Physical properties and observations of the mantle lithosphere-asthenosphere system
• 大类 : 地学天文 - 3区
• 小类 : 地球化学与地球物理 - 3区
Recent community initiatives, including EarthScope and GeoPRISMS, have led to a tremendous increase in knowledge of Earth structure. However, the community remains limited in its ability to draw full geochemical, geological, and geodynamic meaning from resulting models of, for example, seismic velocity or resistivity. A principal issue is that making insightful connections between such models and density, composition, temperature, melting, hydration, flow, grain size, and other key properties is, in many cases, highly non-unique and/or not well established, and require highly expert knowledge.
This special issue aims to synthesize current knowledge of the relationship between models of velocity, resistivity and other surface/near surface observables (e.g., topographic elevations, xenolith geobarometry and geothermometry, basalt geochemistry, heat flow, strain, structure, and gravity), as well as mantle and crust physical state, with the goal of providing a summary volume that includes future recommendations, and that will be accessible to researchers over a range of subdisciplines.
Focus of the issue is on the lithosphere-asthenosphere system (down to a depth of approximately 350 km) as one of the key components of the Earth’s dynamic system. This depth range is particularly well sampled by observations, and experimental constraints on physical properties at these conditions are also substantially better than for larger depths, making it most suitable for multi-disciplinary study.
A number of contributions for this volume have been solicited, but we welcome further submissions, although we suggest you contact the guest editors before submitting. Each paper will be published in the next regular issue of PEPI as soon as the review process for that paper is finished. Papers will also be bundled as a virtual special issue (VSI) on the VSI home page.