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 13 of 13 for “"Residual Depth"”.
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Generation of Buried Transient Landscapes and Residual Depth Anomalies
… is evaluated using a comprehensive database of residual depth measurements. This database suggests that the Icelandic plume head has a radius of ∼1500 km and a complex planform, consistent with free-air gravity and earthquake tomographic models. These observations cannot be reconciled with …
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The Significance of Densely Sampled Observations of Mantle Dynamic Topography
… a revised and augmented dataset of 10,874 residual depth measurements from oceanic crust, which originate from 7,601 seismic experiments. The isostatic component of topography is identified and removed by correcting for sedimentary loading and crustal thickness variation. Methodological …
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Dynamic Topography of the Borborema Province, South America
… is corroborated by the presence of positive residual depth anomalies of 100s of meters which are observed along the abutting continental margin. Onshore, regional uplift is manifest by Albian marine limestones, which crop out at 700 m within the Araripe basin, and by emergent Oligo-Miocene …
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Unveiling the lithospheric and mantle dynamic controls on Antarctic topography
… corrected for isostatic effects to isolate the residual topographic signal as a proxy for dynamic support. In this way, a comprehensive suite of oceanic residual depth and continental residual elevation anomalies are calculated. This compilation includes the addition of 487 newly interpreted …
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Observations of Dynamic Topography from South American Atlantic Margin
… topography is examined through the study of residual depth anomalies on oceanic crust abutting this margin. An extensive seismic reflection and refraction database is compiled, and a revised and augmented residual bathymetric map is presented. This map defines the spatial distribution of …
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Global Analysis of Predicted and Observed Dynamic Topography
… the existing database of water-loaded basement depths is streamlined, revised and augmented. By fitting increasingly sophisticated thermal models to a combined database of these oceanic basement depths and corrected heat flow measurements, the average thermal structure of oceanic lithosphere is …
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Radial Miscible Viscous Fingering of Icelandic Mantle Plume
… this major convective upwelling include positive residual depth anomalies and long wavelength free-air gravity anomalies, both of which reach from Baffin Island to Norway and from Newfoundland to Svalbard. Signifi cant shear wave velocity anomalies, observed in full-waveform tomographic models …
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Instrumented Nanoindentation Studies Of Deformation In Shape Memory Alloys
… and a decrease in the associated hysteresis and residual depth after the initial few cycles followed by stabilization were observed. As for the case of shape memory NiTi, finite element modeling was used to validate the measurements. This work has initiated a methodology for the quantitative …
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Expressions of Mantle Dynamics in Landscapes and Sedimentary Basins
… 2 km. However, recent compilations of oceanic residual depth measurements reveal topographic anomalies on much shorter wavelengths of $\sim$ 1,000 km. Limited observational constraints exist regarding the spatial and temporal evolution of this dynamic topography on the continents. In this …
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Dynamic Topography of Madagascar and its Surroundings
… elevated by 0.5--1.5~km. In contrast, observed residual depth anomalies of the oceanic plate vary over wavelengths of $10^{3}$~km with amplitudes of $\pm 1$~km around the African margin. Positive long-wavelength free-air gravity anomalies, sub-plate seismic velocity anomalies, and geochemical …
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Global Relationships Between Intraplate Magmatism and Dynamic Topography
… km. Geoidal, shear-wave velocity, and oceanic residual depth anomalies allow present-day dynamic topography to be estimated. However, the mantle convective planform evolves through time. Direct evidence of positive dynamic topography is dicult to obtain from the stratigraphic record since …
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Dynamic and quasi-static contact and scratch analysis of micro-nanoscale thin solid films with application to magnetic storage hard disk drives
… and includes a novel method of estimating the residual depth after impact. Based on elastic unloading, an improved coefficient of restitution model was also proposed. This new impact model was applied to study a practical case of a cylindrical feature on the slider of a magnetic storage hard …
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Basalt Magmatism as a Key to Unlocking Cenozoic Dynamic Topography
… used to estimate the amplitude, wavelength and depth of mantle thermal anomalies. In this way, independent constraints for mantle dynamic support are used to complement geochemical studies. Neogene-Quaternary magmatism of the Western Mediterranean region is associated with long-wavelength …