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.
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Showing 1 to 5 of 5 for “"Hydrothermalism"”.
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Seismic and magnetic constraints on the structure of upper oceanic crust at fast and slow spreading ridges
… a narrow zone of volcanic emplacement. Vigorous hydrothermalism at the EPR may produce a more rapid increase in basement velocities relative to the MAR. Rapid modification of the extrusive/dike transition at both ridges indicates that hydrothermalism is enhanced in this interval. Along-axis …
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Seismic and magnetic constraints on the strucutre of upper oceanic crust and fast and slow spreading ridges
… a narrow zone of volcanic emplacement. Vigorous hydrothermalism at the EPR may produce a more rapid increase in basement velocities relative to the MAR. Rapid modification of the extrusive/dike transition at both ridges indicates that hydrothermalism is enhanced in this interval. Along-axis …
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Investigation of Shocked Basalts from Vargeão Dome and Vista Alegre: Implications for the Search for Life on Mars
… and differentiate between pre- and post-impact hydrothermalism. We confidently verify that shocked samples within the Vista Alegre impact structure are altered by impact-induced hydrothermal activity. This alteration is distinct from that occurring outside the impact structure.
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Rare earth element systematics in ancient and modem hydrothermal systems
… throughout the upper ore body during waning hydrothermalism and cooling of the mound,which has resulted in the overprinting of any original hydrothermal signatures in both mound sediments and sulphides. This study has demonstrated that the geochemistry of the sulphide mound deposits continues …
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Perceive, predict, and plan: robotic expeditionary science in oceanic spatiotemporal fields
An improved understanding of our ocean would allow us to characterize the largest habitable biosphere on planet Earth, quantify the geochemical processes that control Earth’s climate, and develop responsible regulations for controlling the natural resources stored in its depths. Expeditionary …