The stretching and thinning of the Earth's crust under tensional tectonic forces, accommodated by normal faulting and, where extension is sustained, by continental rifting. It thins the crust, lowers its surface, and can eventually progress to the point of continental breakup and the birth of a new ocean basin.
Facts
Timescale
Timescale (category) Process Type Crustal Extension
Filter Results1 entry
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Causes
Shaped
Source Basin and range topography (Wikipedia)
Source Makassar Strait (Wikipedia)
Sources
1. Extensional tectonics (Wikipedia)
Wikipedia infobox 'Lead section' = 'Extensional tectonics is concerned with the structures formed by, a...' on 'Extensional tectonics'View the Source 2. Extensional tectonics - Wikipedia
Introduction sectionQuote, Introduction section
Extensional tectonics is concerned with the structures formed by, and the tectonic processes associated with, the stretching of a planetary body's crust or lithosphere.
Makassar Strait (Wikipedia)
Shaped: Makassar Strait, Lead and sectionsQuote, Shaped: Makassar Strait, Lead and sections
The Makassar Strait and North Makassar Basin is the result of back-arc extension due to the subduction of a small tectonic slab to the east.
Basin and range topography (Wikipedia)
Shaped: Basin and range topography, Lead paragraphQuote, Shaped: Basin and range topography, Lead paragraph
It is a result of crustal extension due to mantle upwelling, gravitational collapse, crustal thickening, or relaxation of confining stresses.
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