Global ETD Search
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Showing 1 to 6 of 6 for “"Reykjanes Ridge"”.
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The origin of the assymetry in the Iceland hotspot along the Mid-Atlantic ridge from continental breakup to present-day
… interacted asymmetrically with the Mid-Atlantic ridge since continental breakup, influencing the Reykjanes Ridge over a greater distance to the south than the Aegir and Kolbeinsey Ridges to the north. We investigate causes of this asymmetry with 3D numerical models that simulate a mantle plume …
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Mantle upwelling, melt generation, and magma transport beneath mid-ocean ridges
… narrow column extending up to 70 km beneath the ridge axis. Consistent with geochemical constraints, the extraction of melt from the mantle therefore appears to be efficiently focus melt toward the ridge axis. A combination of laboratory and numerical studies are used to constrain the pattern of …
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Constraining circulation changes through the last deglaciation with deep-sea coral radiocarbon and sedimentary 231Pa/230Th
… from the Drake Passage and thirteen from the Reykjanes Ridge off Iceland and dated them with uranium series isotopes. The uranium series dates give independent ages that allow radiocarbon to be used as a tracer of circulation and carbon cycle changes. The radiocarbon records generated from the …
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Constraining circulation changes through the last deglaciation with deep-sea coral radiocarbon and sedimentary ²³¹Pa/²³⁰Th
… from the Drake Passage and thirteen from the Reykjanes Ridge off Iceland and dated them with uranium series isotopes. The uranium series dates give independent ages that allow radiocarbon to be used as a tracer of circulation and carbon cycle changes. The radiocarbon records generated from the …
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Basalt Magmatism as a Key to Unlocking Cenozoic Dynamic Topography
… and geochemical study of diachronous V-shaped ridges and troughs that flank the Reykjanes Ridge south of Iceland is carried out. Thirdly, the Paleogene Igneous Province that fringes the North Atlantic Ocean is placed in an Icelandic Plume context. The principal objective of this dissertation is …
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Physical controls on spring bloom dynamics in the Irminger Basin, North Atlantic
… and cover the East Greenland shelf, the Reykjanes Ridge and the Central Basin.<br/>An ANOVA analysis reveals that significant interannual variability is occurring in chlorophyll-a. An objective method for determining the start day of the spring bloom is described. Interannual variability …