There is three main categories that the artifacts fall under; pottery, bones and stone artifacts. An archeologist then uses artifacts that have been found to make a reconstruction the way people lived during that time period.
Archaeologists use two types of dating, relative and absolute.
Subsurface detection methods are also highly effective.
Hot air balloons, x-rays, and sonic detectors can all be used to map subterranean features and hidden chambers, which may not be visible from the ground.
Different forms of absolute dating are radiocarbon and potassium argon dating.
Examples of relative dating are Dendrochronology and palynology.
These sites are sometimes submerged in water, or covered in dense vegetation.
Many sites are buried underground and are not discovered until after they are uncovered by events such as an environmental change like an earthquake or a strong storm that causes ground erode.
Many areas of land are known for historical occurrences, these are obvious sites for archaeological study.Location of a Site Finding a location is the most important way to begin and archaeological dig.Many sites are fairly easy to find because there are monumental.Artifacts buried beneath the ground will conduct shockwaves faster than the surrounding ash.A ground-penetrating radar can determine the stratigraphy of an area.