Lesson plan
Aulacogen
. In A, volcanoes form along a continental plate boundary. B shows the triple junction's basic appearance following its formation. C shows that one of the three "arms" has not split while the other two do, continuing into D, in which the Iapetus Ocean forms. An aulacogen is a failed arm of a triple junction. Aulacogens are a part of plate tectonics where oceanic and continental crust is continuously being created, destroyed, and rearranged on the Earth’s surface. Rift zones are places where new crust is formed. An aulacogen is a rift zone that is no longer active.
Article summary
. In A, volcanoes form along a continental plate boundary. B shows the triple junction's basic appearance following its formation. C shows that one of the three "arms" has not split while the other two do, continuing into D, in which the Iapetus Ocean forms. An aulacogen is a failed arm of a triple junction. Aulacogens are a part of plate tectonics where oceanic and continental crust is continuously being created, destroyed, and rearranged on the Earth’s surface. Rift zones are places where new crust is formed. An aulacogen is a rift zone that is no longer active.
Key claims
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.