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Subject

Geology, Stratigraphic -- Ordovician

ANALYTIC

Title:  
Sediment-dispersed extraterrestrial chromite traces a major asteroid disruption event
Parent:
Science, v.300, no.5621
Creators:
Schmitz, Birger. | Tassinari, Mario. | Häggström, Therese.
Publication:
Washington, D.C, 2003.
Notes:  
Includes bibliographical references.
Call #:  
505 SCI2A V.300, NO.5621
Extent:
p. 961-964. : chart, map, tables ; 27 cm.



ANALYTIC

Title:  
Accretion rates of meteorites and cosmic dust in the early Ordovician
Parent:
Science, v.278, no.5335
Creator:
Schmitz, Birger.
Publication:
Washington, D.C, 1997.
Call #:  
505 SCI2A V.278, NO.5335
Extent:
p.88-90 : charts, tables ; 27 cm.