Meteorite Monday: Or not…

I’ll admit, I kinda let the ball drop on this week’s Meteorite Monday. Normally, I try to get this post done a few days ahead of time, but this weekend has been filled with work, chemistry, petrology readings and completing scholarship essays so I can get some research money.

However, I do have a neat post planned that talks about a recent paper that was published by some researchers at MIT. In the paper, “Chondrites as samples of differentiated planetesimals”, Elkins-Tanton et al., postulate that carbonaceous chondrites could have originated from asteroids that experienced differentiation. This challenges the current paradigm that such chondrites actually come from bodies that didn’t grow large enough to develop a core and mantle. Some have speculated that if true, this could change the way we view the formation of the planets. It’s a good read and if you have time, I’d recommend giving it a look over.

The Allende Meteorite- One of the meteorites used in the Elkins-Tanton et al., study.

6 thoughts on “Meteorite Monday: Or not…

  1. When I was doing neutron activation analysis, we used powdered Allende as our control/standard (Technically, control). I understand why it was chemically desirable, but it seemed like such a waste!

    • Powdering a meteorite seems so wrong to me. Although, early meteorite analysis was performed with some rather nasty chemicals that destroyed the sample.

      What kind of research were you doing that required powdered Allende?

  2. chondrite meteorites are seeds of planets produce by an old cosmic bodies to produce more planets . one planet is a result of one chondrite meteorite is a living organism like a tree thus growing and expanding.

    • In a way, chondrites can be seen as seeds that start planets, but that’s really stretching the analogy. In truth, planets are the byproduct of many chondrites that accreted to form planets. Those planetesimal’s that survived the bombardment of the early solar system became the rocky inner planets. Those that didn’t survive can be found in the asteroid belt. I don’t buy into the earth expanding and growing either. If that were the case, we should be able to measure this growth, not only on our planet, but on others since they formed from chondrites as well.

      • Like I said, I can see your point as a possible analogy. But you failed to answer my question about quantifiable evidence. If the earth is expanding, why hasn’t it been measured or detected by our satellites? Where is the data to back up your claims?

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