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The APXS instrument showed Wishstone to be high in phosphorus:<br /><br /><br />PIA07191: Spirit View of 'Wishstone' (False Color)<br />http://photojournal.jpl.nasa.gov/catalog/PIA07191<br /><br /><br />Clay is known to be highly absorptive of phosphorus because of its<br />small grain size:<br /><br /><br />Reducing phosphorus in aquatic systems using modified clays.<br />http://www.eidn.com.au/phos98.html<br /><br /><br />This page discusses the absorption of phosphorus on clays and other<br />sedimentary materials:<br /><br /><br />13.3 Binding of phosphorus in sediments.<br />http://lepo.it.da.ut.ee/~olli/eutr/html/htmlBook_98.html<br /><br /><br />However, I've been informed that the APXS, Pancam, and mini-TES do not<br />have sufficient resolution to see if the phosphorus is concentrated in<br />the dark, smooth inclusions.<br />But perhaps the mini-TES could measure them if it were placed closer to<br />the target rock than is usually done.<br /><br /><br />Bob Clark<br /><br /><br /> <div class="Discussion_UserSignature"> </div>
what is the purpose of this thread and others of yours that are similar? Aside from the fact that your colors are garish, which, in my opinion, makes your processed imagery little more than abstract art, you seem to be offering nothing more than a force feeding of your own work ("Hey, look what I did!"). I certainly speak for no one but myself; however, to save bandwidth and disk space here may I suggest you avail yourself of the many free hosted websites and post your imagery there?
Well, I guess your <i>non sequitur</i> response shows that this thread and other similar ones are really nothing but an exercise in narcissism.<br /><br />Thanks. I'll avoid these threads in the future.