Peristiwa kepunahan Trias–Jura: Perbedaan antara revisi
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'''Peristiwa kepunahan
== Dampak ==
Paling tidak setengah spesies yang hidup pada
Di lautan, analisis statistik kepunahan pada
== Penyebab ==
Terdapat beberapa [[hipotesis]] yang berupaya menjelaskan penyebab peristiwa ini, tetapi jawaban sesungguhnya masih belum pasti:
* Perubahan iklim secara perlahan, fluktuasi tingkat permukaan laut atau pengasaman samudra<ref>T.M. Quan, B. van de Schootbrugge, M.P. Field, "Nitrogen isotope and trace metal analyses from the Mingolsheim core (Germany): Evidence for redox variations across the Triassic-Jurassic boundary", ''Global Biogeochemical Cycles'', '''22''' 2008: "a series of events resulting in a long period of stratification, deep-water hypoxia, and denitrification in this region of the Tethys Ocean basin"; M. Hautmann, M.J. Benton, A. Toma, "Catastrophic ocean acidification at the Triassic-Jurassic boundary", ''Neues Jahrbuch für Geologie und Paläontologie'' '''249'''.1, July 2008:119-127.</ref> pada periode [[Trias]] akhir mencapai titik kritis, namun hipotesis ini tidak menjelaskan mengapa kepunahan di samudra terjadi secara mendadak.
* Tubrukan [[asteroid]], tetapi hingga kini belum ditemukan kawah yang cukup besar yang berasal dari periode batas Trias-Jura.
:[[Kawah Rochechouart]] di
|last = Schmieder | first = M. | authorlink = |author2=Buchner, E. |author3=Schwarz, W. H. |author4=Trieloff, M. |author5=Lambert, P.
|title = A Rhaetian <sup>40</sup>Ar/<sup>39</sup>Ar age for the Rochechouart impact structure (France) and implications for the latest Triassic sedimentary record
|journal = [[Meteoritics & Planetary Science]] | volume = 45| issue = 8 | pages = 1225–1242
|publisher = | location = | date = 2010-10-05 | language =
|doi = 10.1111/j.1945-5100.2010.01070.x
|bibcode = 2010M&PS...45.1225S }}</ref>
|last = Smith | first = Roff |title = Dark days of the Triassic: Lost world
|journal = [[Nature (journal)|Nature]] | volume = 479| issue = 7373 | pages = 287–289
|publisher = | location =
|date = 2011-11-16 | language =
|url = http://www.nature.com/news/dark-days-of-the-triassic-lost-world-1.9375
|doi = 10.1038/479287a
|accessdate = 2011-11-18|bibcode = 2011Natur.479..287S | pmid=22094671}}</ref>
*
== Catatan kaki ==
Baris 33:
* {{cite journal|first=J. C.|last= McElwain|author2=D. J. Beerling |authorlink2 = David Beerling|author3=F. I. Woodward |title=Fossil Plants and Global Warming at the Triassic-Jurassic Boundary|journal=Science|date= 27 August 1999|volume=285|pages=1386–1390|pmid=10464094|issue=5432 | doi=10.1126/science.285.5432.1386 }}
* McHone, J.G. (2003), Volatile emissions of Central Atlantic Magmatic Province basalts: Mass assumptions and environmental consequences, in Hames, W.E. et al., eds., ''The Central Atlantic Magmatic Province: Insights from Fragments of Pangea''. American Geophysical Union Monograph 136, p. 241-254.
* {{cite journal|first=L.H.|last= Tanner |author2=S.G. Lucas |author3=M.G. Chapman|title=Assessing the record and causes of Late Triassic extinctions|journal=Earth-Science Reviews|issue=1–2|year=2004|pages=103–139|doi=10.1016/S0012-8252(03)00082-5|volume=65|bibcode=2004ESRv...65..103T}}[http://museums.state.nm.us/nmmnh/pdf_files/TJB.pdf] {{Webarchive|url=https://web.archive.org/web/20060306225005/http://museums.state.nm.us/nmmnh/pdf_files/TJB.pdf |date=2006-03-06 }}
* {{cite journal |last = Whiteside |first = Jessica H.
* {{cite journal|first=M.H.L.|last=Deenen |author2=M. Ruhl |author3=N.R. Bonis |author4=W. Krijgsman |author5=W. Kuerscher |author6=M. Reitsma |author7=M.J. van Bergen |title=A new chronology for the end-Triassic mass extinction |journal=EPSL |year=2010}}
* {{Cite journal |author=Tetsuji Onoue |author2=Honami Sato |author3=Daisuke Yamashita |author4=Minoru Ikehara |author5=Kazutaka Yasukawa |author6=Koichiro Fujinaga |author7=Yasuhiro Kato |author8=Atsushi Matsuoka |authorlink= |coauthors= |date =2016-07-08 |title=Bolide impact triggered the Late Triassic extinction event in equatorial Panthalassa |journal=[[Scientific Reports]] |volume= |issue= |pages= |id= |url=http://www.nature.com/articles/srep29609 |accessdate= |quote= }}
== Pranala luar ==
* [http://palaeo.gly.bris.ac.uk/Palaeofiles/Triassic/triextict.htm Theories on the Triassic-Jurassic Extinction] {{Webarchive|url=https://web.archive.org/web/20170801065542/http://palaeo.gly.bris.ac.uk/palaeofiles/triassic/triextict.htm |date=2017-08-01 }}
* [http://nai.arc.nasa.gov/impact/news_detail.cfm?ID=23&keyword=250 The Triassic-Jurassic Mass Extinction] {{Webarchive|url=https://web.archive.org/web/20090720234639/http://nai.arc.nasa.gov/impact/news_detail.cfm?ID=23&keyword=250 |date=2009-07-20 }}
* [http://www.bbc.co.uk/news/science-environment-15272230 200 million year old mystery] BBC News story, 12-Oct-2011
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[[Kategori:Peristiwa kepunahan]]
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[[Kategori:Peristiwa Trias]]
[[Kategori:Sejarah iklim]]
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