Elastic thickness data for Tasmantid Seamounts determined from gravity modelling. Published paper, Richards, Fred & Kalnins, Lara & Watts, A. & Cohen, Benjamin & Beaman, Robin. (2018). The Morphology of the Tasmantid Seamounts: Interactions Between Tectonic Inheritance and Magmatic Evolution. Geochemistry, Geophysics, Geosystems. 10.1029/2018GC007821.

Broadband data collected at the equatorial Mid-Atlantic Ridge from March 2016 to March 2017. From the Grant abstract: We will systematically image the entire length of an oceanic plate, from its birth at the Mid Atlantic Ridge to its oldest formation on the African margin. This is a large-scale focused effort with multiple scales of resolution and sensitivity, from a metre to kilometre scale using seismic and electromagnetic methods. This scale, focus, and interdisciplinary approach will finally determine the processes and properties that make a plate strong and define it. The project will be accomplished through a large, focused international collaboration that involves EU partners (3.5 M euro) and industry (6.4M euro), both already funded.

PROJECT DETAILS ONLY - NO DATA. Numerical models (sleep, 1996,1997) of mantle plumes that consider variations in lithospheric thicknesss suggest that deep cratonic roots influence the flow of hot, bouyant plume material. This process may explain the longlevity of cold, thick cratonic roots and the generation of kimberlites in crtons. We will use these methods to: a) predict the temporal and spatial distribution of adiabatic decompression melting and b) track the diamond/graphite stability field beneath and along the margins of the supeior craton, the world's largest, and the small tanzania craton, working in collaboration with n. Sleep. Initial lithospheric rhickness will be constrained by new and existing seismic, as well as zenolith, gravity, and heat flow data. These results will improve models for mineral exploration, as well as plume processes.