New Madrid Seismic Zone
![Photograph of some diagnostic artifact types in New Madrid region](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/artifacts.jpg?itok=z6-CW8F7)
Detailed Description
Photograph of some diagnostic artifact types in New Madrid region: 1, Campbell Appliqué; 2, Bell Plain; 3, Nodena Elliptical point; 4, Nodena Banks variety point; 5, Parkin Punctate; 6, Madison point; 7, Varney Red Filmed; 8, Barnes Cord Marked; 9, daub with wattle impression. (Photo by Martitia Tuttle, NEHRP-funded research)
Sources/Usage
Public Domain.