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Re: Mega eruption may have wiped out [Cambrian] life

To: DML <dinosaur@usc.edu>
Subject: Re: Mega eruption may have wiped out [Cambrian] life
From: David Marjanovic <david.marjanovic@gmx.at>
Date: Tue, 27 Jun 2006 14:37:09 +0200
References: <20060627125904.anwy8jw9c8ogg0gw@mail.alphalink.com.au> <44A0E980.390FF75A@alphalink.com.au>
Reply-to: david.marjanovic@gmx.at
Sender: owner-DINOSAUR@usc.edu

http://geology.geoscienceworld.org/cgi/content/abstract/34/6/461


Said to correspond to the Early-Middle Cambrian boundary... but...

Australian geologists used the chemical signatures of the far-flung
basalt lava rocks and their ages to connect them to a single huge
volcanic eruptive episode between 505 and 508 million years ago...

... http://www.stratigraphy.org/gssp.htm doesn't have a series boundary between ~ 513 and ~ 501 Ma ago.

References:
- Mega eruption may have wiped out [Cambrian] life
  - From: Dann Pigdon <dannj@alphalink.com.au>
- Re: Mega eruption may have wiped out [Cambrian] life
  - From: Dann Pigdon <dannj@alphalink.com.au>

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