Failed arm of a triple junction, an inactive rift zone
For the insect, see Aulacogenia.
An aulacogen is a failed arm of a triple junction.[1] 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 An aulacogen is a rift zone that is no longer active.[2]
^Milanovsky, E.E. (1992). "Aulacogens and aulacogeosynclines: Regularities in setting and evolution". Tectonophysics. 215 (1–2): 55–68. Bibcode:1992Tectp.215...55M. doi:10.1016/0040-1951(92)90074-g.
^Robert, Christian M. (2008-01-01). "Chapter Seven Aulacogens". In Robert, Christian M. (ed.). Developments in Marine Geology. Global Sedimentology of the Ocean: An Interplay between Geodynamics and Paleoenvironment. Vol. 3. Elsevier. pp. 239–248. doi:10.1016/s1572-5480(08)00207-8. ISBN 9780444518170.
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...
The Southern Oklahoma Aulacogen (ah-lah-coh-jin) is a failed rift, or failed rift arm (aulacogen), of the triple junction that became the Iapetus Ocean...
Oklahoma. It is the principal relief system in the Southern Oklahoma Aulacogen, being the result of a failed continental rift. The mountains are a northwest-southeast...
The New Mexico Aulacogen (ah-lah-coh-jin) is a failed rift, or failed rift arm (aulacogen), that may have formed during the Cambrian and Ordovician Periods...
The Lancaster Aulacogen is a geological structure underlying Lancaster Sound and Prince Regent Inlet in the Arctic Archipelago of Nunavut, Canada. It...
valleys, are located on passive continental plate margins, or extend into aulacogens (failed arms of triple junctions where continental rifting begins.) Flood...
The Narmada River, previously also known as Narbada or anglicised as Nerbudda, is the 5th longest river in India and overall the longest west-flowing river...
Highly viscous, mechanically weak, and ductile region of Earth's mantle Aulacogen – Failed arm of a triple junction, an inactive rift zone Back-arc basin –...
Suez Rift Lamu Embayment Melut Basin Muglad Basin Red Sea Rift Sangha Aulacogen Atbara rift Urema Valley West and Central African Rift System White Nile...
System will be the aulacogen in the future, failing to produce an ocean basin, but as of present-day there seems to be no aulacogen and the EARS does not...
gneissic complex around 2.2 Ga with the coexisting formation of the Bhilwara aulacogen in its eastern part and eventual rupturing and separation of the continent...
F G H I J K L M N O P Q R S T U V W X Y Z Asthenosphere Astrogeology Aulacogen Batholith Beach Bolide Calcium Canyon Cave Cement Cementation Cenozoic...
of seafloor spreading, while the third ultimately fails, becoming an aulacogen. Most rifts consist of a series of separate segments that together form...
Many existing continental rift valleys are the result of a failed arm (aulacogen) of a triple junction, although there are two, the East African Rift and...
New Madrid, Missouri, between Memphis and St. Louis, is related to an aulacogen (failed rift) that formed at the same time as the Gulf of Mexico. This...
fails to completely split the continental lithosphere (such as in an aulacogen), and failed rifts are characterized by volcanoes that erupt unusual alkali...
geology. The Reelfoot Rift is an ancient failed continental rift, an aulacogen, which dates back to the Precambrian break-up of the supercontinent Rodinia...
open while the third arm stops opening and becomes a 'failed rift' or aulacogen. As the two active rifts continue to open, eventually the continental...
triple junction). One of these divergent plate boundaries fails (see aulacogen) and the other two continue spreading to form an ocean. The opening of...
Mount Scott Granite as the southern Oklahoma aulacogen was being formed. The formation of this aulacogen resulted from rifting that took place as the...
development of the Meers fault may have been influenced by the South Oklahoma aulacogen. Both the Wichita Mountains thrust and possibly a second fault are linked...
The Pannonian Basin, or Carpathian Basin, is a large sedimentary basin situated in southeast Central Europe. After the WW1 and Treaty of Trianon, the geomorphological...
(Depression) which along with Prypiat Through forms the Prypiat-Dniper-Donets aulacogen. Most of the Voronezh Massif is covered with thin layers of sedimentary...
Donbas Fold Belt, also known as a part of the large Pripyat-Dniepr-Donets aulacogen, which transects Sarmatia, dividing it into the Ukrainian Massif or shield...
failed to split the North American continent, but it has remained as an aulacogen (a scar or zone of weakness) deep underground. This relative weakness...
are thought by some to be associated with a branch of the New Madrid aulacogen, an old rift zone where the lithosphere actively began to pull apart at...
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