This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
usgs ice core icecore lab rocks geology geological rock samples rocksamples symmetry vault pattern geometric Thousands of boxes of rock core samples are stored like books on shelf at the USGS Core Research Center. geology.cr.usgs.gov Photographer Joshua Hicks USGS Thousands of boxes of rock core samples are stored like books on