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Direct dating archeology

The Permian through Jurassic stratigraphy of the Colorado Plateau area of southeastern Utah is a great example of Original Horizontality and the Law of Superposition, two important ideas used in relative dating.

For example, JJA Worsaae used this law to prove the Three Age System.

For more information on stratigraphy and how it is used in archaeology, see the Stratigraphy glossary entry.

A total of 43 new dates were produced from these three areas, including the first direct dates on rock paintings ever in Botswana and Lesotho.

Stratigraphy is based on the law of superposition--like a layer cake, the lowest layers must have been formed first.

For those researchers working in the field of human history, the chronology of events remains a major element of reflection.

Archaeologists have access to various techniques for dating archaeological sites or the objects found on those sites.

From top to bottom: Rounded tan domes of the Navajo Sandstone, layered red Kayenta Formation, cliff-forming, vertically jointed, red Wingate Sandstone, slope-forming, purplish Chinle Formation, layered, lighter-red Moenkopi Formation, and white, layered Cutler Formation sandstone.