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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.
Obduction zones occurs when the continental plate is pushed under the oceanic plate, but this is unusual as the relative densities of the tectonic plates favours subduction of the oceanic plate. This causes the oceanic plate to buckle and usually results in a new mid-ocean ridge forming and turning the obduction into subduction. [citation needed]
From the late 18th century until its replacement by plate tectonics in the 1960s, geosyncline theory was used to explain much mountain-building. [4] The understanding of specific landscape features in terms of the underlying tectonic processes is called tectonic geomorphology , and the study of geologically young or ongoing processes is called ...
Scientists are torn about why a massive crack in the earth suddenly appeared outside Nairobi, Kenya.
The Indian plate (or India plate) is a minor tectonic plate straddling the equator in the Eastern Hemisphere.Originally a part of the ancient continent of Gondwana, the Indian plate broke away from the other fragments of Gondwana and began moving north, carrying Insular India with it. [2]
These plates, called tectonic plates, can push against each other. Earthquakes are most common along fault lines, which are fractures that allow the plates to move.
In tectonics, vertical displacement refers to the shifting of land in a vertical direction, resulting in uplift and subsidence. [1] The displacement of rock layers can provide information on how and why Earth's lithosphere changes throughout geologic time. [1]
Tectonic plates are made up of Earth’s crust and the rigid top layer of the mantle, known as the lithospheric mantle. The planet has around a dozen large and irregularly shaped tectonic plates ...