Browsing Геология России by Author "Aggrey K."

Browsing Геология России by Author "Aggrey K."

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  • BERYLLIUM-10 IN AUSTRALASIAN TEKTITES: CONSTRAINTS ON THE LOCATION OF THE SOURCE CRATER 
    Ma P.; Aggrey K.; Tonzola C.; Schnabel C.; de Nicola P.; Herzog G.F.; Wasson J.T.; Glass B.P.; Brown L.; Tera F.; Middleton R.; Klein J. (2004)
    By using accelerator mass spectrometry we have measured the 10Be concentrations of 86 Australasian tektites. Corrected to the time of tektite production ∼0.8 My ago, the 10Be concentrations (106 atom/g) range from 59 for ...
  • EXPOSURE HISTORY OF THE ST-ROBERT (H5) FALL 
    Leya I.; Wieler R.; Aggrey K.; Herzog G.F.; Schnabel C.; Metzler K.; Hildebrand A.K.; Bouchards M.; Jull A.J.T.; Andrews H.R.; Wang M.-S.; Ferko T.E.; Lipschutz M.E.; Wacker J.F.; Neumann S.; Michel R. (2001)
    The compositionally typical H5 chondrite St-Robert has an exposure age, 7.8 Ma, indistinguishable from that of the main cluster of H chondrites. Small values of the cosmogenic 22Ne/21Ne ratio in interior samples imply a ...