Natural Science Forum / Earth Science / Geology / August 2005

http://public.fotki.com/matalog/ironish_stone/ironish_stone/
I included close-ups of the main features.
I found these 2 rocks on a beach in Ireland, there were no other rocks on
the beach that resembled these in the slightest.  The bigger one is 9 x 6 x

There is a possibility that large quanities of ice melting in artic
regions could alter the weight on the "floating" tectonic plates,
causing them to move?
Is this what causes the major continents to move periodically?

A simple question from a simple soul -- would you buy a house built on
clay? (This is in Britain where much of the soil in/around London is
clay.)
Insurance claims for subsidence have rocketed in the last few years,

'Volcano could wipe out city'
http://www.news24.com/News24/Africa/News/0,,2-11-1447_1755963,00.html
Goma - The Nyiragongo volcano that looms over Goma in eastern Democratic
Republic of Congo (DRC) could soon wipe out the city, said a leaked risk

A friend of mine found a little area In Ireland where a 20' x 20' vein of
quartz crystal lies.  He was looking at the area and found that there was a
piece of the vein where what looked to be lava had covered some of the
crystals.  There is no history of volcanic activity in the ...

During Monday's "700 Club," program, televangelist Pat Robertson commented
that the U.S. should assassinate Venezuela's president Hugo Chavez.
Since that broadcast, the U.S. State Department and the Defense Department

An image of the computer model can be viewed at the link below:
http://www.eurekalert.org/pub_releases/2005-08/yu-sbf081505.php
New Haven, Conn. - A team of American and British scientists have
identified and digitally reconstructed the first example of a fossilized

Hello;
It's andy your rockhound pal.
I enjoy learning about this very cool science, i really want to know the
answers to these questions.

http://www.abovetopsecret.com/forum/thread163644/pg1
The person here posted some (admitedly poor) digital photos of a
metal/mineral that he found in Vancouver about 5 years ago.  They had
given it to a professor at the geo dept. of the Univeristy of Alberta

http://www.vallartarestaurants.com/temp/mac.jpg
I found this in Puerto Vallarta, Mexico. The place where predator 1 was
filmed. 2 hours walk in the jungle i found this big rock with a 25cm
aprox diameter STAR SHAPED HOLE side to side from the rock (1.2mts!!

I have some questions about the orientation of stress directions from
borehole data.
I try to find a good explanation for this problem:
In the region of my study, is well know that the regional S1 direction

Hi group,
         Is this natural or not
http://community.webshots.com/myphotos?action=viewAllPhotos&albumID=414622220
3foot across, rings when hit, old red sandstone area, NW Scotland.

As a postgrad student, I'am currently working with Carrara marble, with
an average grainsize of about 150 microns. I'm looking for pure marbles
of a larger grainsize,  eg, ~400-500 microns, and/or > 1mm. Any
recommendations? I've seen marbles from Marble (CO) and Thassos

I have a dim memory that what is often described as the oxidation of
pyrite generating heat in freshly-exposed sediments etc, is actually
the oxidation of marcasite, a structural variant of pyrite. Or is my
memory fading?

I'm looking for a retail store in LA/OC or maybe even San Diego county
where I can buy a Suunto Tandem compass/clinometer
http://tinyurl.com/8hu4n
Yes, I know I can mail-order it, but if possible I want to buy one