 |
|
|
|
Next: Cruise Material
|
| Author |
Message |
External
Since: Jul 10, 2007
Posts: 2
|
(Msg. 1) Posted: Tue Jul 10, 2007 11:23 am
Post subject: Geological composition of rocks on the beach at Nice, France?
Archived from groups: rec>travel>europe (more info?)
|
|
|
This is a bizarre question for r.t.e., but since it looks like the
sci.geology group has been moribund for years, I figure it's worth a
try here.
When we were staying at Nice in March, I brought back as a souvenir
one of those rocks (roughly egg-sized) that compose the beach at Nice
(the area where the Prom Anglais is). I'm curious about what its
provenance is, geologically speaking. All the rocks there seem to be
the same structure, but I'll describe mine:
It's dark grey/black, oval, smooth. It has a look very much like
modeler's clay, except obviously it's a rock. This rock has a streak
running through it, about 1/2 inch wide, a "stripe" if you will, that
looks for all the world like it was once either sand, or a much
lighter clay.
I'm just idly curious, so thanks for any info. |
|
| Back to top |
|
 | |
External
Since: Jul 10, 2007
Posts: 2
|
(Msg. 2) Posted: Tue Jul 10, 2007 12:39 pm
Post subject: Re: Geological composition of rocks on the beach at Nice, France? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
On 10 Jul, 19:23, Steve G <jeng_ste....DeleteThis@hotmail.com> wrote:
> This is a bizarre question for r.t.e., but since it looks like the
> sci.geology group has been moribund for years, I figure it's worth a
> try here.
>
> When we were staying at Nice in March, I brought back as a souvenir
> one of those rocks (roughly egg-sized) that compose the beach at Nice
> (the area where the Prom Anglais is). I'm curious about what its
> provenance is, geologically speaking. All the rocks there seem to be
> the same structure, but I'll describe mine:
>
> It's dark grey/black, oval, smooth. It has a look very much like
> modeler's clay, except obviously it's a rock. This rock has a streak
> running through it, about 1/2 inch wide, a "stripe" if you will, that
> looks for all the world like it was once either sand, or a much
> lighter clay.
>
> I'm just idly curious, so thanks for any info.
Try this
http://www.sil.si.edu/smithsoniancontributions/MarineSciences/text/SCMS-0004.txt
and search for Nice |
|
| Back to top |
|
| |
External
Since: Jul 11, 2007
Posts: 2
|
(Msg. 3) Posted: Wed Jul 11, 2007 1:10 am
Post subject: Re: Geological composition of rocks on the beach at Nice, France? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
|
|
| Back to top |
|
| |
External
Since: Jan 22, 2007
Posts: 32
|
(Msg. 4) Posted: Wed Jul 11, 2007 1:32 am
Post subject: Re: Geological composition of rocks on the beach at Nice, France? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
"Steve G" <jeng_steveg.DeleteThis@hotmail.com> wrote in message
news:1184091830.559215.320380@d55g2000hsg.googlegroups.com...
> This is a bizarre question for r.t.e., but since it looks like the
> sci.geology group has been moribund for years, I figure it's worth a
> try here.
>
> When we were staying at Nice in March, I brought back as a souvenir
> one of those rocks (roughly egg-sized) that compose the beach at Nice
> (the area where the Prom Anglais is). I'm curious about what its
> provenance is, geologically speaking. All the rocks there seem to be
> the same structure, but I'll describe mine:
>
> It's dark grey/black, oval, smooth. It has a look very much like
> modeler's clay, except obviously it's a rock. This rock has a streak
> running through it, about 1/2 inch wide, a "stripe" if you will, that
> looks for all the world like it was once either sand, or a much
> lighter clay.
>
> I'm just idly curious, so thanks for any info.
>
Another question: If every tourist took home one rock from the beach at
Nice, how soon would the beach disappear?
