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The Wilson cycle theory is based upon the idea of an ongoing cycle of ocean closure, continental collision, and a formation of new ocean on the former suture zone.The Wilson Cycle can be described in six phases of tectonic plate motion: the separation of a continent (continental rift), formation of a young ocean at the seafloor, formation of ocean basins during continental drift, initiation of ...
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John Tuzo Wilson (October 24, 1908 – April 15, 1993) was a Canadian geophysicist and geologist who achieved worldwide acclaim for his contributions to the theory of plate tectonics. He added the concept of hot spots , a volcanic region hotter than the surrounding mantle (as in the Hawaii hotspot ).
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Other components have 95,000-year and 124,000-year cycles [8] (with a beat period of 400,000 years). They loosely combine into a 100,000-year cycle (variation of −0.03 to +0.02). The present eccentricity is 0.0167 [8] and decreasing. Eccentricity varies primarily due to the gravitational pull of Jupiter and Saturn.
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The Wilson cycle describes the cyclicity in plate tectonics by forming supercontinents (Rodinia, Pangaea) and its breakup in hundreds of millions of years. It is named after the canadian geologist John Tuzo Wilson (1908-1993). Date: 1 November 2010, 01:00 (UTC) Source: File:Wilson-cycle hg.png: Author: Hannes Grobe 08:34, 21 January 2007 (UTC)