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ⓘ Peristiwa anoksia lautan atau peristiwa anoksia berlaku apabila lautan Bumi sepenuhnya kesusutan oksigen di bawah paras permukaan. Istilah serupa euksinia meruj ..



Peristiwa anoksia
                                     

ⓘ Peristiwa anoksia

Peristiwa anoksia lautan atau peristiwa anoksia berlaku apabila lautan Bumi sepenuhnya kesusutan oksigen di bawah paras permukaan. Istilah serupa euksinia merujuk keadaan anoksia dalam kehadiran H 2 S hidrogen sulfida. Sungguhpun peristiwa anoksia tidak berlaku selama berjuta-juta tahun, catatan geologi menunjukkan bahawa ini sudah berlaku berkali-kali dahulu. Peristiwa anoksia mungkin telah menyebabkan kepupusan besar-besaran. Kepupusan besar-besaran ini termasuk sesetengah yang digunakan oleh ahli geobiologi sebagai penanda masa dalam pentarikhan biostratigrafi. Peristiwa anoksia lautan dipercayai berhubung kait dengan kuat dengan lelap dalam peredaran arus lautan kekunci, dengan pemanasan iklim dan gas rumah hijau.

                                     

1. Lihat juga

  • Kesan jangka panjang pemanasan global
  • Lautan Canfield
  • Hipoksia alam sekitar
  • Penutupan perederan termohalin
  • Perairan anoksik
  • Meromiksis
  • Penyahoksigenan lautan
  • Zon mati ekologi
  • Hidrogen sulfida
                                     

2. Bacaan lanjut

  • Hallam, A. 2004. Catastrophes and lesser calamities: the causes of mass extinctions. Oxford: Oxford University Press. halaman 91–607. ISBN 0-19-852497-8.
  • Kump, L.R., Pavlov, A., and Arthur, M.A. 2005. "Massive release of hydrogen sulfide to the surface ocean and atmosphere during intervals of oceanic anoxia". Geology. 33 5: 397–400. Bibcode:2005Geo.33.397K. doi:10.1130/G21295.1. Selenggaraan CS1: pelbagai nama: senarai pengarang link
  • Kashiyama, Yuichiro Mei 2008. "Diazotrophic cyanobacteria as the major photoautotrophs during mid-Cretaceous oceanic anoxic events: Nitrogen and carbon isotopic evidence from sedimentary porphyrin". Organic Geochemistry. 39 5: 532–549. doi:10.1016/j.orggeochem.2007.11.010.
  • Demaison G.J. and Moore G.T., 1980,"Anoxic environments and oil source bed genesis".American Association of Petroleum Geologists AAPG Bulletin. Vol.54,No8.
                                     

3. Pautan luar

  • Hugh Jenkyns talking about the Bonarelli Level and OAEs
  • Crude – the incredible journey of oil, Australian Broadcasting Corporation
  • Cretaceous climate-ocean dynamics
  • R.D. Pancost, N. Crawford, S. Magness, A. Turner, H.C. Jenkyns, J.R. Maxwell 2004. "Further evidence for photic-zone euxinic conditions during Mesozoic oceanic anoxic events" PDF. Journal of the Geological Society. 161: 353–364. Selenggaraan CS1: pelbagai nama: senarai pengarang link
  • Hot and stinky: The oceans without oxygen
  • Charles E. Jones, Hugh C. Jenkyns February 2001. "Seawater strontium isotopes, oceanic anoxic events, and seafloor spreading" PDF. American Journal of Science.

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