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Plate tectonics (from Latin tectonicus, from Ancient Greek τεκτονικός (tektonikós) 'pertaining to building') [1] is the scientific theory that Earth's lithosphere comprises a number of large tectonic plates, which have been slowly moving since 3–4 billion years ago.
The Vine–Matthews–Morley hypothesis, also known as the Morley–Vine–Matthews hypothesis, was the first key scientific test of the seafloor spreading theory of continental drift and plate tectonics. Its key impact was that it allowed the rates of plate motions at mid-ocean ridges to be computed.
Marie Tharp was born on July 30, 1920, in Ypsilanti, Michigan, the only child of Bertha Louise Tharp, a German and Latin teacher, and William Edgar Tharp, a soil surveyor for the United States Department of Agriculture. [6]
The motions of tectonic plates and subduction zones measured by a large range of geological, geodetic and geophysical techniques helps verify plate tectonics. [29] [4] [30] Imaging of lithosphere fragments within the mantle is evidence for lithosphere consumption by subduction. [4] [30]
Arthur Holmes FRS FRSE (14 January 1890 – 20 September 1965) was an English geologist who made two major contributions to the understanding of geology. He pioneered the use of radiometric dating of minerals, and was the first earth scientist to grasp the mechanical and thermal implications of mantle convection, which led eventually to the acceptance of plate tectonics.
Richard Doell (American, 1923–2008) – created a timeline for geomagnetic reversals and was a pioneer in plate tectonics; Vetlesen Prize James Dooge (Irish, 1922–2010) – hydrology Erich von Drygalski (German, 1865–1949) – polar explorer and geophysicist
Drummond Matthews (left) and Frederick Vine, 1981. Drummond Hoyle Matthews FRS [1] (5 February 1931 – 20 July 1997), known as "Drum", [2] was a British marine geologist and geophysicist and a key contributor to the theory of plate tectonics.
Frederick John Vine FRS (17 June 1939 – 21 June 2024) was an English marine geologist and geophysicist.He made key contributions to the theory of plate tectonics, helping to show that the seafloor spreads from mid-ocean ridges with a symmetrical pattern of magnetic reversals in the basalt rocks on either side.