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Review key What Is a Supercontinent and How Did Pangaea Form? exam facts and rate your mastery to track revision.
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#1
A supercontinent is a geological landmass comprising all or most of Earth's continental lithosphere and ancient cratons merged into one.
#2
The cyclical assembly, rifting, and reassembly of supercontinents every 300 to 500 million years is known as the Wilson Cycle (Supercontinent Cycle).
#3
The cycle is driven by deep mantle convection, subduction slab pull at oceanic trenches, and thermal mantle plumes under insulating crust.
#4
Pangaea was not Earth's first supercontinent; it was preceded by Ur (3.1 Ga), Kenorland (2.7 Ga), Columbia/Nuna (1.8–1.5 Ga), and Rodinia (1.1 Ga).
#5
The name Pangaea was popularized in 1912 by German meteorologist Alfred Wegener, derived from Greek 'Pan' (all) and 'Gaia' (Earth).
#6
Pangaea began assembling during the late Carboniferous Period (~335 Ma) and achieved complete consolidation in the Permian Period (~300–250 Ma).
#7
It formed from the tectonic collision of two giant landmasses: Euramerica (Laurussia) and the southern supercontinent Gondwana.
#8
The collision caused massive mountain-building episodes (Orogenies), raising the ancestral Appalachian and European Variscan mountain ranges.
#9
Pangaea had a curved 'C' shape centered across the paleo-equator, stretching from the northern polar zone to southern polar latitudes.
#10
Pangaea was surrounded by a single colossal global superocean called Panthalassa ('All Sea'), the precursor to the modern Pacific Ocean.
#11
A large tropical marine embayment on the eastern inner curve of Pangaea formed the Paleo-Tethys and Neo-Tethys Oceans.
#12
Pangaea's massive interior suffered extreme hyper-aridity and temperature extremes because maritime rainstorms could not penetrate inland.
#13
Alfred Wegener supported Continental Drift using the matching 'jigsaw-puzzle' fit of South American and African Atlantic coastlines.
#14
Fossil evidence: identical fossils of the freshwater reptile Mesosaurus and the seed fern Glossopteris are found across separated continents.
#15
Matching rock strata, mountain fold belts, and Permo-Carboniferous glacial striations span South America, Africa, India, and Antarctica.
#16
Pangaea began rifting apart during the early Jurassic Period (~200 to 175 million years ago) due to basaltic volcanism and mantle upwelling.
#17
The initial breakup split Pangaea into two massive daughter landmasses: Laurasia in the north and Gondwana in the south, separated by Tethys.
#18
Continued tectonic spreading throughout the Cretaceous Period widened the North and South Atlantic Oceans and fragmented Gondwana.
#19
India broke away from Gondwana ~120 Ma, drifting rapidly northward across the Tethys Ocean to collide with Eurasia, uplifting the Himalayas.
#20
The fragmentation of Pangaea isolated terrestrial plant and animal populations, accelerating biological speciation and mammalian evolution.
#21
Geologists predict that plate tectonics will reassemble the next supercontinent ('Pangaea Ultima' or 'Amasia') within 250 million years.
#22
Massive flood basalt eruptions at Pangaea's margin (Siberian Traps) caused the Permian-Triassic Extinction (~252 Ma), wiping out over 90% of marine species.
Subject Specialist Commentary
Analytical perspective & practical exam advice from the Master10 academic board
A supercontinent is an immense landmass uniting nearly all of Earth’s continental crust. Through the Wilson Cycle, supercontinents assemble and break apart every 300 to 500 million years due to tectonic plate movement. Pangaea consolidated around 300 million years ago through the collision of Laurussia and Gondwana, surrounded by the global ocean Panthalassa. During the Jurassic Period, Pangaea rifted apart into northern Laurasia and southern Gondwana, gradually shaping modern continents.
For UPSC Prelims and geography options, study Alfred Wegener’s continental drift theory and the geological evidence supporting Pangaea. Questions routinely highlight fossil correlations, such as the reptile Mesosaurus and the fern Glossopteris found across separated continents. A classic exam trap assumes Pangaea was Earth’s first supercontinent; earlier cycles formed Rodinia and Columbia. Remember that India broke away from Gondwana, drifting northward across the ancient Tethys Sea to uplift the Himalayas upon colliding with Eurasia.
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