Natural Science Forum / Earth Science / Geology / September 2004

Does anybody know what adakites are?
I just read the term and have simply no idea, what kind of rocks that
could be. Most probably they are known under a different term in german?
Gunnar

I am calculating the equilibrium concentrations/activities of a system
containing phosphorus, ammonium, magnesium and carbonate with the
program phreeqc.
Here is an example:

There is a sandstone cliff I know of.  On this cliff there are of
course, layers. There are overhangs where the lower layers have
weathered away and you can see fossil wave patterns and dunes. In one
place where 2 layers meet there is a softball sized rock that has

I'm trying to research the history of the continents and life
thereon for a moderately, well, trivial purpose.  So I'm trying
to pick up some geology, but without spending months on it.
Alan Goodwin's <Precambrian Geology> appears to be a wonderful

http://www.eurekalert.org/pub_releases/2004-09/uoa-mgm082704.php
About 25 miles beneath the Earth's surface is a discrete boundary between the
planet's rocky crust and the mantle below that geologists call the Moho. But in
the southern end of California's San Joaquin Valley, the ...

In article <WoydnZ33A-YSQKjcRVn-qA@adelphia.com>, Jim Lillie wrote:

I am not one to jump the gun on this issue, but this may be the best evidence
found to date.  Having said that, I will wait for the peer reviewed article
before passing judgement.  Click on the link to see the photomicrographs.  The
text of the article is below.