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From: buyno@voder.UUCP
Newsgroups: sci.bio,sci.astro
Subject: Re: Mass extinctions
Message-ID: <2885@voder.UUCP>
Date: Tue, 31-Mar-87 20:16:46 EST
Article-I.D.: voder.2885
Posted: Tue Mar 31 20:16:46 1987
Date-Received: Fri, 3-Apr-87 06:24:20 EST
References: <6760@alice.uUCp> <496@uokmax.UUCP>
Organization: National Semiconductor, Santa Clara
Lines: 16
Xref: utgpu sci.bio:200 sci.astro:778
Summary: volcanoes, meteors pollution (did the Almity file an EIR?)


a	line eater munchies

	The method by which volcanoes and meteors cause extinctions are
supposed to be one or more of the following:
	a. outright poisonous gases by the ton (volcanos do put out lots
of sulfuric and nitric acids, eg.).
	b. blocking sunlight because of clouds of microparticles in the
stratosphere.
	c. at the point of the eruption/impact, heat death and or blast
death. This might be over a very considerable area if the event were large
enough.

	The exact actor is not precisely known...there remains some consi-
derable argument about it.
	Hope this helps.