Good morning List, I wrote yesterday:
> It would be interesting to verify how far away these structures are from > the BP and Oasis structures, and, thus, by extension, from the Libyan > Desert Glass strewn field ! Michel Franco responded: > They are not so far from the BP and Oasis structure (are those 2 stuctures > contemporaneous?) which are South South West of the Libyan Glass Strewnfield. The age(s) of the BP (= British Petroleum) and Oasis structures have not yet been exactly determined, there is only an upper limit of about 120 Ma. LDG has an age of "only" ~28 Ma, which would imply that there is no relationship. C. Koeberl, on the other hand, found that LDG major- and trace-element abundances and Sr- and Nd-isotopic compositions of the rocks from the B.P. and Oasis impact structures in eastern Libya and those of LDGs are similar. But Koeberl is hesitant about confirming a direct relationship because of the lack of age information for the two Libyan structures. Best wishes, Bernd ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list
