Before you dig a garden, it's important to figure out what type of soil you have and then select plants (and amend your soil) ...

SOM improves soil structure and reduces erosion ... For example, soil texture — the relative proportions of sand, silt, and clay particles that make up a particular soil — or the mineralogy ...

When they died, the plants and animals were buried by mud, sand, or silt on the sea floor ... the mineral deposits in the shape of the body structure remain. Besides rock, fossils may be found ...

When European-American settlers first began ploughing in Iowa, they found the weather and local geology had combined this organic mulch with sand and silt to ... soil structure and levels of ...