorded by broad-band seismic stations in the Swedish National Seismic Network (SNSN) have been used in a suite of studies of seismic wave conversion in order to assess the structure of the crust and upper mantle beneath the Baltic Shield. Signals of seismic waves converted between P and S at seismic discontinuities within the Earth carry information on the velocity contrast at the converting interface, on the depth of conversion and on P and S velocities above this depth. LÄS MER
2. Reflection seismic studies in the Baltic shield : special processing techniques and results
Sammanfattning : .... LÄS MER
3. Hydrofracturing rock stress measurements in the Baltic shield
Sammanfattning : .... LÄS MER
4. Magnetotelluric investigations of the Baltic Shield in Sweden : techniques and geophysical implications
Sammanfattning : .... LÄS MER
5. Geochemical Development of Proterozoic Granites in the SW Baltic Shield
Sammanfattning : The plutonic rocks in the Western Segment of the Southwestern Swedish Gneiss Complex show a distinct geochemical evolution. The 1.6 Ga Åmål granitoids and Slottsbron migmatites are a quartz dioritic to granodioritic, calc-alkaline rock suite with smooth, but somewhat fractionated, REE and other trace-element patterns. LÄS MER