Discovery of distal ejecta from the 1850 Ma Sudbury Impact Event

Discovery of distal ejecta from the 1850 Ma Sudbury Impact Event

A 25?70-cm-thick, laterally correlative layer near the contact between the Paleoproterozoic sedimentary Gunflint Iron Formation and overlying Rove Formation and between the Biwabik Iron Formation and overlying Virginia Formation, western Lake Superior region, contains shocked quartz and feldspar gra...

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Bibliographic Details
Main Authors: Addison, W., Brumpton, G., Vallini, D., Davis, D., Kissin, S., Fralick, P., McNaughton, Neal, Hammond, A.
Format: Journal Article
Published: Geological Society of America Inc 2005
Subjects:
precise U-Pb dates
Minnesota
Gunflint and Biwabik Formations
distal ejecta
Sudbury impactite
Ontario
Online Access:http://hdl.handle.net/20.500.11937/43900

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