Deposit of Iron-cemented Stream Gravel (Ferricrete)
![Deposit of iron-cemented stream gravel (ferricrete) with embedded wood fragments](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/ferricrete_deposits_l.jpg?itok=BgMfmqQK)
Detailed Description
Deposit of iron-cemented stream gravel (ferricrete) with embedded wood fragments that can be age dated using radiocarbon to determine the age of the ferricrete deposit. Knowing the age of the ferricretes helps scientists determine if the associated enrichment of metals in streams occurred before or after mining in the watershed started.
Sources/Usage
Public Domain.