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Filtering by: Subject Meteorite craters -- Michigan -- Cass County

The Calvin impact crater, Cass County, Michigan : identification and analysis of a subsurface ordovician astrobleme

Creator:

Milstein, Randall L.

Abstract:

The Calvin impact crater is an isolated, nearly circular subsurface structure of Late Ordovician age in southwestern Michigan. The crater is defined by 110 on and gas test wells, has a rim to rim diameter of 6.2 km, an overall dimensional diameter of 8.5 km and consists of a central...

Resource Type:

Dissertation