Natural Science Forum / Earth Science / Geology / March 2006

A smart geologist in the room ?
De visu could someone identify this rock ?
http://www.astrosurf.org/lombry/Sciences/rock182.jpg
10 cm long, 2 kg, density 2.9, found in Alps.

N capital letter postings recently.
Perhaps Cyclone Larry hit the desired spot in Oz.

Magma feeding the volcano's magma chamber comes from the highly pressurized
outer core, which is a liquid composed of metals and reduced silicon.  The
pressure is resultant of the burden above the outer core and the force of
gravity, I believe.  Pressure acts in 360 degrees, so ...

I believe I read this correctly. I was scanning through the book Snowball
Earth and found a statement that human's contributions to global warming is
far less than volcanoes. The very same day I was talking to a friend about
something related to geology or earth resources when he ...

http://www.physorg.com/news11864.html
Scientists at The University of Texas at Austin's Jackson School of
Geosciences and the Université Louis Pasteur in Strasbourg, France, have
developed a new model to explain how continents break apart to form new

The extraordinary Carnets de Géologie
<http://paleopolis.rediris.es/cg/uk-index.html#NEW> has published a new
article:
A new "Article" (CG2006 A02) was posted 15/03/2006 GOLUBIC S., RADOICIC

Don't shoot the messenger.  I'm just posting it.  I didn't write it.
George
http://www.eurekalert.org/pub_releases/2006-03/uol-gts031306.php
A new theory to explain global warming was revealed at a meeting at the

Why global warming might offset global freezing
Snowball Episodes and Earth History
by Paul F. Hoffman and Daniel P. Schrag
August 8, 1999

University scientists suggest extraterrestrial theories are flawed and
that more down to earth factors could have accounted for past mass
extinctions
Earth history has been punctuated by several mass extinctions rapidly

BERKELEY – With its big, hockey puck-sized eyes, shortened face and
nubby horns, it was probably as cute as a button - at least to its
mother, a three-horned dinosaur called Triceratops that could weigh as
much as 10 tons and had one of the largest skulls of any land animal on

Kaimbridge wrote:

http://www.terradaily.com/reports/Carbon_Balance_Killed_The_Dinos.html
by Staff Writers
Hamilton ON (SPX) Mar 08, 2006
New research into a missing link in climatology shows that the Earth was

does anyone know of an existing fossil?

I'm wondering if anyone has ever considered that the continents may
have formed as a moon  that collided with Earth. Maybe even a water
strewn comet could have this effect.
This would be consistent with their having been one continent that is

I have to go to San Francisco and Sacramento for 2 1/2 weeks.
I should have 2 Sundays and 2 weekdays free.  Maybe more if
it keeps raining.
Anything to do or see out there?