Path: ...!news.nobody.at!2.eu.feeder.erje.net!feeder.erje.net!feeds.news.ox.ac.uk!news.ox.ac.uk!nntp-feed.chiark.greenend.org.uk!ewrotcd!news.eyrie.org!beagle.ediacara.org!.POSTED.beagle.ediacara.org!not-for-mail
From: William Hyde <wthyde1953@gmail.com>
Newsgroups: talk.origins
Subject: Re: The permian extinction 200 million years ago ice or fire?
Date: Tue, 5 Nov 2024 17:03:03 -0500
Organization: A noiseless patient Spider
Lines: 23
Sender: to%beagle.ediacara.org
Approved: moderator@beagle.ediacara.org
Message-ID: <vge4mv$1nmnp$1@dont-email.me>
References: <vgdl8m$1kiq8$1@dont-email.me>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
Injection-Info: beagle.ediacara.org; posting-host="beagle.ediacara.org:3.132.105.89";
	logging-data="39840"; mail-complaints-to="usenet@beagle.ediacara.org"
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:91.0) Gecko/20100101
 Firefox/91.0 SeaMonkey/2.53.19
To: talk-origins@moderators.isc.org
Cancel-Lock: sha1:r2o29csYKjCfX/a51v8KcDsPBTE=
In-Reply-To: <vgdl8m$1kiq8$1@dont-email.me>
Bytes: 3568

RonO wrote:
> https://www.sciencedaily.com/releases/2024/10/241028164257.htms
> 
> These researchers think that the cold periods after the massive volcanic 
> eruptions cause the mass extinction 200 million years ago.  Massive 
> amounts of carbon dioxide were expelled into the atmosphere, but they 
> think that the huge amounts of sulfates caused rapid cooling more than 
> once during these massive eruptions and that it was the cold that life 
> on earth could not survive.

Certainly sulphate aerosols act more rapidly than greenhouse gases.


Work on a site at the K/T border in Colorado shows first a shower of
small debris, then a cold period (frost damage evident in aquatic plants
gives an approximate time of year of July), followed by a slow prolonged
warming.

So Fire and Ice, not to mention wind and shock waves.

William Hyde