Search for dissertations about: "exhumation"

Showing result 1 - 5 of 17 swedish dissertations containing the word exhumation.

  2. 1. The metamorphic history of Naxos (central Cyclades, Greece) : Deciphering the Oligocene and Miocene exhumation events

    Author : Alexandre Peillod; Uwe Ring; Alasdair Skelton; Arne Willner; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cycladic Blueschist Unit; exhumation; fluid flow; geothermobarometry; Hellenide orogen; Rb-Sr dating; subduction-zone metamorphism; Heat flow; Lower crust; extensional domain; Metamorphic core complex; Geology; geologi;

    Abstract : High pressure, low temperature (HP-LT) rocks observed at the surface of the Earth are evidence ofpast subduction zones. Understanding the tectonics processes that control the exhumation of HP-LT metamorphic rocks in these subduction zones requires full comprehension of the pressure-temperature-time (P–T–t) cycle that the rocks experienced. READ MORE

  4. 2. Geochronology of Tectonothermal Events in the Parautochthonous Eastern Segment of the Sveconorwegian (Grenvillian) Orogen, Southwestern Sweden

    Author : Ulf Söderlund; Berggrundsgeologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Sveconorwegian; SW Sweden; Eastern Segment; geochronology; U-Pb; zircon; titanite; polymetamorphic; high-grade; Geology; exhumation; physical geography; Geologi; fysisk geografi;

    Abstract : Timing of deformation and metamorphism yield important information for understanding the development of orogenic processes and correlation of mobile belts and continents. This thesis adds new geochronological data constraining the age of protoliths and events of reworking in the frontal region of the c. 1.2-0. READ MORE

  5. 3. Exhumation Mechanisms of high pressure rocks in the Western Alpine Sesia-Lanzo zone

    Author : Matthias Konrad-Schmolke; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  6. 4. How were high-pressure rocks exhumed in Naxos, Greece?

    Author : Alexandre Peillod; Uwe Ring; Johannes Glodny; Alasdair Skelton; Joakim Mansfeld; Jaroslaw Majka; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; extrusion wedge Naxos petrology metamorphism; Mineralogy; Petrology and Geochemistry; mineralogi; petrologi och geokemi;

    Abstract : Combining petrological and geochronological data we were able to show that rocks in south Naxos completed a full blueschist-/greenschist-facies metamorphic loop in about 10 Myr, distinctly faster than hitherto believed. We show that the high-pressure rocks reached peak pressure (16.3±0.9 kbar - 619 ±32°C) between 40. READ MORE

  7. 5. Deformation and fluid-flow in magma-poor margins : A study of the Tasna Ocean-Continent transition, SE Switzerland

    Author : Anna Engström; Alasdair Skelton; Hemin Koyi; Gianreto Manatschal; Wolfgang Bach; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Magma-poor margins; Deformation; Fluid-flow; Serpentinization; Earth sciences; Geovetenskap;

    Abstract : In this study, interaction between fluids and deformation during the final stages of magma-poor rifting was investigated. The Tasna Ocean-Continent transition, located in the Swiss Alps, was studied and a large data set was obtained from profiles oriented perpendicular to two detachment faults. READ MORE