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Solid Earth sciences encompass the study of the crust, mantle and core of the Earth and other rocky planetary bodies. Earth sciences include petrology, mineralogy, seismology, core studies, mantle dynamics, tectonics, volcanology, metamorphism, sedimentology, geomagnetism, palaeomagnetism, hydrogeology, and geomorphology. Sedimentary rocks are also used to study palaeontology and palaeoclimate.
Through the detection of postcursors of shear waves diffracted at the core–mantle boundary, a zone of ultralow seismic velocities has been identified at the base of the mantle beneath the Himalayas. The presence of this zone is probably linked to a subducted slab remnant that is driving mantle flow in the region.
Understanding the ecosystem response to global environmental change requires consideration of geological processes, highlighting the interconnected nature of our Earth system.
Schreibersite is found in meteorites and thought to dwell in planetary cores. Tingting Gu explains how it may also have supported life on the early Earth.