Gerrit - Oz >> Stay informed about: Geological composition of rocks on the beach at Nice, Fran.. |
|
| Back to top |
|
| |
External
Since: Jun 07, 2007
Posts: 21
|
(Msg. 5) Posted: Wed Jul 11, 2007 2:28 am
Post subject: Re: Geological composition of rocks on the beach at Nice, France? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
|
|
| Back to top |
|
| |
External
Since: Jul 11, 2007
Posts: 29
|
(Msg. 6) Posted: Wed Jul 11, 2007 4:46 am
Post subject: Re: Geological composition of rocks on the beach at Nice, France? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
On 10 juil, 20:23, Steve G <jeng_ste... RemoveThis @hotmail.com> wrote:
> This is a bizarre question for r.t.e., but since it looks like the
> sci.geology group has been moribund for years, I figure it's worth a
> try here.
>
> When we were staying at Nice in March, I brought back as a souvenir
> one of those rocks (roughly egg-sized) that compose the beach at Nice
> (the area where the Prom Anglais is). I'm curious about what its
> provenance is, geologically speaking. All the rocks there seem to be
> the same structure, but I'll describe mine:
>
> It's dark grey/black, oval, smooth. It has a look very much like
> modeler's clay, except obviously it's a rock. This rock has a streak
> running through it, about 1/2 inch wide, a "stripe" if you will, that
> looks for all the world like it was once either sand, or a much
> lighter clay.
>
> I'm just idly curious, so thanks for any info.
The french geologicap maps of the BRGM give only the age of the layers
not their nature : For Nice, the plain of the Var river (most of the
city) is holocene (alluvions ?), the hill of Nice (overlooking the old
city eastward) is jurassic superior and the shore and... beach is
pliocene according to :
http://www.brgm.fr/cartegeol/carte50.jsp , then choose « Nice » for
commune then select Nice again (map n°973 Menton Nice, dept 06)
http://images.google.fr/imgres?imgurl=http://perso.orange.fr/hermetica...gende_b
gives the key of the map colours.
The BRGM geological maps are available on WorldWind too :
http://www.brgm.fr/cartegeol.jsp (see below page). >> Stay informed about: Geological composition of rocks on the beach at Nice, Fran.. |
|
| Back to top |
|
| |
External
Since: Jul 10, 2007
Posts: 2
|
(Msg. 7) Posted: Wed Jul 11, 2007 5:26 am
Post subject: Re: Geological composition of rocks on the beach at Nice, France? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
On Jul 11, 7:46 am, didier Meurgues <erdnisl....DeleteThis@voila.fr> wrote:
> On 10 juil, 20:23, Steve G <jeng_ste....DeleteThis@hotmail.com> wrote:
>
>
>
> > This is a bizarre question for r.t.e., but since it looks like the
> > sci.geology group has been moribund for years, I figure it's worth a
> > try here.
>
> > When we were staying at Nice in March, I brought back as a souvenir
> > one of those rocks (roughly egg-sized) that compose the beach at Nice
> > (the area where the Prom Anglais is). I'm curious about what its
> > provenance is, geologically speaking. All the rocks there seem to be
> > the same structure, but I'll describe mine:
>
> > It's dark grey/black, oval, smooth. It has a look very much like
> > modeler's clay, except obviously it's a rock. This rock has a streak
> > running through it, about 1/2 inch wide, a "stripe" if you will, that
> > looks for all the world like it was once either sand, or a much
> > lighter clay.
>
> > I'm just idly curious, so thanks for any info.
>
> The french geologicap maps of the BRGM give only the age of the layers
> not their nature : For Nice, the plain of the Var river (most of the
> city) is holocene (alluvions ?), the hill of Nice (overlooking the old
> city eastward) is jurassic superior and the shore and... beach is
> pliocene according to :
>
> http://www.brgm.fr/cartegeol/carte50.jsp, then choose « Nice » for
> commune then select Nice again (map n°973 Menton Nice, dept 06)http://images.google.fr/imgres?imgurl=http://perso.orange.fr/hermetic...
> gives the key of the map colours.
>
> The BRGM geological maps are available on WorldWind too :http://www.brgm.fr/cartegeol.jsp(see below page).
