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Calvin crater

September 01, 2023

Calvin is an impact crater located in Calvin Township, Cass County in the U.S. state of Michigan. It was discovered in 1987 by Randall Milstein of the Michigan Geological Survey while examining data from about 100 test wells drilled in the area.[1]

It is 5 miles (8.5 km) in diameter and the age is estimated to be 450 ± 10 million years (Ordovician).[2] The crater is not exposed to the surface. It lies about 100 to 400 feet (30–120 m) below today's ground level.[1]

References Edit

  1. ^ a b . The University Record. September 12, 1994. Archived from the original on June 6, 2007. Retrieved May 26, 2006.
  2. ^ "Calvin". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 2009-08-12.

41°50′N 85°57′W / 41.83°N 85.95°W / 41.83; -85.95

External links Edit

  • Exploration of the Calvin impact structure


 

This Cass County, Michigan location article is a stub. You can help Wikipedia by expanding it.

September 01, 2023
calvin, crater, calvin, impact, crater, located, calvin, township, cass, county, state, michigan, discovered, 1987, randall, milstein, michigan, geological, survey, while, examining, data, from, about, test, wells, drilled, area, miles, diameter, estimated, mi. Calvin is an impact crater located in Calvin Township Cass County in the U S state of Michigan It was discovered in 1987 by Randall Milstein of the Michigan Geological Survey while examining data from about 100 test wells drilled in the area 1 It is 5 miles 8 5 km in diameter and the age is estimated to be 450 10 million years Ordovician 2 The crater is not exposed to the surface It lies about 100 to 400 feet 30 120 m below today s ground level 1 References Edit a b Craters are evidence of ancient meteorite strikes The University Record September 12 1994 Archived from the original on June 6 2007 Retrieved May 26 2006 Calvin Earth Impact Database Planetary and Space Science Centre University of New Brunswick Fredericton Retrieved 2009 08 12 41 50 N 85 57 W 41 83 N 85 95 W 41 83 85 95External links EditExploration of the Calvin impact structure nbsp This Cass County Michigan location article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Calvin crater amp oldid 1170292712, wikipedia, wiki, book, books, library,

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