Intraplate regions record deformation, vertical motion, and magmatism far from active plate boundaries. These responses reflect interactions among changes in plate motion, lithospheric stress transmission, inherited structures, surface loads, rheology, and mantle dynamics. Lithosphere–upper-mantle models and plate-reconstruction-informed mantle-flow models provide broad-scale kinematic and dynamic frameworks, while geological, geophysical, and geochemical records reveal how these processes are expressed at regional and local scales. Connecting these perspectives can improve our understanding of how plate–mantle–lithosphere interactions generate diverse intraplate responses.
This session brings together observational, computational, and theoretical studies of intraplate deformation, vertical motion, and magmatism and their links to plate and mantle dynamics. We welcome contributions addressing intraplate deformation and the reactivation of inherited structures; uplift and subsidence recorded by unconformities, sedimentary basins, drowned platforms, and lithospheric flexure; and the distribution, composition, timing, and age progression of intraplate magmatism, including seamount chains and continental volcanic provinces. We also invite studies exploring how changes in surface loading associated with climate, particularly glacial loading and unloading, influence intraplate stress, fault reactivation, vertical motion, and magmatic systems.
Contributions may draw on field observations, geophysical data, petrological and geochemical analyses, geochronology, plate reconstructions, and numerical models, individually or in combination. Studies of both oceanic and continental plates are encouraged. We particularly welcome studies that compare observations with model predictions, integrate evidence across spatial and temporal scales, or quantify model sensitivity and uncertainty. Our aim is to foster collaboration across disciplines and develop more integrated and better-constrained interpretations of intraplate processes.