Podcast
Questions and Answers
What did U of M researchers recently discover in Minnesota?
What did U of M researchers recently discover in Minnesota?
- A new mineral deposit
- A dinosaur fossil
- An ancient meteor impact crater (correct)
- An underground water source
Where was the discovered crater located?
Where was the discovered crater located?
- In rural farmland
- In the Minnesota Geological Survey office
- In a suburb on the Mississippi River (correct)
- In Minneapolis city center
How does the size of the Minnesota crater compare to the Meteor Crater in Arizona?
How does the size of the Minnesota crater compare to the Meteor Crater in Arizona?
- The comparison is not mentioned
- The Minnesota crater is the same size
- The Minnesota crater is smaller
- The Minnesota crater is larger (correct)
What unit of U of M was involved in the discovery of the crater?
What unit of U of M was involved in the discovery of the crater?
How deep is the Minnesota crater located beneath the surface?
How deep is the Minnesota crater located beneath the surface?
What is the main method used to estimate the diameter of the meteor that hit the Minnesota site?
What is the main method used to estimate the diameter of the meteor that hit the Minnesota site?
What is the estimated range of projectile sizes based on crater diameter estimates and surface rock densities?
What is the estimated range of projectile sizes based on crater diameter estimates and surface rock densities?
What is the characteristic evidence for the crater's origin mentioned in the text?
What is the characteristic evidence for the crater's origin mentioned in the text?
When is it estimated that the strike happened?
When is it estimated that the strike happened?
What geological period was drawing to a close at the time of the strike?
What geological period was drawing to a close at the time of the strike?
What type of rock formed as the Cambrian period was drawing to a close and showed signs of disturbance?
What type of rock formed as the Cambrian period was drawing to a close and showed signs of disturbance?
How many sites are already in the official Earth Impact Database, according to the text?
How many sites are already in the official Earth Impact Database, according to the text?
What is the density of the surface rock mentioned in the text?
What is the density of the surface rock mentioned in the text?
What period does late Cambrian life consist of, according to the text?
What period does late Cambrian life consist of, according to the text?
What is characteristic of meteor craters, according to the text?
What is characteristic of meteor craters, according to the text?
"Overlying younger rock and glacial deposits" showed what sign in relation to disturbance, according to the text?
"Overlying younger rock and glacial deposits" showed what sign in relation to disturbance, according to the text?
What is the characteristic evidence for the crater's origin mentioned in the text?
What is the characteristic evidence for the crater's origin mentioned in the text?
What geological period was drawing to a close at the time of the strike?
What geological period was drawing to a close at the time of the strike?
What period does late Cambrian life consist of, according to the text?
What period does late Cambrian life consist of, according to the text?
What type of rock formed as the Cambrian period was drawing to a close and showed signs of disturbance?
What type of rock formed as the Cambrian period was drawing to a close and showed signs of disturbance?
What is the estimated range of projectile sizes based on crater diameter estimates and surface rock densities?
What is the estimated range of projectile sizes based on crater diameter estimates and surface rock densities?
How does the size of the Minnesota crater compare to the Meteor Crater in Arizona?
How does the size of the Minnesota crater compare to the Meteor Crater in Arizona?
Where was the discovered crater located?
Where was the discovered crater located?
How deep is the Minnesota crater located beneath the surface?
How deep is the Minnesota crater located beneath the surface?
How many sites are already in the official Earth Impact Database, according to the text?
How many sites are already in the official Earth Impact Database, according to the text?
When is it estimated that the strike happened?
When is it estimated that the strike happened?
What is the estimated average depth of the Minnesota crater beneath Inver Grove Heights?
What is the estimated average depth of the Minnesota crater beneath Inver Grove Heights?
What unit of the U of M was involved in the discovery of the crater?
What unit of the U of M was involved in the discovery of the crater?
How does the size of the Minnesota crater compare to the Meteor Crater in Arizona?
How does the size of the Minnesota crater compare to the Meteor Crater in Arizona?
What is characteristic of the Minnesota meteor crater, based on the text?
What is characteristic of the Minnesota meteor crater, based on the text?
How many meteor impact sites have been confirmed worldwide?
How many meteor impact sites have been confirmed worldwide?
What did the U of M researchers recently discover could soon be added to the list of confirmed meteor impact sites?
What did the U of M researchers recently discover could soon be added to the list of confirmed meteor impact sites?
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