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It is pointless to make a new article on an existing subject. I'll have to review to remove redundant material and/or merge. This article is destined to become (at most) a redirect page unless you can justify how it differs from Oxygen depletion and Dead zone (ecology). - Marshman 04:26, 22 Mar 2005 (UTC)
Author says interesting and important things but starts with a serious gross error. He refers to a tipping point of about 1000 ppm for historic mass extinctions. He should at least study the important introductory review Under A Green Sky, by Peter Ward, about $7 from Amazon. Most of paleozoic and mesozoic had ppm well above 1000 ppm without such a breakout and mass extinction. Ward argues hard for CO2 as a driver of breakout and expresses a gut feeling that about that would get us there again today, but his data and discussion make it clear that hitting 1000 ppm was NOT what we saw in the past. This being so, I am not sure what parts to believe and what not to believe here. The original paper by Lee Kung is more definitive in any case. 108.56.230.242 ( talk) 15:09, 14 January 2012 (UTC) pjwerbos, not representing anyone else 15:09, 14 January 2012 (UTC)
This section is needlessly wordy and very hard to follow. This encyclopedia is written for laymen, not for scientists. I would rewrite this section myself, except I couldn't understand it. For a good example of a well-written description of an Anoxic event, see the October 2006 Scientific American. I'm not suggesting that anybody copy from that article, but its terminology is much easier to understand. -- MiguelMunoz 07:48, 26 September 2006 (UTC)
Removed most of the chemical symbols/equations for increased readability/understandability. So as opposed to referring just to H2S or O2 it now refers to the substance itself. -- Chris Lewins 18:47, 5 November 2006 (UTC)
I'm a geologist and my work focuses on OAEs. This article is very poor quality as is and contains many inaccuracies, biased opinions and a somewhat difficult language as has been mentioned. I'm thinking of completely rewriting it in a more logical fashion, with simpler language and with the latest ideas as published in the geologic literature. What do you think? Can I rewrite the whole thing and delete the extant article? Jonjonnl ( talk) 14:41, 27 January 2009 (UTC)
This sentence from the article uses the word "unprecedented" in a way that makes little sense:
Since more than one ocean anoxic event has occurred, only the first one could have been "unprecedented". All the following anoxic events would have followed the precedent of the first one. Perhaps the article really means to say "unprecedented within human history". -- Teratornis ( talk) 20:13, 29 June 2009 (UTC)
The following two phrases seem to be in direct contradiction:
"Strata analysis suggests that in the era when Earth had a predominantly overheated climate,[1] with heavy daily rains and violent storms,[2] the global climate of the time resulted in far heavier erosion which in turn fed more nutrients into the world's waters."
"At even a few degrees warmer, rain forests are extremely vulnerable to fire hazards. These forests have little natural resistance to fires,[4] and some conjecture a critical tipping point. Practically overnight the increase of temperature might have been reached and triggered a huge burn-off[4] of planetary forests." — Preceding unsigned comment added by 72.37.171.132 ( talk) 17:41, 18 July 2011 (UTC)
This article needs some serious work. Parts are misleading and some downright incorrect. Currently attending a lecture course on this material. Stongtea ( talk) 09:41, 5 November 2012 (UTC)
The article mentions "mildly poisonous hydrogen sulfides". Hydrogen sulfide (H2S) is not mildly poisonous, it has a toxicity comparable to that of hydrogen cyanide (see WP article on H2S). Are other compounds referred to here and if so, which? As it stands, the sentence gives the impression that H2S is much less toxic than is the case. Please rectify this. Wdanbae ( talk) 22:05, 5 February 2013 (UTC)
I recently made the suggestion to rename Canfield ocean to Euxinia /info/en/?search=Talk:Canfield_ocean Currently Euxenia link to this page. Euxenia should have it's own page since this is the term for anoxia in presence of hydrogen sulfide genesis. Prokaryotes ( talk) 20:41, 21 September 2013 (UTC)
I am taking a graduate level class on biogeochemistry, and my group is planning to write a new page for Euxinia. I'll post a link as soon as we finish it. Hgossy ( talk) 23:26, 30 January 2017 (UTC)
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https://www.theatlantic.com/science/archive/2018/01/suffocating-oceans/550415/
Reports like this seem to indicate a possible new anoxic event. Should this article be updated to mention this? Frohike14 ( talk) 17:05, 13 January 2018 (UTC)
This article is rated C-class on Wikipedia's
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It is pointless to make a new article on an existing subject. I'll have to review to remove redundant material and/or merge. This article is destined to become (at most) a redirect page unless you can justify how it differs from Oxygen depletion and Dead zone (ecology). - Marshman 04:26, 22 Mar 2005 (UTC)
