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Thu Feb 18, 2021, 06:12 PM

Wow, the Perseverance landing site is strewn with small spherical concretion-like objects of nearly

Last edited Thu Feb 18, 2021, 06:53 PM - Edit history (1)

equal size...

So-called "Blueberries" ????

If so, are they of biological origin?

I hope we find out...

On edit, they look to be roughly equidistant from each other. Odd distribution (not random).


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Arrow 14 replies Author Time Post
Reply Wow, the Perseverance landing site is strewn with small spherical concretion-like objects of nearly (Original post)
jpak Feb 2021 OP
sdfernando Feb 2021 #1
Laelth Feb 2021 #2
jpak Feb 2021 #3
Rorey Feb 2021 #4
Laelth Feb 2021 #5
Rorey Feb 2021 #6
Laelth Feb 2021 #7
Judi Lynn Feb 2021 #14
jpak Feb 2021 #8
Laelth Feb 2021 #9
jpak Feb 2021 #10
Laelth Feb 2021 #11
eppur_se_muova Feb 2021 #12
jpak Feb 2021 #13

Response to jpak (Original post)

Thu Feb 18, 2021, 06:42 PM

1. Trump's dingle....Oh nevermind! /NT

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Response to jpak (Original post)

Thu Feb 18, 2021, 07:56 PM

2. Similar-sized, rounded igneous rocks. Hmm ...

Perseverance is in an impact crater, after all.

How about this:

Meteor hits Mars. Meteor impact generates sufficient heat to melt igneous rock. Little globules of liquid rock are blasted into the atmosphere. Said globules solidify and freeze nearly instantly, and then they fall to the ground in an almost-perfectly-dispersed raindrop pattern.

Mystery solved ... maybe?



-Laelth

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Response to Laelth (Reply #2)

Thu Feb 18, 2021, 08:05 PM

3. They don't look like terrestrial tectites

But this Mars

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Response to Laelth (Reply #2)

Thu Feb 18, 2021, 08:09 PM

4. Totally off topic: How are you doing, Laelth? NT

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Response to Rorey (Reply #4)

Thu Feb 18, 2021, 08:40 PM

5. We have power and have had it for over 30 hours.

We have food, bottled water, and internet access. We’re gonna make it. It may take some time to get running water restored (tons of water line and water main breaks across the state), but we’re not locked in by the snow, so I think we’ll be OK so long as we keep electricity.

Thanks for asking.



-Laelth

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Response to Laelth (Reply #5)

Thu Feb 18, 2021, 08:44 PM

6. I'm so relieved to hear that!

We were all very worried about you, and also our other Texas DU family.

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Response to Rorey (Reply #6)

Thu Feb 18, 2021, 08:48 PM

7. Thanks. Really. I appreciate it. n/t



-Laelth

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Response to Laelth (Reply #5)

Fri Feb 19, 2021, 09:08 PM

14. Hooray! Also, remember your masks! So good hearing you're OK now. ⭐️

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Response to Laelth (Reply #2)

Thu Feb 18, 2021, 09:16 PM

8. Thought about this more...

Yes, it's an impact crater - that created a body of water - a subaquous sedimentary environment.

The impact debris would be located at the bottom of the stratigraphic column, not the top - even if eroded by wind after the water body evaporated.

I also would expect that the original impact debris would be concentrated in crevices and low places - a clumped distribution, not in a more uniform manner.

In situ precipitation of concretions could be produced by abiotic or biotic processes may be a better hypothesis

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Response to jpak (Reply #8)

Thu Feb 18, 2021, 09:18 PM

9. I like that. Sounds reasonable. n/t

-Laelth

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Response to Laelth (Reply #9)

Thu Feb 18, 2021, 09:32 PM

10. Stay safe my friend

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Response to jpak (Reply #10)

Thu Feb 18, 2021, 09:33 PM

11. Thanks. n/t



-Laelth

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Response to jpak (Original post)

Fri Feb 19, 2021, 06:25 PM

12. These have been well documented at other landing sites. They're hematite (iron oxide).

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Response to eppur_se_muova (Reply #12)

Fri Feb 19, 2021, 06:47 PM

13. Yes, I know

On Earth, similar sphericals are formed secondarily from calcite.

Someone needs to section the Martian variety to see what's inside.

Not going to happen soon though.

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