Re: Why Life on Mars and the Dinosaurs Died

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#589

From: Daniel Lang
Date: Fri, 08 Nov 1996 00:00

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In article <55tqh1$56k@cronkite.seas.gwu.edu>, kmc_mst6@gwis2.circ.gwu.edu (Karen M Cramer) writes...
>MH Roberts (u5k24@cc.keele.ac.uk) wrote:
>: Neil O'Hara wrote:
>: > The object that struck earth and killed the dinosaurs was more likely a
>: > comet, but could have been a meteor,...
> 
>: I studied geology last year at college, and an I didn't realise until
>: then that most geologists refutre the claim that a projectile from outer
>: space killed off the dinosaurs.  This is mainly because Palaeontological
>: evidence suggests that the dinosaurs were extinct by and large before
>: the event occurred.. and the theory was proposed by a physicist who had
>: little knowledge of geology..
> 
>His son who co-authored the paper was a geologist I believe.
> 
>If it was not a projectile from outer space what was it?
> 
>Karen
> 
>: Cheers,
>: Mel.
>: -- 
>: Melfyn Roberts                  |  "Time's fun when you're
>: Email: u5k24@cc.keele.ac.uk     |   having flies!"
>: URL: http://www.wp.com/mroberts |  - Kermit the Frog.

The other possibility is a massive episode of volcanic activity that
formed the Deccan traps (in what is now India) ~65 million years ago.

Along the same lines, the formation of the Siberian traps may be responsible
for the extinction episode at the end of Permian (the largest of the 
extinction episodes).

Daniel Lang  dbl@hydra0.caltech.edu

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<01bbc94a$4ee7d640$6f8860ce@david-lawler> <327E3AED.68E6@cdepot.net> <3280E566.532D@cc.keele.ac.uk> <55tqh1$56k@cronkite.seas.gwu.edu> id qqbpai07415; fri, 8 nov 1996 22: 05:36 -0500 (EST)

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From: dbl@hydra1.caltech.edu (Daniel Lang)
Subject: Re: Why Life on Mars and the Dinosaurs Died
Date: 1996/11/08
Message-ID: <8NOV199619032604@hydra1.caltech.edu>
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