缺氧事件

缺氧事件大洋缺氧事件指的是海洋中氧气缺乏的一段时期,期间海水中的硫化氢H
2
S
)含量大幅增加[1]。它在地质史上曾多次发生,同时伴随而来的是生物集群灭绝[2]。因此生物地层学上将缺氧时间当成时间划分的一个重要指针[3]。它的成因可能是气候变暖、温室气体增加及洋流速度变缓等,而释放出大量二氧化碳的火山作用是其主要外部成因[4]

红圈表示大规模灭绝地,黑点则是规模未知的灭绝地

绝大部分的缺氧事件都发生在侏罗纪白垩纪等气温上升、二氧化碳含量增加的时期,缺氧事件中平均海水表面温度超过25 °C(77 °F),而现代则不过13 °C(55 °F)。气温上升的原因可能是原本封存于地壳中的天然气大规模释放[5][6][7][8]

参见

参考文献

  1. Timothy W. Lyons, Ariel D. Anbar, Silke Severmann, Clint Scott, and Benjamin C. Gill. . Annual Review of Earth and Planetary Sciences. January 19, 2009, 37: 507–53 [April 11, 2014]. Bibcode:2009AREPS..37..507L. doi:10.1146/annurev.earth.36.031207.124233. (原始内容存档于2020-05-15).
  2. Wignall, Paul B.; Richard J. Twitchett. . Science. 5265. 24 May 1996, 272 (5265): 1155–1158 [12 September 2011]. Bibcode:1996Sci...272.1155W. PMID 8662450. doi:10.1126/science.272.5265.1155. (原始内容存档于2015-09-24).
  3. Peters, Walters; Modowan K.E. . Cambridge University Press. 2005: 749 [2017-03-29]. ISBN 978-0-521-83762-0. (原始内容存档于2020-07-26).
  4. Katja M Meyer; Lee R Kump. . Annual Review of Earth and Planetary Sciences. January 9, 2008, 36: 251–288 [2014-04-11]. Bibcode:2008AREPS..36..251M. doi:10.1146/annurev.earth.36.031207.124256. (原始内容存档于2020-02-26).
  5. . [2008-07-08]. (原始内容存档于2008-07-19).
  6. Mark Lynas. . May 1, 2007 [2008-07-08]. (原始内容存档于2009-05-02).
  7. Gronstal, A. L. . Imaginova. 2008-04-24 [2008-04-24]. (原始内容存档于29 April 2008).
  8. Pearce, C. R.; Cohen, A. S.; Coe, A. L.; Burton, K. W. . Geology (Geological Society of America). March 2008, 36 (3): 231–234 [2008-04-24]. Bibcode:2008Geo....36..231P. doi:10.1130/G24446A.1. (原始内容存档于29 April 2008).

扩展阅读

  • Kashiyama, Yuichiro; Nanako O. Ogawa; Junichiro Kuroda; Motoo Shiro; Shinya Nomoto; Ryuji Tada; Hiroshi Kitazato; Naohiko Ohkouchi. . Organic Geochemistry. May 2008, 39 (5): 532–549. doi:10.1016/j.orggeochem.2007.11.010.
  • Kump, L.R.; Pavlov, A. & Arthur, M.A. . Geology. 2005, 33 (5): 397–400. Bibcode:2005Geo....33..397K. doi:10.1130/G21295.1.
  • Hallam, A. . Oxford [Oxfordshire]: Oxford University Press. 2004: 91–607. ISBN 0-19-852497-8.
  • Demaison G.J. and Moore G.T., (1980),"Anoxic environments and oil source bed genesis". American Association of Petroleum Geologists (AAPG) Bulletin, Vol.54, 1179–1209.

外部连接

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.