[{"n": "Tectonite", "u": "/e/structural-geology-and-tectonics/tectonite/", "s": "Rocks whose fabric records deformation history through mineral orientation."}, {"n": "Telluric iron", "u": "/e/structural-geology-and-tectonics/telluric-iron/", "s": "Rare terrestrial metallic iron found in Greenland."}, {"n": "Terra Australis Orogen", "u": "/e/structural-geology-and-tectonics/terra-australis-orogen/", "s": "A vast Paleozoic accretionary orogen along southern Gondwana."}, {"n": "Tethys Ocean", "u": "/e/structural-geology-and-tectonics/tethys-ocean/", "s": "Prehistoric ocean that fragmented into the Indian Ocean and Mediterranean."}, {"n": "Accretionary wedge", "u": "/e/structural-geology-and-tectonics/accretionary-wedge/", "s": "Accretionary wedges form from sediments scraped off subducting plates."}, {"n": "African plate", "u": "/e/structural-geology-and-tectonics/african-plate/", "s": "Major tectonic plate comprising most of Africa and adjacent oceanic crust."}, {"n": "Amur plate", "u": "/e/structural-geology-and-tectonics/amur-plate/", "s": "Minor tectonic plate in northern and eastern hemispheres."}, {"n": "Antarctic plate", "u": "/e/structural-geology-and-tectonics/antarctic-plate/", "s": "Fifth-largest tectonic plate, moving Antarctica southward."}, {"n": "Anticline", "u": "/e/structural-geology-and-tectonics/anticline/", "s": "Arch-like fold with oldest rocks at core, key for oil traps."}, {"n": "Arabian plate", "u": "/e/structural-geology-and-tectonics/arabian-plate/", "s": "Minor tectonic plate colliding with Eurasia, forming major mountain ranges."}, {"n": "Asthenosphere", "u": "/e/structural-geology-and-tectonics/asthenosphere/", "s": "Ductile upper mantle layer enabling plate tectonics."}, {"n": "Back-arc basin", "u": "/e/structural-geology-and-tectonics/back-arc-basin/", "s": "Submarine basins formed by extension behind volcanic arcs."}, {"n": "Basement (geology)", "u": "/e/structural-geology-and-tectonics/basement-geology/", "s": "Crystalline foundation of continents beneath sedimentary cover."}, {"n": "Boudinage", "u": "/e/structural-geology-and-tectonics/boudinage/", "s": "Geological term for sausage-shaped structures from extension."}, {"n": "Brittle–ductile transition zone", "u": "/e/structural-geology-and-tectonics/brittle-ductile-transition-zone/", "s": "Zone where brittle crust meets ductile crust."}, {"n": "Caribbean plate", "u": "/e/structural-geology-and-tectonics/caribbean-plate/", "s": "A mostly oceanic plate underlying Central America and the Caribbean Sea."}, {"n": "Cleavage (geology)", "u": "/e/structural-geology-and-tectonics/cleavage-geology/", "s": "Planar rock feature from deformation and metamorphism."}, {"n": "Cocos plate", "u": "/e/structural-geology-and-tectonics/cocos-plate/", "s": "Young oceanic plate subducting under Central America."}, {"n": "Contact (geology)", "u": "/e/structural-geology-and-tectonics/contact-geology/", "s": "A boundary separating rock bodies in geology."}, {"n": "Continent", "u": "/e/structural-geology-and-tectonics/continent/", "s": "Large terrestrial region identified by convention, not strict criteria."}, {"n": "Continental crust", "u": "/e/structural-geology-and-tectonics/continental-crust/", "s": "Continental crust forms the landmasses and shallow seabeds of Earth."}, {"n": "Continental drift", "u": "/e/structural-geology-and-tectonics/continental-drift/", "s": "Theory of moving continents, rejected then validated."}, {"n": "Continental fragment", "u": "/e/structural-geology-and-tectonics/continental-fragment/", "s": "Pieces of continents broken off into distant islands."}, {"n": "Continental margin", "u": "/e/structural-geology-and-tectonics/continental-margin/", "s": "Outer edge of continental crust under coastal waters."}, {"n": "Continental rise", "u": "/e/structural-geology-and-tectonics/continental-rise/", "s": "Sediment zone between continental slope and abyssal plain."}, {"n": "Convergent boundary", "u": "/e/structural-geology-and-tectonics/convergent-boundary/", "s": "A zone where lithospheric plates collide and subduct."}, {"n": "Core–mantle boundary", "u": "/e/structural-geology-and-tectonics/core-mantle-boundary/", "s": "Boundary between Earth's mantle and liquid outer core."}, {"n": "Craton", "u": "/e/structural-geology-and-tectonics/craton/", "s": "Old, stable continental crust forming Earth's ancient cores."}, {"n": "Cratonic sequence", "u": "/e/structural-geology-and-tectonics/cratonic-sequence/", "s": "Large-scale rock sequences recording sea-level cycles on cratons."}, {"n": "Crenulation", "u": "/e/structural-geology-and-tectonics/crenulation/", "s": "A fabric from superimposed foliations in metamorphic rocks."}, {"n": "Depression (geology)", "u": "/e/structural-geology-and-tectonics/depression-geology/", "s": "A sunken landform formed by various geological mechanisms."}, {"n": "Detachment fault", "u": "/e/structural-geology-and-tectonics/detachment-fault/", "s": "A gently dipping normal fault with large displacements in extensional tectonics."}, {"n": "Diapir", "u": "/e/structural-geology-and-tectonics/diapir/", "s": "A geological intrusion of mobile material into overlying rock."}, {"n": "Divergent boundary", "u": "/e/structural-geology-and-tectonics/divergent-boundary/", "s": "Two plates move apart, creating new crust."}, {"n": "Ductility (Earth science)", "u": "/e/structural-geology-and-tectonics/ductility-earth-science/", "s": "Rock's ability to deform without fracturing under certain conditions."}, {"n": "Eurasian plate", "u": "/e/structural-geology-and-tectonics/eurasian-plate/", "s": "Tectonic plate covering most of Eurasia and adjacent oceanic crust."}, {"n": "Ur (continent)", "u": "/e/structural-geology-and-tectonics/ur-continent/", "s": "Hypothetical Archean supercontinent, possibly Earth's first continent."}, {"n": "Vaalbara", "u": "/e/structural-geology-and-tectonics/vaalbara/", "s": "Hypothetical Archean supercontinent linking South Africa and Australia."}, {"n": "Yellowstone hotspot", "u": "/e/structural-geology-and-tectonics/yellowstone-hotspot/", "s": "Volcanic hotspot underlying the North American tectonic plate."}]