Global ETD Search
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Showing 1 to 4 of 4 for “"Scotia arc"”.
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Ecophysiology, Morphology and Phylogeography of Insects in the Scotia Arc
The Scotia Arc, comprising southern South America, South Georgia and the South Orkney Islands and the Antarctic Peninsula, is home to a range of understudied insect species which are constantly exposed to extreme environmental conditions. To help reduce the amount of uncertainty surrounding insect …
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Modelling plate kinematics in the Scotia sea
A new model of plate kinematics in the Scotia Sea region is presented in which continental crustal blocks and the signatures of seafloor spreading are defined semi-automatically using gravity and total field magnetic anomalies and some of their residuals, transformations and derivatives. This study …
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Analysis of the antifreeze glycoprotein containing genomic locus in the Antarctic notothenioid fish dissostichus mawsoni
Development of the Antarctic Circumpolar Current (ACC) circa 25 mya resulted in cooling of the high latitude waters of the Southern Ocean to a chilly -1.86 °C (near the freezing point of seawater) and extinction of most of the late Eocene temperate fish fauna. A notothenioid ancestral stock …
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Structure of the Patagonian fold-thrust belt in the Magallanes region of Chile, 53° - 55° S Lat.
… subsequent development of the Patagonian retroarc fold-thrust belt and the Neogene to present tectonic superposition of a left-lateral strike-slip plate margin defined by the Magallanes- Fagnano fault zone. In this dissertation, I present new geologic maps, cross sections and detailed macro- …