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It was the to no research like 'New floor, spreading, connectional current theory of Industrialization', 'Textile', and 'Mechanical Theory' in 1960. Morgan, Barker, McKingie's Plate Texture Theory. In the 1960's, they proposed that it was not continuous that a word, but continuous were part of layers, Felts that moved.

Plates moved due to the underlying convectional currents found by molten magma. Then are 7 major plates and a number of minor plates: (eg) Eurasian plate, Pacific plate => major plates; Nazca, Cocos, Philippine plate => Minor plates. Different types of plate boundaries: (1) Convergent plate boundary - When two plates collide with each other, the denser 'dense plate sinks below the lighter plate. (eg) when continent-ocean plates converge, ocean plate subduges below continental plate, rocks formed in the middle/ocean ridges are formed. (eg) ridge (mid-ocean ridge of the Atlantic Ocean). (b) when continent = continent plate converge, trembles & volcanoes are not formed. Instead Admitrist fold up to form non-volcanic young mountains (eg Himalaya). (7) when ocean-ocean plate converge, intense volcanic mountains are generally not formed because the plate as dense & devel cause much folding in legs don't sink much. (3) Transform Plain Plate boundary - When plates slide past each other. Focal cause the function of young fold mountain or volcanic eruption, but one area of instability, be earthquake are observed (eg) Cascivade are observed at right angles causing feature activity.