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.
Results
Showing 1 to 6 of 6 for “"edge-driven convection"”.
-
Seismic tomographic imaging reveals possible lithospheric erosion beneath Trans-Pecos Texas and Southeastern New Mexico.
… "drip" into the mantle, perhaps due to edge-driven convection. To investigate this anomaly, the Seismic Investigation of Edge-Driven Convection Associated with the Rio Grande Rift (SIEDCAR) project deployed a two-dimensional array of seismographs with a typical station spacing of ~35 km. …
-
Understanding Non-Plume Related Intraplate Volcanism
… triggered by lithospheric delamination, and edge driven convection (EDC), could be responsible for magmatism. This dissertation explores intraplate volcanic locations that do not fit the mantle plume model, and presents geochemical evidence for lithospheric delamination and edge driven …
-
Geochemistry, Thermochronometry, Petrogenesis, and Geometry of Igneous Dikes in Central Arkansas: Implications for Mississippi Embayment Evolution
… evolution for the AAP and ME related to edge-driven convection (EDC) associated with regional tectonics. At the time of the AAP’s emplacement (106-89 Ma), EDC was at its highest velocity (80-100 Ma after the Atlantic Ocean and GOM started rifting). At this time, the proto-ME region was …
-
Guiana Shield diamonds, the sub-cratonic lithosphere, and kimberlite emplacement in the upper crust.
… highly viscous and turbulent upper mantle of an edge-driven convection cell, as inferred for Arkansas lamproite magma genesis, diamonds may be subjected to extreme forces which distort the atomic lattice. Finally we conducted high temperature (300 – 900 °C) and cold seal experiments at 100-200 …
-
Dynamics of the North American Plate: Numerical Development, Mantle Flow Modeling, and Receiver Function Analysis
… whole plate. Recently, a new generation mantle convection code, ASPECT (Advanced Solver for Problems in Earth ConvecTion) equipped with fully adaptive mesh refinement (AMR) technology opens up the potential to build a multi-scale global mantle flow model with a local high-resolution focus …
-
A Geodynamic Investigation of Continental Rifting and Mantle Rheology: Madagascar and East African Rift case studies
… tosimulate rifting, the lack of knowledge of the underlying mantle dynamics, and poor knowl-edge of mantle rheology. Here, we use state-of-art computational modeling of the upper660 km of the Earth to: 1) provide a better understanding of mantle flow patterns and themantle rheology …