[Tagging] geology taggin?

[Charlie Ferrero]

On 12/11/2010 12:28, M∡rtin Koppenhoefer wrote:
> 2010/11/11 Xan<dxpublica at telefonica.net>:
>> hi,
>>
>> Is there any tag for tagging geology of the ground: for example that it's
>> formed by clay, or by volcanic rocks...?
>
>
> There are some tags in natural and personally I am in favour of a
> landcover tag (which in case of vegetation probably still wouldn't be
> what you are looking for) (some are advocating to use surface for
> this). For geologic structure below surface there will probably be no
> consensus whether to put it, as it is not easily verificable "on the
> ground", so this might better be kept in a db aside.
>
> cheers,
> Martin
>
Geological structure immediately below the surface is verifiable if it's 
exposed at outcrop - it's what geologists spend half their life doing!