Sediment and Soil

Sediment grades listed from boulders down to clay.

Photos of desert pavement and its features.

A lot of geologic history may hide under the rug of the desert pavement.

An introduction to this gritty subject, including the sounds of singing sand dunes.

Baseball is played on a precision geotechnical product.

Farmland tends to collect stones; here's why.

Cone penetrometer testing is carried out near an earthquake fault.

A crew demonstrates ground-penetrating radar in the field.

Geomorphologist David Montgomery puts modern agriculture, and its damage to healthy soils, in the geological context in GSA Today.

Each state in the United States has selected a state soil. The U.S. Department of Agriculture lists them all, plus Puerto Rico and Virgin Islands.

The educational site pedosphere.com has put the heart of the USDA's Keys to Soil Taxonomy, Eighth Edition online. Classify and identify your soil using rigorous professional methods.

A deep source on the wide variety of soils Canada contains. The Soil Landscapes section is full of fine soil profiles, for instances.

Headquartered in Connecticut, the ISCS site offers sand kits and a killer photo gallery.

This research group led by Dr. Melany Hunt has some lovely photos and multimedia of sounding sand, plus groundbreaking research into the phenomenon.

The physics of booming sands, introduced by the University of Michigan's Franco Nori.

The Goddard Space Flight Center hosts this kid-oriented introduction to the field, including science fair ideas, soil profiles, stories, and links.

A whole online book from the National Park Service.

The U.S. Department of Agriculture serves up custom soil maps for anywhere you like in the USA.