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When these show up on Earth they're often called "moqui marbles." Lots of them are found in Utah and other parts of the American southwest: http://blog.regehr
by regehr 14y ago
When these show up on Earth they're often called "moqui marbles." Lots of them are found in Utah and other parts of the American southwest:
http://blog.regehr.org/archives/703 http://blog.regehr.org/archives/703
In the top pictures you can see them embedded in the canyon walls. In the pics lower down they've eroded out and are just sitting around.
Correction: moqui marbles are analogous to "blueberries." It doesn't seem clear yet what these new concretions are.
- goldfeld 14y agoThey say it's different, which I assume means different from any geological formation they have ever seen, including on Earth, but I fail to understand what makes them so mysterious. Obviously, it wasn't meant for my absolute layman knowledge, but I wish I could have felt a bit of their geological excitement.
- Zenst 14y agoThe mystery is that on earth these types of structures are the byproduct of a type of bacteria, these are slightly different though the atmosphere of Mars is also not the same as Earth so in that whilst that in some ways point towards a sign of life we still don't know for sure and until we work out with complete confiedience if they were made the same kind of way then we have a wonderful mystery.
- pbhjpbhj 14y agoWikipedia says "Evidence suggests that microbial metabolism may have contributed to the formation of some of these concretions". Yet you state it as fact that these forms "are the byproduct of a type of bacteria" [my emphasis]. How come you're so certain?