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Continental Drift v/s Plate Theory

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Bharathi Pradeep
Bharathi Pradeephttps://www.getcooltricks.com/
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Comparison: Continental Drift – See Floor Spreading – Plate Tectonics

Continental DriftSee Floor SpreadingPlate Tectonics
Explained byPut forward by Alfred Wegener in 1920sArthur Holmes explained Convectional Current Theory in the 1930s.Based on convection current theory, Harry Hess explained See Floor Spreading in the 1940sIn 1967, McKenzie and Parker suggested the theory of plate tectonics. Morgan later outlined the theory in 1968
AimClimate ChangeClimate ChangeAll Geological Activities
TheoryExplains the Movement of Continents onlyExplains the Movement of Oceanic Plates onlyExplains the Movement of Lithospheric plates that include both continents and oceans.
StyleOne Cycle TheoryTwo Cycle Theory
Forces for movementBuoyancy, gravity, pole-fleeing force, tidal currents, tides,Convection currents in the mantle drag crustal platesConvection currents in the mantle drag crustal plates
EvidenceApparent affinity of physical features, botanical evidence, fossil evidence, Tillite deposits, placer deposits, rocks of same age across different continents etc.Ocean bottom relief, Paleomagnetic rocks, distribution of earthquakes and volcanoes etc.Ocean bottom relief, Paleomagnetic rocks, distribution of earthquakes and volcanoes, gravitational anomalies at trenches, etc.
DrawbacksToo general with silly and sometimes illogical evidence.Doesn’t explain the movement of continental plates ———————
AcceptanceDiscardedNot completeMost widely accepted
UsefulnessHelped in the evolution of convection current theory and seafloor spreading theoryHelped in the evolution of plate tectonics theoryHelped us understand various geographical features.

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Bharathi Pradeep
Bharathi Pradeephttps://www.getcooltricks.com/
Editor at GetCoolTricks.com. Bharathi covers topics on Competitive exams, How To guides, Current exams, Current Affairs, Study Materials, etc. Follow her on social media using the links below.
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