Re: Suspicious impact craters and iridium layers?

[Aidan Karley <aidan_karley@yahoo.co.uk>]

In article <20050618.122842.-1030499.1.bigelowp@juno.com>, Phil Bigelow 
wrote:
> Some sed. petrologist should look carefully at the provenance of the
> mineral constituents of the Bug Creek sandstone and search for components
> not commonly seen in the underlying (K) sandstones.  Maybe new source
> areas were eroding immediately after the impact.
>
       If you've got a relevant set of samples, then Andy Morton of the 
BGS/ Aberdeen University (see 
http://www.abdn.ac.uk/geology/staffpages/hurst/hurst.php, the 
Mineral-Chemical Stratigraphy section ; search Google for `"Andy Morton" 
provenance' for more) may well be your man. Does this sort of thing on 
wells as they're being drilled.
       I don't know anything of the petroleum geology of this area of the 
mid-West (?), but I would be surprised if this sort of work hadn't been 
done already to try to identify potential reservoir horizons, sediment 
transport routes, and this decade's star turn of 'stratigraphic sequences'. 
Worth working your contacts in the local petroleum industry.
       
-- 
 Aidan Karley,
 Aberdeen, Scotland,
 Location: 57°10' N,  02°09'  W (sub-tropical Aberdeen), 0.021233
 Written at Sun, 19 Jun 2005 09:30 +0100



        
        
                
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