Petersburg, West Virginia. Petersburg is a city in Grant County, West Virginia, USA. The population was 2,467 at the 2010 census. It is the county seat of Grant County. Contents.
The particles that make up soil are categorized into three groups by size: sand, silt, and clay. Sand particles are the largest and clay particles the smallest. Although a soil could be all sand, all clay, or all silt, that's rare. Instead most soils are a combination of the three.
This course-textured soil is comprised of sand particles between medium- and coarse-sized particles. Clayey or fine textured soil has clay particles that are also the smallest particles of the three types, and the physical properties of soil containing clay makes the soil gummy and sticky. Silt has moderate-sized particles and a smooth, flour-like texture. Loam soil consists of clay, silt and sand sized particles. Soil texture can also be identified by feel; clay is sticky, silt is smooth and sand is gritty.