Graham Macleod
3/8/2016 8:27:35 PM |
Excellent meteorite John and the feature is something that will be studied more!
This is a great find and well done M8. |
MexicoDoug
3/7/2016 1:14:17 PM |
... stuck in what is basically a bubble in a vein of lava, giving the glassy appearance that a casual observer might imagine from the pictures. |
MexicoDoug
3/7/2016 1:12:55 PM |
I think you make good points John, and it is a very interesting discussion piece which certainly holds a story of its oddity. From the pictures it looks glassy to me which support the hot feature's formation from silicates during impact. I better clarify my comment before referred to the formation of the vug during impact (not the meteorite, my comment reads ambiguously). I was preoccupied with the ability to analyze gas composition that could be sealed into a natural "ampule" - a.k.a. the vug to determine the initial volitiles of formation - after subjected to fracturing during formation, as well as passage to earth, impact and some degree of weathering on earth. One important gut feeling I had abpout it, is that if you look at the positions of virtually all the vugs in all the stones likely paired to this meteorite, they seem all to be formed withing the melt veins. That's what gave me the feeling that this was just a clast with a higher melting point that got featured, stuck |
John Divelbiss
3/7/2016 12:36:47 PM |
Paul G. - How do you know? :/ |
John Divelbiss
3/7/2016 12:35:15 PM |
Doug - the thought that this unique "cone-like feature" was formed from a condensate drip on earth came to mind for me. I will say that the feature appears to be rooted further back into the base material and it can be seen that way in the small vug to the left(I can see it). It appears to be part of a process using the rock material itself starting deeper in the rock, being driven by outgassing of the localized level of impact volatiles. Basically: The cone looks integral to the lunar rock material, and is likely an impact formed condensate drip of some type.
|
Denis gourgues
3/7/2016 4:29:17 AM |
..#1 I see the cone !!!...very interesting... You are the "eagle eyes" !!!!. |
MexicoDoug
3/7/2016 2:43:17 AM |
Very cool. As Dr. Korotev expertly observed, the way I read it, it doesn't appear to be a crystal formed in situ, so there wouldn't seem to be any reason to relate it to resident Lunar water. I'd build his opinion and say your meteorite is shock-melted and take a stab saying it may be a clast that took on a glassy glaze or dripped during its formation. The vug itself would be formed by the hypothesized volatiles during impact. I'd assume the meteorite as found was fractured/permeable so it's a challenge to say what formed it, but studying the 'feature' might possibly provide some added insight there for researchers? |
Paul G
3/7/2016 1:34:01 AM |
Interesting........looks like a smurfs penis |
Andreas Koppelt
3/7/2016 1:21:03 AM |
Strange Thing inside the vug. One of "The Coneheads"? ;-) |
| |