SPIRIT UPDATE: Spirit probes deeper into 'Clovis'outcrop-sol 209-218, August 23,2004 Spirit continued work over the past nine sols at a rock called \Clovis.\ The rover used roscop its rock abrasion tool, microscopic imager, alpha particle X-ray- spectrometer,and Mossbauer spectrometer to probe deeper into the history of this rock. Clovis is the most altered rock encountered by Spirit to date. It is part of a rock outcrop located on the\West Spur\ of the \Columbia