how's it known where Cambrian strata begin?

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david ford

Posted: Tue Apr 08, 2008 7:23 am

Joined: 07 Dec 2004 Posts: 582

How is it known where pre-Cambrian strata end and Cambrian strata
begin?

Aidan Karley

Posted: Tue Apr 29, 2008 6:35 am

Guest

In article <ftg9ls$1397$1@darwin.ediacara.org>, wrote:

Quote:

How is it known where pre-Cambrian strata end and Cambrian strata
begin?

You look for the fossils in your section under consideration.

The level at which you start to see "small shelly fossils" in the rocks
marks the base of the Cambrian.

--
Aidan Karley,
Aberdeen, Scotland
Written at Wed, 16 Apr 2008 08:22 +0100, but posted later.
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