Search for dissertations about: "metamorphic"
Showing result 1 - 5 of 79 swedish dissertations containing the word metamorphic.
-
1. Optimization of Metamorphic Materials on GaAs Grown by MBE
Abstract : Advanced epitaxial technologies such as molecular beam epitaxy (MBE) and metal-organic vapor phase epitaxy (MOVPE) have enabled the idea of semiconductor heterostructures, which built up the foundation of the fast developing information and communication technology nowadays. Lattice mismatch has been a problem limiting designs of semiconductor heterostructures. READ MORE
-
2. Metamorphic zircon formation in gabbroic rocks – the tale of microtextures
Abstract : Dating of metamorphic events is crucial for the understanding and reconstruction of large-scale geological processes such as orogenesis. Zircon is one of the most commonly used minerals for dating of igneous and metamorphic events. Zircon incorporates uranium and excludes lead during crystallization, and with time the uranium decays to lead. READ MORE
-
3. Metamorphic Heterostructures and Lasers on GaAs
Abstract : The objective of this thesis is to demonstrate the metamorphic growth of heterostructure lasers on GaAs substrates. Many heterostructure devices have their performance limited by the need to grow on lattice-matched substrates. READ MORE
-
4. Fluid-induced alteration of metasedimentary rocks in the Scottish Highlands
Abstract : Fluids, mainly H2O and CO2, are released from H- and C-bearing phases during prograde metamorphism. Because of the buoyancy of these fluids, they rise within the crust towards the surface of the Earth. Metamorphic fluids take advantage of permeable horizons, shear zones, fold hinges, fractures, and are channelled into high-flux zones. READ MORE
-
5. How do metamorphic fluids move through rocks? : An investigation of timescales, infiltration mechanisms and mineralogical controls
Abstract : This thesis aims to provide a better understanding of the role of mountain building in the carbon cycle. The amount of CO2 released into the atmosphere due to metamorphic processes is largely unknown. READ MORE