What Caused the Mass Extinction Recorded at the K-T Boundary?
ESU801  Conducting Research

Now consider the geological evidence that has been found at the K-T boundary.

  !   Click the links below to read about the geological evidence at the K-T boundary. Analyze the evidence and take careful notes.

Richard P. Walker, Shawn T. Smith, and Steven M. Smith, USGS
Shocked quartz grains from the K-T boundary in Wyoming, as seen under a microscope.

The K-T Layer

The K-T Event

What Is a Tektite?

What Is Shocked Quartz?

2. What geological findings have been reported at the K-T boundary?

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