View Full Version : Spirit finds strange rock on Mars

2004-Dec-31, 09:14 PM
Here's a link to a story about an odd rock that was brushed and examined up close by the Spirit rover. It has a very unusual composition.
A Rock Like No Other (http://marsrovers.jpl.nasa.gov/gallery/press/spirit/20041230a.html)
Any of you geologist types have any ideas as to how this rock was created?

2005-Jan-01, 05:32 PM
It appears to be a breccia (http://geology.about.com/library/bl/images/blbreccia.htm) of some type, possible volcanic or sedimentary. There isn't enough information to say more.