"Joe Knapp" wrote in message
.com...

" George" wrote
I think it is safe to say that the analysis it made is
representative of the area as a whole.

FWIW, here is a great montage Doug Ellison made of part of the outcrop,
with
the blueberries resplendent & some idea of the variation.

http://mer.rlproject.com/index.php?a...pe=post&id=111
(warning:
big file)

Joe


Thank you for that link. That is quite a good montage. I must say that it
is quite annoying that JPL doesn't post these images in final form on their
web site. I guess my problem all along has been to rely on the spottiness
of their color image posts. And the fact that never having had to do the
colorizing myself also makes matters worse. It was only recently that I
even figured out how to do this, so thanks to whoever posted that
information. Having said that, I find the color of the outcrop to be very
intriquing, as it looks just like some rhyolites I've seen in the field in
the Western U.S. That doesn't mean that I think the rock IS rhyolite,
hoever, as I've never heard of rhyolites with concentration of sulfure that
this rock has. What software are they using to generate the color images?
I have several that could possibly be used (Corel PhotoPaint, Adobe
Photoshop, Corel Painter 8, Picture Window Pro, and Astrovideo,which is
great for processing black and white CCD astro photos into color using color
filters). Unfortunately, the art of colorizing is fairly new to me. By the
way, don't be stingy about posting links to great pics such as this one.
Since JPL isn't posting many color-processed images directly into their web
site, People like me are scarmbling to find them.

another annoyance is that they don't post higher resolution images. The
Mars Express site is posting images at 300 and 400 dpi, while we have to
rely on 72 and 96 dpi images. Screw the file size: I have adsl! I want
HIGH resolution! The larger, the better.

Again, thanks.

As an aside commentary, I find the purplish "reaction"? discoloration on the
rocks where there are "berries embedded in them very interesting, indeed.
Any comments on them?