Hello All,
It is a very important discovery !! I'm inspired by many interrogations: Each collector possede pallasites and iron meteorites in his collection. We know several achondrites types and the most common (HED) would come from Vesta... If iron meteorites come from the heart of larges asteroids and pallasites from the next layer, where are the rocks which constituted mantle rock of these asteroids? Would be it also achondrites? How made difference with real HED from Vesta?
"Palme, in his News & Views item in the same issue of Science, suggests the option that it is a basalt from the planet Mercury. Below the abstract of the Yamaguchi et al. paper." Wich is our knowledge about the Mercury rocks? How to identify a probable Mercurian meteorite among others planetary meteorites? Which ejection speed will must have an Mercury rock , for not be collected by the solar attraction and " to go up " the Solar System towards the Earth?
Whats your ideas?
Best wishes
Vincent
>From: Bernd Pauli HD <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>CC: [EMAIL PROTECTED]
>Subject: Re: [meteorite-list] announcement of new type basaltic meteorite in 'Science'
>Date: Fri, 12 Apr 2002 17:18:54 +0200
>
>[EMAIL PROTECTED] wrote:
>
> > A very interesting paper in SCIENCE today. A team of Japanese and American
> > scientists has investigated the basaltic meteorite NWA 011, and discovered that
> > this meteorite resembles an Eucrite but is different in some aspects, most
> > notably the Oxygen Isotope composition. While Eucrite origins are linked with
> > asteroid 4 Vesta, their results suggest that NWA 011 must be from another
> > parent body. Palme, in his News & Views item in the same issue of Science,
> > suggests the option that it is a basalt from the planet Mercury. Below the
> > abstract of the Yamaguchi et al. paper.
>
>See also:
>
>AFANASIEV S.V. et al. (2000) Dhofar 007 and Northwest Africa 011:
>Two new eucrites of different types (MAPS 35-5, Suppl., 2000, A019):
>
>Here we report data received by studying two new eucrites, Dhofar 007
>from the Oman desert and NWA 011 from the Sahara desert. Based on
>chemical, petrologic, and mineralogical analyses they are classified as
>cumulate (Dhofar 007) and noncumulate (NWA 011).
>
>Best regards,
>
>Bernd
>
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