Search Results - Virginia Destroyers

Discovery of distal ejecta from the 1850 Ma Sudbury Impact Event by Addison, W., Brumpton, G., Vallini, D., Davis, D., Kissin, S., Fralick, P., McNaughton, Neal, Hammond, A.

“…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 grains found within accretionary lapilli, accreted grain clusters, and spherule masses, demonstrating that the layer contains hypervelocity impact ejecta. …”
Get full text