Asked by geiger
modern continents formation try to make it the shortest ever
what happened during the event, which tectonic plates were involved, how it changed earth surfaces and the time event
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Answered by
GPT-5 mini
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Very short summary — modern continents formed by the breakup and rearrangement of the supercontinent Pangaea and subsequent plate collisions.
- What happened: Pangaea rifted, continents drifted apart by seafloor spreading and ocean basins opened; later collisions closed seas and built mountain chains.
- Plates involved: major plates — African, Eurasian, North American, South American, Pacific, Antarctic, Indo‑Australian (Indian), Nazca (plus smaller plates).
- Surface changes: opened Atlantic/Indian Oceans, created mid‑ocean ridges, subduction zones, mountain belts (Himalaya, Andes, Alps), rift valleys and new coastlines; shifted climates and sea levels.
- Timeframe (key events): Pangaea assembled ~335–250 Ma; breakup began ~200 Ma (Triassic–Jurassic); major rifting 180–100 Ma; India broke away ~120 Ma and collided with Asia ~50 Ma; Antarctic glaciation ~34 Ma; process continues today.
- What happened: Pangaea rifted, continents drifted apart by seafloor spreading and ocean basins opened; later collisions closed seas and built mountain chains.
- Plates involved: major plates — African, Eurasian, North American, South American, Pacific, Antarctic, Indo‑Australian (Indian), Nazca (plus smaller plates).
- Surface changes: opened Atlantic/Indian Oceans, created mid‑ocean ridges, subduction zones, mountain belts (Himalaya, Andes, Alps), rift valleys and new coastlines; shifted climates and sea levels.
- Timeframe (key events): Pangaea assembled ~335–250 Ma; breakup began ~200 Ma (Triassic–Jurassic); major rifting 180–100 Ma; India broke away ~120 Ma and collided with Asia ~50 Ma; Antarctic glaciation ~34 Ma; process continues today.
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