Cut rock samples from the Rio Grande Rise
By Pacific Coastal and Marine Science Center
March 2018 (approx.)
![A series of photo graphs of rock samples that have been cut in half to reveal the inside structure.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/RioSamples.jpg?itok=cphIlfNd)
Detailed Description
Cut rock samples from the Rio Grande Rise show iron-manganese, or Fe-Mn, crusts (black and gray) growing on various types of iron-rich substrate rocks (pale to dark brown).
Sources/Usage
Public Domain.