Zobrazeno 1 - 5
of 5
pro vyhledávání: '"J. C. Claoué‐long"'
Publikováno v:
Australian Journal of Earth Sciences. 44:535-538
SHRIMP zircon dates from Permian ignimbrites and tuffs associated with fossiliferous strata within the Sydney‐Bowen Basin and New England Orogen are used to establish a time scale for the Permian System in eastern Australia. For the first time this
Publikováno v:
Australian Journal of Earth Sciences. 43:401-421
Publikováno v:
Geology. 19:710
Ultrahigh-pressure metamorphism of the diamond-bearing gneisses in the Kokchetav massif, USSR, has been dated at 530 ±7 Ma (2&sgr,) by SHRIMP ion-microprobe analysis of metamorphic zircons. Zircon xenocrysts as old as 2000 Ma have retained original
Publikováno v:
Nature. 307:697-701
Sm–Nd isotope systematics in mafic–ultramafic lavas from the Norseman–Wiluna greenstone belt, Western Australia, have been reinvestigated. A previous age based on mixing lavas and granites is not confirmed: instead, a Sm–Nd age of 3,262 ± 44