Daniel,
There is a classical story about serpentine rock intersected by
the drilling of a road tunnel in the Berkeley Hills and running down
the tunnel. Water may play an important role in the strength of
serpentinite however.
eric
On Feb 23, 2005, at 1:41 PM, Daniel Laó Dávila wrote:
> Thanks to Alan and William. Maybe I did not explain myself well. I am
> interested in understanding the effects of a less dense serpentinite
> underlying sedimentary and volcanic rocks, on a fold and thrust belt.
> As an example less dense serpentinite may give rise to diapirism in
> this system. There are many studies on fold and thrust belts where
> salt is underneath and forms diapirs and other shaped structures, but
> I have found little on the effects of serpentinite. Thanks again.
>
> Daniel
>
>
> On Feb 23, 2005, at 12:10 PM, Alan Roberts wrote:
>
>> Daniel
>>
>> My recollection from time long past at Liverpool, with Derek Flinn
>> and a
>> number of his research students, is that the island of Unst in the
>> Shetlands
>> (UK) is predominantly an obducted (Caledonian) ophiolite and
>> serpentinite is
>> plentiful. There are even archaeological relics made of steatite
>> found on
>> Unst.
>>
>> I suggest a google search on Flinn and Unst as a possible starting
>> point.
>>
>> Anyone at Liverpool brave enough to tackle Derek Flinn on the subject
>> might
>> be able to provide more detail.
>>
>> From an anecdotal point of view this is where DF spent his honeymoon
>> measuring deformed pebbles and mused on the strain ellipsoid, the
>> rest is
>> history ...
>>
>> Alan
>>
>> --------------------------------------
>> Dr Alan Roberts
>> Badley Geoscience Ltd
>>
>> ----- Original Message -----
>> From: "Daniel Laó Dávila" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Wednesday, February 23, 2005 4:40 PM
>> Subject: Serpentinite in fold and thrust belts
>>
>>
>> Hi all:
>>
>> I have been looking for references on fold and thrust belts where
>> serpentinite forms the basement and is involved in the deformation
>> (i.e. thick-skinned). Yet it seems that the references are difficult
>> to
>> find. Any help on this topic will be greatly appreciated.
>>
>> Sincerely,
>> Daniel
>>
>>
>> Daniel Laó Dávila
>> Department of Geology and Planetary Science
>> University of Pittsburgh
>> 200 SRCC
>> Pittsburgh, PA 15260
>>
> Daniel Laó Dávila
> Department of Geology and Planetary Science
> University of Pittsburgh
> 200 SRCC
> Pittsburgh, PA 15260
>
>
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