Natural Science Forum / Earth Science / Geology / December 2004

I am currently working on a project where I am needing to know the (rough) borders of all 7 continents (actually, all except
Antarctica would do as well).
I've found several different sources of data, but they are all so incredibly detailed that I'm having trouble working through

Axial rotation is conditioned by two known greater rotations,the
heliocentric rotation of the planet about the Sun and the motion of the
entire solar system about the galactic axis.
I'm sure the Newtonian/relativistic guys, with their superb 'angular

Thought I'd start something more lighhearted.
Camels often sit down carefully perhaps their joints creak, though quietly.
Others?
Andy

I am working on a theory involving the sources of seismic noise.
In my research, I have come across a paper by Jon Peterson,
"Observations and Modeling of Seismic Background Noise",
USGS Open File Report 93-322 (Preliminary)

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If it were to be shown that transform faults are normal faults, that
would just about wrap it up, would it not?
Simple test.
All agree?

a question: is heat conduction greater in molten rock and lava than in
solid rock ?
My question relates to how a dike of lava or magma would (or would not)
cool off :

Man oh man, is this one extry fine relief map.  But after studying it for 10
consecutive hours non-stop (except for Tom's Redskin Peanut breaks) it
looks to me like the Appalachians stretch all the way up to the north coast
of Greenland!

Does anyone know if something happened on Mt. Baker, Tuesday Dec 15th?  I
was looking at the webcorders for that mountain and the past day is filled
with what looks like a continuous earthquake - something like what preceeded
the Mt. St. Helens activity earlier this year.

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Applied Environmental Statistics
March 21-25, 2005
LOCATION

I heard it contains thorium and it's radioactive.Will I die of cancer now?

As an avid hiker living in the Seattle area, I've covered quite a bit of the
Cascades.  I'm curious as to how the range itself formed.  The volcanoes are
obvious, but what about the surrounding peaks?  From how I see it as a
hiker, you have a series of small broken mountains (5 to 6 ...

Can someone please explain how to differentiate metavolcanic rocks from
dark igneous ones?  As a non-geologist working in the Sierra Nevadas
and foothills of CA, this information would be very helpful to me.
Thanks in advance.

once, I spilled some water on my cook top as a pan was heating. This
triggered a sequence of small explosions as water trapped beneath the
pan was getting heated and evaporated.
Is it possible that some fluid, water mainly, be trapped in a porous

We own the N1 museum and shop in Lebanon, and we also own the fossil's
quarry in Hakel, and it's one of
the most important lagerstaten in the world, so we have a huge
collection of fossils (all sea fossils). All the