extensional tectonics

The technique was applied to areas of extensional tectonics initially using vertical simple shear.

Basin and range topography results from crustal extension (extensional tectonics).

The extensional tectonics continued throughout the Middle Tertiary.

Areas of extensional tectonics are typically associated with:

When one or more salt layers are present during extensional tectonics, a characteristic set of structures are formed.

Detachment faulting is associated with large-scale extensional tectonics.

This type of volcanism is normally associated with areas of extensional tectonics, particularly rifts.

In the case of extensional tectonics, faulting will both reduce the strength of the overburden and thin it.

These basins were formed by extensional tectonics which were accompanied by an intermediate to acidic volcanism.

In geology, a rift is a linear zone where the Earth's crust and lithosphere are being pulled apart and is an example of extensional tectonics.

Some authors interpret this to be a result of a high heatflow due to extensional tectonics, while others interpret it to be an orogenic event.

They form near surface, in upward branching veins associated with extensional tectonics in subaerial volcanic rocks which are commonly intermediate in composition.

The extensional tectonics associated with the spreading formed a series of N-S trending extensional faults and associated basins.

At about 1200 Ma, the terrane was affected by extensional tectonics causing rifting and the deposition of the thick coarse clastic sequence of the Torridonian.

The extensional tectonics eventually produced the large-scale block faulting that produced the present Basin and Range Province throughout the southwestern United States.

The basin formed as a result of extensional tectonics related to the Alpine orogeny during the Palaeogene period and was mainly active between 60 and 40 million years ago.

The ISB is characterised by normal faulting of late Quaternary age, indicating active extensional tectonics, as recognised throughout the Basin and Range province to the south.

A rift lake is a lake formed as a result of subsidence related to movement on faults within a rift zone, an area of extensional tectonics in the continental crust.

The Aegean Sea is an area of mainly extensional tectonics caused by the subduction of the African Plate beneath Aegean Sea Plate.

The epicenter of the 1920 earthquake lay within the inner zone of the Northern Apennines, which has been affected by extensional tectonics since the Late Miocene to Pliocene epochs.

These form isolated exposures of varying chemistry, indicating a change in magma source from one with a strong influence from earlier subduction to the alkali basalts more normally associated with extensional tectonics.

The production of large quantities of magma, variously attributed to mantle plumes or to extensional tectonics, further pushed sea levels up, so that large areas of the continental crust were covered with shallow seas.

The Orcadian Basin is a sedimentary basin of Devonian age that formed mainly as a result of extensional tectonics in northeastern Scotland after the end of the Caledonian orogeny.

The central part of the Apennines has been characterised by extensional tectonics since the Pliocene epoch (i.e. about the last 5 million years), with most of the active faults being normal in type and NW-SE trending.

It is also possible that other mechanisms, such as dynamic topography related to mantle mass anomalies, and intraplate stress related to episodes of contractional and extensional tectonics, play a part by causing significant tectonic uplift and subsidence across the craton.