[meteorite-list] Sutter's Mill slices question, Impact Melt?
Bernd V. Pauli
bernd.pauli at paulinet.de
Thu May 17 14:02:29 EDT 2012
Hello Steve, Alan and List,
Back from watching the Mundrabilla episode of Steve and Geoff!
Great episode! But let's now move on to Steve's question. Steve
inquired:
"...do carbonaceous chondrites ever have impact melt zones in them?"
According to my database queries, impact melt (clasts) have been found
in Kaidun (CR2)* and in NWA 1814 (CB3a).
*ZOLENSKY M. et al. (2001) Kaidun: A smorgasbord
of new asteroid samples (MAPS 36-9, 2001, A233).
Shock melts have been found in QUE 94411 (CBb) and HaH 237 (CBb)*:
*MEIBOM A. et al. (2000) Metal/sulfide-ferrous silicate shock melts in
QUE 94411 and HaH 237: Remains of the missing matrix? (abs. Lunar
Planet. Sci. 31, abstract #1420, Lunar and Planetary Institute, Houston,
Texas, USA, CD-ROM).
... and about QUE 99038 (CM2), Kathleen McBride wrote:
"This carbonaceous chondrite has a dark gray to blackish crust, but appears
to be a m e l t e d g l o b of chondrules spread over the entire exterior
of the rock" (AMN 24-1, Feb 2001, p. 12).
Cheers,
Bernd
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