Global ETD Search
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Showing 1 to 7 of 7 for “"Metamorphic core complexes"”.
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Kinematics and timing of normal faulting in a metamorphic core complex: Grouse Creek Mountains, Utah
… the 25.3 Ma Red Butte stocks are exposed in a metamorphic core complex in northwest Utah, in the central Grouse Creek Mountains. 40Ar/39Ar thermochronology and kinematic studies indicate two periods of motion along the MMSZ in Eocene and Late Oligocene to Early Miocene time and motion along the …
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Structural constraints on the exhumation of the Tso Morari Dome, NW Himalaya
… India is a large (>3,000 km²) structural dome cored by coesite-bearing rocks of Indian continental crustal affinity. As one of only two localities in the Himalaya where ultrahigh-pressure rocks have been found, the culmination offers important insights into the orogenic processes responsible …
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Geodynamic Evolution of the Aegean Back-arc and its Implication for Associated Precious and Base Metal Mineralization
The exposed metamorphic core complexes in the Cyclades continental back-arc of southeast Greece host a range of base and precious metal deposits. Shallow crustal mineral deposits that formed since the late Miocene to active seafloor hydrothermal systems occur in the footwall and hanging wall of the …
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Geochemical and Geochronological Constraints on the Origin and Evolution of Rocks in the Active Woodlark Rift of Papua New Guinea
… establishment of a tectonic link between sialic metamorphic rocks in the Woodlark Rift and the remnants of a Late Cretaceous aged bi-modal volcanic province along Australia's northern Queensland coast. This link is important because it identifies another rifted fragment of the former Australian …
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STRUCTURAL EVOLUTION OF THE RIO GRANDE RIFT: SYNCHRONOUS EXHUMATION OF RIFT FLANKS FROM 20-10 MA, EMBRYONIC CORE COMPLEXES, AND FLUID-ENHANCED QUATERNARY EXTENSION
… to the early stages in the development of metamorphic core complexes, and thus these regions in the rift link incipient extensional environments to highly extended terranes. At shorter time scales, heterogeneous strain accumulation may be governed in part by fluids in fault zones. As an …
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The roof of the cyclades : a structural, stratigraphic, and paleomagnetic study of Neogene extensional tectonics in Central Greece
… to Middle Miocene extensional exhumation of the metamorphic core complexes exposed in the Cycladic archipelago. In contrast with models of supra-detachment basin development related to fragmentation of the upper plate by arrays of parallel normal faults, I deduce that sedimentation in the …
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The Role of Magmatism in the Catalina Metamorphic Core Complex, Arizona: Insights from Integrated Thermochronology, Gravity and Aeromagnetic Data
<p>The footwall of the Catalina MCC located within the Basin and Range Province has been intruded by several magmatic suites. Samples were collected from the Wilderness suite sills, the most voluminous suite. U/Pb data from zircon indicate that the Wilderness suite sills were emplaced during two …