How has the methodology for identifying the oldest impact structures shifted based on the Yarrabubba research?

Answer

Moving from searching for the shape of a crater to reading the history in the deep bedrock.

The Yarrabubba discovery highlights a critical shift in methodology: the focus has moved from searching for the shape of a crater to reading the history recorded within the deep bedrock that survived the event.

How has the methodology for identifying the oldest impact structures shifted based on the Yarrabubba research?
agecraterGeologyEarthimpact