supercontinent wikipedia - EAS
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See all on Wikipediahttps://en.wikipedia.org › wiki › SupercontinentIn geology, a supercontinent is the assembly of most or all of Earth's continental blocks or cratons to form a single large landmass. However, some earth scientists use a different definition, "a grouping of formerly dispersed continents", which leaves room for interpretation and is easier to apply to
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See moreThere are two contrasting models for supercontinent evolution through geological time. The first model theorizes that at least two separate supercontinents existed comprising Vaalbara (from ~3636 to 2803 Ma
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The causes of supercontinent assembly and dispersal are thought to be driven by convection processes in Earth's mantle. Approximately 660 km into the mantle, a discontinuity occurs,
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See moreContinents affect the climate of the planet drastically, with supercontinents having a larger, more prevalent influence. Continents modify global wind patterns, control ocean current paths, and have a higher albedo than the oceans. Winds are redirected by mountains,
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See morePlate tectonics and the chemical composition of the atmosphere (specifically greenhouse gases) are the two most prevailing factors present within the
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See moreA supercontinent cycle is the break-up of one supercontinent and the development of another, which takes place on a global scale. Supercontinent
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See moreGlobal paleogeography and plate interactions as far back as Pangaea are relatively well understood today. However, the evidence becomes more sparse further back in geologic
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See moreGranites and detrital zircons have notably similar and episodic appearances in the rock record. Their fluctuations correlate with Precambrian supercontinent cycles. The U–Pb zircon dates from orogenic granites are among the most reliable aging determinants. Some
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See moreWikipedia text under CC-BY-SA license- https://simple.wikipedia.org › wiki › Supercontinent
Supercontinent. A supercontinent also called an enormous continent, is a large area of land which has more than one continental core, or craton. They are formed by continental plates …
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- https://en.wikipedia.org › wiki › Supercontinent_cycle
The supercontinent cycle is the quasi-periodic aggregation and dispersal of Earth's continental crust. There are varying opinions as to whether the amount of continental crust is increasing, decreasing, or staying about the same, but it is agreed that the Earth's crust is constantly being reconfigured. One complete supercontinent cycle is said to take 300 to 500 million years. Continental collisi…
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- https://ro.wikipedia.org › wiki › Supercontinent
Supercontinentul este o bucată mare de pământ , determinat de scoarța terestră care poate fi bazat pe două continente ce se lovesc unul de celălalt, formând un continent mai mare …
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- https://en.wikipedia.org › wiki › Columbia_(supercontinent)
- Columbia, also known as Nuna or Hudsonland, was one of Earth's ancient supercontinents. It was first proposed by John J.W. Rogers and M. Santosh in 2002 and is thought to have existed approximately 2,500 to 1,500 million years ago, in the Paleoproterozoic Era. The assembly of the supercontinent was likely completed during global-scale collisional e...
- https://en.wikipedia.org › wiki › Aurica_(supercontinent)
Aurica (supercontinent) Aurica is a possible future supercontinent configuration. It is one of the four proposed supercontinents that are speculated to form within 200 million years, the others …
- https://en.wikipedia.org › wiki › Pangaea
Pangaea or Pangea (/ p æ n ˈ dʒ iː. ə /) was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from the earlier continental units of Gondwana, Euramerica and Siberia during the …
- https://en.wikipedia.org › wiki › Nena_(supercontinent)
Orientation of different continents in Columbia Supercontinent. Nena, an acronym for Northern Europe – North America, was the Early Proterozoic amalgamation of Baltica and Laurentia into …
- https://en.wikipedia.org › wiki › Rodinia
Rodinia (from the Russian родина, rodina, meaning "motherland, birthplace") was a Neoproterozoic supercontinent that assembled 1.1–0.9 billion years ago and broke up 750–633 million years ago. Valentine & Moores 1970 were probably …
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