The Philosophy of Space and time by micromike

MarsMeteorite

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  Internal Sand    


I believe the sandy mixture trapped inside this rock gives the clearest indication of the origins of the rock. The question I have had from the beginning was "How did this rock come into existence with the features that I have seen?" What I have is a rock that is full of vesicles that are full of sand. Originally I thought the lava rock had formed full of holes and that the sand was later deposited in these "holes." But after taking a core sample from the middle of the rock, and some other experiments involving water, I was able to conclude that the rock didn't form that way. It formed by lava moving through a bed of dry sand. The sand exists all through the rock and is even in the walls of the lava. When I first looked at the outer samples (which had much or the sand removed and/or melted when the rock passed through the atmosphere), I couldn't tell exactly how much sand there was or if it filled every vesicle.

The core sample was taken by driving a piece of 1/2" copper tubing directly into the rock. There was a vesicle on one side that was about an inch deep and exactly the same diameter as the copper tubing. This held it firmly in place while I struck the other end with a hammer.

Here you can see the overview of the sample taking. The upper left petri shows the core samples minus the one that was sent to Dick Reesman for testing. The upper right petri shows several "rocks" which represent the contents of different vesicles. Each of these has, to some degree, retained the shape of the vesicle from which it came. The lower left petri contains a piece of the copper tubing used to take the sample. The lower right petri is the remainder of sand that came from the taking of the cores.

I have included this picture to show the amount of damage to the copper tubing after taking the sample. Everyone knows the strength of copper tubing and so you can easily judge the strength of the meteorite. I have claimed this rock was very delicate and this offers proof. You can see that the tubing was only slightly damaged after driving through approximately three inches of meteorite material. This material could not last 13 million years on the Earth without being torn completely apart. If it had been on Earth all this time, it would be dust instead of a complete rock filled with sand.

The next thing I wanted to determine was if this sand represents the original material that was present when the lava was flowing. I reasoned that an examination of the contents of the vesicles might give me clues to its involvement in the creation of this rock. The petri at the top right of the overview picture represents the "rocks" that I examined. I first started by removing the several little "rocks" from the debris of the lower right petri. This material appears under a microscope to be parts of an old dry river system. I originally placed five of these samples in this petri. I used a tool and squashed two of them to see how strong they were. They easily broke apart and the sand you see in the upper right petri came from the first two I broke apart.  This demonstrates that the bonds holding these particles together are not strong and are probably the bonds that formed when the water evaporated from the sample, millions of years ago.

Since the first two "rocks" that I broke apart only had sand in them and seemed pretty delicate, I decided to place a drop of water on the next "rock." Here is a picture before the water was added.

Much to my surprise, look what I found when I put water on this sample.

I think this little rock proves that all of the sandy material inside the vesicles of this rock has been there since the lava encased it. This rock was covered on all sides by the sand. It was much too deep within the meteorite to have gotten there by any process after the lava hardened. It is too big to have infiltrated its way to the center of the meteorite. The only way that I believe that the rock could get inside the meteorite is by the lava flowing around the rock as it "captured" it. If water had ever touched this sample, you can see that the sand would have been removed.  This tiny little rock had to have existed in the sand before the lava flowed.

Also, I wanted to see if there was any magnetic particles that I was sure came from within the sandy material. When I squashed the first little sandy "rock" I ran a magnet over the sample while viewing it through my microscope. I saw numerous particles "jump" to the magnet. The picture below shows magnetic particles clinging to a magnet. The magnet was cleaned and observed to be free of particles before the experiment began. All of the particles shown in the next picture came from within the sandy material that came from the insides of the meteorite.

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