[{"n": "Irina Artemieva", "u": "/e/structure-of-the-earth/irina-artemieva/", "s": "Geophysicist studying lithosphere structure and evolution."}, {"n": "Beijing Anomaly", "u": "/e/structure-of-the-earth/beijing-anomaly/", "s": "Seismic attenuation anomaly in the mantle beneath Northeastern China."}, {"n": "British Institutions Reflection Profiling Syndicate", "u": "/e/structure-of-the-earth/british-institutions-reflection-profiling-syndicate/", "s": "Deep seismic reflection profiling around the UK continental shelf."}, {"n": "Clarke number", "u": "/e/structure-of-the-earth/clarke-number/", "s": "Relative abundance of a chemical element in Earth's crust."}, {"n": "Conrad discontinuity", "u": "/e/structure-of-the-earth/conrad-discontinuity/", "s": "Seismic boundary in continental crust between upper and lower layers."}, {"n": "Continent-ocean boundary", "u": "/e/structure-of-the-earth/continent-ocean-boundary/", "s": "Boundary between continental and oceanic crust on passive margins."}, {"n": "Core–mantle differentiation", "u": "/e/structure-of-the-earth/core-mantle-differentiation/", "s": "Separation of iron and silicates formed Earth's core and mantle."}, {"n": "Dynamo theory", "u": "/e/structure-of-the-earth/dynamo-theory/", "s": "Rotating conductive fluid sustains magnetic fields over astronomical times."}, {"n": "Earth's critical zone", "u": "/e/structure-of-the-earth/earth-s-critical-zone/", "s": "The near-surface zone where rock, soil, water, air, and life interact."}, {"n": "Expanding Earth", "u": "/e/structure-of-the-earth/expanding-earth/", "s": "A discredited hypothesis that Earth's volume increases over time."}, {"n": "Geothermal gradient", "u": "/e/structure-of-the-earth/geothermal-gradient/", "s": "Temperature increase with depth in Earth's interior."}, {"n": "Inner core super-rotation", "u": "/e/structure-of-the-earth/inner-core-super-rotation/", "s": "Hypothesized faster eastward rotation of Earth's inner core relative to mantle."}, {"n": "Innermost inner core", "u": "/e/structure-of-the-earth/innermost-inner-core/", "s": "A proposed distinct anisotropic sphere within Earth's inner core."}, {"n": "International Continental Scientific Drilling Program", "u": "/e/structure-of-the-earth/international-continental-scientific-drilling-program/", "s": "International program funding continental scientific drilling for Earth science research."}, {"n": "Intraplate volcanism", "u": "/e/structure-of-the-earth/intraplate-volcanism/", "s": "Volcanism away from tectonic plate boundaries, with multiple proposed mechanisms."}, {"n": "Iron–nickel alloy", "u": "/e/structure-of-the-earth/iron-nickel-alloy/", "s": "Primary alloy of planetary cores and iron meteorites."}, {"n": "K-U ratio", "u": "/e/structure-of-the-earth/k-u-ratio/", "s": "A ratio comparing volatile potassium to refractory uranium."}, {"n": "Large low-shear-velocity provinces", "u": "/e/structure-of-the-earth/large-low-shear-velocity-provinces/", "s": "Mantle structures with slow shear waves at the core–mantle boundary."}, {"n": "Low-velocity zone", "u": "/e/structure-of-the-earth/low-velocity-zone/", "s": "A mantle layer with reduced seismic velocity and partial melt."}, {"n": "Lower mantle", "u": "/e/structure-of-the-earth/lower-mantle/", "s": "The lower mantle spans 660–2890 km depth and comprises 56% of Earth's volume."}, {"n": "Lower oceanic crust", "u": "/e/structure-of-the-earth/lower-oceanic-crust/", "s": "Volumetrically dominant, mafic zone linking mantle to MORB."}, {"n": "Mesoplates", "u": "/e/structure-of-the-earth/mesoplates/", "s": "A rigid layer in the mantle or crust, defined in two distinct contexts."}, {"n": "Mohorovičić discontinuity", "u": "/e/structure-of-the-earth/mohorovi-i-discontinuity/", "s": "Boundary between Earth's crust and mantle."}, {"n": "Plate theory (volcanism)", "u": "/e/structure-of-the-earth/plate-theory-volcanism/", "s": "A unifying model attributing all volcanism to plate tectonics."}, {"n": "Schiehallion experiment", "u": "/e/structure-of-the-earth/schiehallion-experiment/", "s": "18th-century plumb-line experiment to weigh the Earth."}, {"n": "Seismic tomography", "u": "/e/structure-of-the-earth/seismic-tomography/", "s": "Imaging Earth's interior using seismic wave variations."}, {"n": "Sial", "u": "/e/structure-of-the-earth/sial/", "s": "Upper crustal layer rich in aluminium silicate minerals."}, {"n": "Transition zone (Earth)", "u": "/e/structure-of-the-earth/transition-zone-earth/", "s": "Earth's mantle zone between upper and lower mantle."}, {"n": "Travel to the Earth's center", "u": "/e/structure-of-the-earth/travel-to-the-earth-s-center/", "s": "A theme in fiction and a limit of human drilling."}]