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Origin of plate tectonics
OTHER WORDS FROM plate tectonicsplate-tec·ton·ic, adjective
Words nearby plate tectonics
Example sentences from the Web for plate tectonics
If we assume that one of the main drivers of plate tectonics is subduction — where one plate sinks into the deep mantle below another plate — then we shouldn’t expect any plate to be moving faster than the rate at which its slab sinks.The New Historian of the Smash That Made the Himalayas|Robin George Andrews|April 14, 2021|Quanta Magazine
It “supports the growing consensus in the geological community that plate tectonics established itself at a global scale” sometime around 3 billion years ago, he said.
Those estimates have wildly different implications for how plate tectonics affects everything else on Earth.
Volcanism on a climate-altering scale might not last as long as it does when plate tectonics keeps things churning along, but it theoretically could persist for 1 billion or 2 billion years, Foley says.How the Earth-shaking theory of plate tectonics was born|Carolyn Gramling|January 13, 2021|Science News
Using a heatproof slotted spoon, remove the shallots to a paper towel-lined plate.
Allow beans to cool completely then remove to a paper towel-lined plate to dry.
The young man had the presence of mind to tail Gaylard Williams out of the park and jot down his license plate.Exposed: The Gay-Bashing Pastor’s Same-Sex Assault|M.L. Nestel|December 21, 2014|DAILY BEAST
Chris Stein of Blondie catches Ramone with an “aw, shucks” expression just after he drops a plate of food.‘All Good Cretins Go to Heaven’: Dee Dee Ramone’s Twisted Punk Paintings|Melissa Leon|December 15, 2014|DAILY BEAST
In another case, a whole plate of uneaten food (including nuts, hummus and raisins) was pureed and inserted rectally.‘Rectal Feeding’ Has Nothing to Do with Nutrition, Everything to Do with Torture|Russell Saunders|December 10, 2014|DAILY BEAST
Well, the pudding moment arrived, and a huge slice almost obscured from sight the plate before us.
He conducts this ceremony with the greatest solemnity, occasionally pronouncing these incantatory words, "Plate or shell, sah?"Physiology of The Opera|John H. Swaby (AKA "Scrici")
We sat down pell-mell, anywhere, I next to Liszt, who kept putting things on my plate.Music-Study in Germany|Amy Fay
He silenced her with a gesture, and, leaving a piece of toast half-eaten on his plate, he got up and went into his study.Uncanny Tales|Various
The prizes were plate, and the profits were to be expended in repairing the havens of the kingdom.The Every Day Book of History and Chronology|Joel Munsell
British Dictionary definitions for plate tectonics
Scientific definitions for plate tectonics
A Closer Look
Although German physicist, meteorologist, and explorer Alfred Wegener proposed the theory of continental drift in 1912, suggesting that the continents were once joined as one large landmass, the explanation for the movement of such large landmasses into their current positions was not developed for several more decades. According to the theory of plate tectonics, which was proposed in the 1960s, the continents (and ocean floors) ride atop about a dozen semirigid plates-huge slabs of Earth's lithosphere-that are much larger than the continents themselves. The plates' constant movement is powered by huge convection currents of molten rock in Earth's mantle, thought by many geologists to be heated by the decay of radioactive elements deep within Earth. Although the plates move only a few inches per year, over the hundreds of millions of years of geological time, the continents are carried thousands of miles. Along their margins, the independently moving plates interact in three main ways. Where plates pull apart, new crust is formed. Where they collide, one plate is submerged beneath the other, and material from the bottom one returns to Earth's mantle. If the converging plates have land masses on them, the boundaries crumple, forming mountains. Plates also slide past each other, creating the faults that produce earthquakes. The six major plates are the Eurasian, American, African, Pacific, Indian, and Antarctic., See more at note at Wegener.
Cultural definitions for plate tectonics
In geology, a theory that explains the distribution of continents, earthquakes, volcanoes,, mountains and other geologic phenomena in terms of the formation, movement, and destruction of tectonic plates. These plates move in response to forces deep within the Earth. Because continents, such as North America, often ride piggy-back on plates, their movement is referred to as continental drift.