Taghanic event
Appearance
Taghanic event 386 million years ago in Middle Devonian period | |
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Chronology | |
Preceded by | Taghanic event 386 million years ago in Late Devonian period |
The Taghanic event (Taghanic unconformity, Taghanic crisis or Taghanic onlap) was an
Extinctions
The Taghanic event at the Givetian/Frasnian boundary caused many extinctions, including the disappearance of about 50% of
Thamnopora boloniensis, a tabulate coral, became extinct.[9]Sediments
palaeobiogeographic events.[6] The Taghanic event is found in the Tully Formation and Marcellus Formation in New York and Pennsylvania, including the Windom shale there. The Mahantango Formation in Pennsylvania, West Virginia, and Maryland also record the Taghanic event. The Taghanic event has been found in Tafilalt, Morocco in the eastern Anti-Atlas mountain range. The Orcadian Basin in Scotland has exposed rocks from the Taghanic event.[10]
Taghanic onlap
The period of global warming that caused the Taghanic event melted
seafloor. The flooding of what is now the southwestern United States created a shallow marine environment.[3][11][12]
Gallery
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Marcellus Formation Shale from Middle Devonian sedimentary rock, location of the Taghanic event rocks
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Windom shale, location of Taghanic event rocks
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Tully Formation at Taughannock Falls State Park, location of the Taghanic event rocks
See also
- Late Devonian extinction
- Kacak Event
- Emsian
References
- .
- ISBN 978-3-642-79636-4.
- ^ .
- .
- ^ a b "Abstract: THE TAGHANIC EVENT: A LATE MID DEVONIAN ARIDITY CRISIS (2003 Seattle Annual Meeting (November 2–5, 2003))". gsa.confex.com.
- ^ ISBN 978-0-08-102909-1.
- .
- .
- PMID 35082318.
- .
- ^ Graham, John Paul. "Devonian carbonate rocks , Plate8.jpg". ir.library.oregonstate.edu.
- ^ "Abstract: Global Taghanic and Givetian Seawater Records: An Amelioration of Faunal Realms, Climatic Conditions and High Levels of Atmospheric Carbon Dioxide ( 2008 Joint Meeting of The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section of SEPM)". gsa.confex.com.