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JESMKS
2006-Jan-30, 05:45 PM
On January 28, Spirit accidently discovered some loose white material in a shallow trench. If this material was diatomaceous earth, would Spirit's Microscopic Imager have the resolution to identify diatom tests?
Jack

Fr. Wayne
2006-Jan-31, 02:44 AM
I wish they did. But honestly outside of some nice close-ups, they can't tell the difference between fossils and bird-poop. I'm only joking because no one else is responding. By the way, what is that white stuff in bird-poop?

http://astrogeology.usgs.gov/Projects/MER-AthenaMI/microscopic_imager.html

01101001
2006-Jan-31, 03:52 AM
I don't believe they need to view the lack of diatom skeletons to conclude they're not the white stuff.

Reports are that the Arad location was measured to be extraordinarily high in ferric sulfate salts -- the saltiest spot found so far on Mars.

That wouldn't be compatible with diatom skeletons that are primarily silica and, naturally, insoluble in water.

trinitree88
2006-Feb-04, 02:05 PM
I wish they did. But honestly outside of some nice close-ups, they can't tell the difference between fossils and bird-poop. I'm only joking because no one else is responding. By the way, what is that white stuff in bird-poop?

http://astrogeology.usgs.gov/Projects/MER-AthenaMI/microscopic_imager.html

Re:"white stuff" ???.....it's uric acid. Birds don't excrete urea which is very soluble, but uric acid which isn't, as a white paste....to get rid of nitrogenous wastes.

Fr. Wayne
2006-Feb-04, 09:29 PM
In other words, and this was the punch line I was saving (thanks for the info too): What is the white stuff in B.....,? Answer: More B..... Although now your specificity has popped the air out of my fourth rate theory!:cry: