Re: Loess, sandstone or tephra?

In article <42b881ae$0$275$edfadb0f@xxxxxxxxxxxxxxxxxxxx>, Carsten Troelsgaard
wrote:
> You have thought it possible to be a volcaniclastic rock .. I take that the
> identification of the matrix as pure quartz-grains has some margin of
> uncertainty then?
>
That's a good point. Unless you can see cleavage facets on the hand
specimens, then you'll (sorry, Mr GReenstone) need to get those thin sections
cut.

--
Aidan Karley, FGS
Aberdeen, Scotland,
Location: 57°10'11" N, 02°08'43" W (sub-tropical Aberdeen), 0.021233

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