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The International Conference on Dam Safety (ICDS) organised by the Department of Water Resources, River Development & Ganga Rejuvenation, Ministry of Jal Shakti has concluded at Rajasthan International Centre (RIC) in Jaipur. The closing session
Subducted slabs of oceanic lithosphere are key drivers of mantle convection, representing the cold limbs of mantle convection. Seismic tomography has long been the leading tool to study subducted slabs, where present-day high seismic velocity structures are interpreted as subducted slabs. The present-day mantle structure can then be used to explore subducted slab sinking history by linking subducted slabs to paleosubduction remnants on the surface, such as magmatic arcs. In this process, subducted slabs are assumed to sink vertically at a constant rate. Numerical models of mantle convection pr...
Northwest Pacific-Izanagi subduction histories along Eurasia are poorly constrained due to extensive subduction, which partially consumed the western Pacific plate and the entire Izanagi plate, its hypothesized conjugate margin. Here we reconstruct NW Pacific-Izanagi plate tectonics since Cretaceous times by mapping and structurally restoring (i.e. unfolding) the subducted western Pacific slabs from regional and global tomography, and re-creating the vanished Izanagi plate as its conjugate rift flank. Unfolding of the western Pacific slabs based on their cross-sectional areas, corrected for â€...
The southern Cascadia forearc undergoes a three-stage tectonic evolution, each stage involving different combinations of tectonic drivers, that produce differences in the upper-plate deformation style. These drivers include subduction, the northward migration of the Mendocino triple junction (MTJ) and associated thickening and thinning related to the Mendocino Crustal Conveyor (MCC) effect, and the NNW translation of the Sierra Nevada-Great Valley (SNGV) block. We combine geodetic data, plate reconstructions, seismic tomography and topographic observations to determine how the southern Cascadi...
Mining operators are particularly interested in highly stressed areas of rock, as these regions can be the source of dynamic failure. When the level of stress exceeds the strength of the rock structure, it can lead to different kinds of collapses and bursts of rock. A better approach than using phys