By: magic-gigapans
Image: Robin Rohrback, Mid-Atlantic Geo-Image Collection
License: Creative Commons Non Commercial ⧉

Uploaded: 30 Mar 2020
Last Updated: 15 May 2020

579 megapixels
25,396 x 22,780 pixels
84.7 in X 75.9 in at 300dpi
6,135 pixels per inch

One of two sediment samples from Pfeiffer Beach in California, where flowing water naturally separates heavy minerals from lighter ones. This sample is mostly comprised of lighter minerals. Click here to explore a sample comprised mostly of heavy minerals: https://viewer.gigamacro.com/view/lQXtGQtGWcCjtH5N Sandatlas has an excellent post on heavy minerals and determining the provenance of sand grains here, complete with an aerial photo of Pfeiffer Beach: https://www.sandatlas.org/heavy-minerals/ Sample contributed by Dr. Kenneth Rasmussen.