Author says interesting and important things but starts with a serious gross error. He refers to a tipping point of about 1000 ppm for historic mass extinctions. He should at least study the important introductory review Under A Green Sky, by Peter Ward, about $7 from Amazon. Most of paleozoic and mesozoic had ppm well above 1000 ppm without such a breakout and mass extinction. Ward argues hard for CO2 as a driver of breakout and expresses a gut feeling that about that would get us there again today, but his data and discussion make it clear that hitting 1000 ppm was NOT what we saw in the past. This being so, I am not sure what parts to believe and what not to believe here. The original paper by Lee Kung is more definitive in any case. 108.56.230.242 ( talk) 15:09, 14 January 2012 (UTC) pjwerbos, not representing anyone else 15:09, 14 January 2012 (UTC)
This section is needlessly wordy and very hard to follow. This encyclopedia is written for laymen, not for scientists. I would rewrite this section myself, except I couldn't understand it. For a good example of a well-written description of an Anoxic event, see the October 2006 Scientific American. I'm not suggesting that anybody copy from that article, but its terminology is much easier to understand. -- MiguelMunoz 07:48, 26 September 2006 (UTC)
Removed most of the chemical symbols/equations for increased readability/understandability. So as opposed to referring just to H2S or O2 it now refers to the substance itself. -- Chris Lewins 18:47, 5 November 2006 (UTC)
I'm a geologist and my work focuses on OAEs. This article is very poor quality as is and contains many inaccuracies, biased opinions and a somewhat difficult language as has been mentioned. I'm thinking of completely rewriting it in a more logical fashion, with simpler language and with the latest ideas as published in the geologic literature. What do you think? Can I rewrite the whole thing and delete the extant article? Jonjonnl ( talk) 14:41, 27 January 2009 (UTC)
This sentence from the article uses the word "unprecedented" in a way that makes little sense:
Since more than one ocean anoxic event has occurred, only the first one could have been "unprecedented". All the following anoxic events would have followed the precedent of the first one. Perhaps the article really means to say "unprecedented within human history". -- Teratornis ( talk) 20:13, 29 June 2009 (UTC)
The following two phrases seem to be in direct contradiction:
"Strata analysis suggests that in the era when Earth had a predominantly overheated climate,[1] with heavy daily rains and violent storms,[2] the global climate of the time resulted in far heavier erosion which in turn fed more nutrients into the world's waters."
"At even a few degrees warmer, rain forests are extremely vulnerable to fire hazards. These forests have little natural resistance to fires,[4] and some conjecture a critical tipping point. Practically overnight the increase of temperature might have been reached and triggered a huge burn-off[4] of planetary forests." — Preceding unsigned comment added by 72.37.171.132 ( talk) 17:41, 18 July 2011 (UTC)
This article needs some serious work. Parts are misleading and some downright incorrect. Currently attending a lecture course on this material. Stongtea ( talk) 09:41, 5 November 2012 (UTC)
The article mentions "mildly poisonous hydrogen sulfides". Hydrogen sulfide (H2S) is not mildly poisonous, it has a toxicity comparable to that of hydrogen cyanide (see WP article on H2S). Are other compounds referred to here and if so, which? As it stands, the sentence gives the impression that H2S is much less toxic than is the case. Please rectify this. Wdanbae ( talk) 22:05, 5 February 2013 (UTC)
I recently made the suggestion to rename Canfield ocean to Euxinia /info/en/?search=Talk:Canfield_ocean Currently Euxenia link to this page. Euxenia should have it's own page since this is the term for anoxia in presence of hydrogen sulfide genesis. Prokaryotes ( talk) 20:41, 21 September 2013 (UTC)
I am taking a graduate level class on biogeochemistry, and my group is planning to write a new page for Euxinia. I'll post a link as soon as we finish it. Hgossy ( talk) 23:26, 30 January 2017 (UTC)
Hello fellow Wikipedians,
I have just modified 2 external links on Anoxic event. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{
Sourcecheck}}
).
This message was posted before February 2018.
After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than
regular verification using the archive tool instructions below. Editors
have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
RfC before doing mass systematic removals. This message is updated dynamically through the template {{
source check}}
(last update: 5 June 2024).
Cheers.— InternetArchiveBot ( Report bug) 17:15, 12 November 2016 (UTC)
https://www.theatlantic.com/science/archive/2018/01/suffocating-oceans/550415/
Reports like this seem to indicate a possible new anoxic event. Should this article be updated to mention this? Frohike14 ( talk) 17:05, 13 January 2018 (UTC)