Many thanks to all. It looks like what I've got in my hand is exactly
what it appears to be: grey/black clay, with an extruded layer (a
couple, now that I look at it, most of them very very thin) of what
was once sand. Neat! Thanks to all. >> Stay informed about: Geological composition of rocks on the beach at Nice, Fran.. |
|
| Back to top |
|
| |
External
Since: Sep 22, 2004
Posts: 565
|
(Msg. 8) Posted: Wed Jul 11, 2007 8:38 am
Post subject: Re: Geological composition of rocks on the beach at Nice, France? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
"Steve G" <jeng_steveg RemoveThis @hotmail.com> wrote in message
news:1184091830.559215.320380@d55g2000hsg.googlegroups.com...
> This is a bizarre question for r.t.e., but since it looks like the
> sci.geology group has been moribund for years, I figure it's worth a
> try here.
>
> When we were staying at Nice in March, I brought back as a souvenir
> one of those rocks (roughly egg-sized) that compose the beach at Nice
> (the area where the Prom Anglais is). I'm curious about what its
> provenance is, geologically speaking. All the rocks there seem to be
> the same structure, but I'll describe mine:
>
> It's dark grey/black, oval, smooth. It has a look very much like
> modeler's clay, except obviously it's a rock. This rock has a streak
> running through it, about 1/2 inch wide, a "stripe" if you will, that
> looks for all the world like it was once either sand, or a much
> lighter clay.
>
> I'm just idly curious, so thanks for any info.
>
Sorry - I don't know Nice's geology as such.
But the 'egg' shape is almost certainly due to simple water erosion.
The stripe may well be a layer of different 'sandwiched' material formed
during the laying of sedimentary rock - a sandstone within a heavier clay,
for instance.
It *could* be igneous granite with an intrusion - but that 'line' would
probably then be more irregular and sparkling or quartz-like.
Its original source, even in the low tidal Med, could well be far away from
Nice.
Surreyman >> Stay informed about: Geological composition of rocks on the beach at Nice, Fran.. |
|
| Back to top |
|
| |
External
Since: May 17, 2004
Posts: 435
|
(Msg. 9) Posted: Sun Jul 15, 2007 9:17 am
Post subject: Re: Geological composition of rocks on the beach at Nice, France? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
|
|
| Back to top |
|
| |
External
Since: Jul 09, 2007
Posts: 47
|
(Msg. 10) Posted: Sun Jul 15, 2007 1:27 pm
Post subject: Re: Geological composition of rocks on the beach at Nice, France? [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
|
|
|
|
|
| Back to top |
|
| |
External
Since: Jan 15, 2007
Posts: 3624
|
(Msg. 11) Posted: Sun Jul 15, 2007 1:27 pm
Post subject: Re: Geological composition of rocks on the beach at Nice, France? [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
|
|
|
|
|
| Back to top |
|
| |
External
Since: Jul 09, 2007
Posts: 47
|
(Msg. 12) Posted: Sun Jul 15, 2007 1:28 pm
Post subject: Re: Geological composition of rocks on the beach at Nice, France? [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
|
|
|
|
|
| Back to top |
|
| |
External
Since: Dec 31, 2006
Posts: 139
|
(Msg. 13) Posted: Sun Jul 15, 2007 2:28 pm
Post subject: Re: Geological composition of rocks on the beach at Nice, France? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
|
|
| Back to top |
|
| |
External
Since: Jul 09, 2007
Posts: 47
|
(Msg. 14) Posted: Sun Jul 15, 2007 2:28 pm
Post subject: Re: Geological composition of rocks on the beach at Nice, France? [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
|
|
|
|
|
| Back to top |
|
| |
External
Since: Dec 31, 2006
Posts: 139
|
(Msg. 15) Posted: Sun Jul 15, 2007 3:28 pm
Post subject: Re: Geological composition of rocks on the beach at Nice, France? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
|
|
| Back to top |
|
| |
|
You can post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
|
|
|
|
|
FAQ
Profile
Private Messages
Log in
