Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 6 of 6 for “"Ti-in-quartz"”.
-
Ghost granophyre: A new texture with implications for plagiogranite differentiation and Ti-in-Quartz thermometry
Understanding the origins of the Earth and its crust is a fundamental goal of the geosciences and the construction of the oceanic crust comprises half the story of our planet’s unique bimodal crustal distribution. The oceanic crust is overwhelmingly mafic with the exception of plagiogranites, which …
-
Investigations of Trace Element Titanium in Silica Minerals
<p>Quartz is a common mineral in many igneous, metamorphic, and sedimentary rocks because it is stable over a wide range of pressure (P) and temperature (T) conditions; therefore, quartz is an excellent mineral to target for thermobarometric uses. Thermobarometry is the quantitative determination …
-
Applications of Elastic Modeling, Thermobarometry, and Thermal History Modeling to (Ultra)high-Pressure Metamorphic Rocks
<p>Subduction zones are tectonically active regions that produce seismicity and volcanism during plate convergence and ultimately recycle crustal material into the mantle. Since these regions dictate many global scale tectonic and geochemical processes (i.e. orogenesis, volatile flux into the …
-
Pressure, temperature, and stress conditions of Southern Alpine Fault (New Zealand) mylonites
<p>The Alpine Fault, New Zealand, provides a unique window into the rheologic history of a seismically-active continental plate boundary. Due to lower exhumation rates along southern portions of the fault relative to the well-studied central Alpine Fault, deformation ages vary along strike by ~15 …
-
Constraining Metamorphic and Tectonic Evolution in Convergent Terranes: How Trace Elements and Mineral Inclusions Shape Mechanical and Reconstructive Models
Conventional thermobarometry in metamorphic systems has been primarily limited to constraining peak temperature (or pressure) along a generalized P-T loop. This is largely attributed to the assumption that mineral assemblages and chemistries achieve a state closest to equilibrium with the maximum …
-
Thermochronology of ‘The Gap’, Western Australia
… cover sequences from the Palaeozoic−Mesozoic Canning Basin and the Neoproterozoic−Palaeozoic Officer and Amadeus Basins. Basement rocks are only sporadically exposed in small areas at the edges of the Western, North and South Australian Cratons; however, they preserve key information for …