ANTA01H3 Lecture Notes - Lecture 4: Transect, Midden, Archaeological Site
Document Summary
Relative dating: provides a relative ordering of materials or sites. This object is the same age is this object, or this object is older than this object. Doesn"t tell what age the object is or by how much it"s older . Absolute dating (=chronometric dating): provides an actual chronological age, usually with an error range, for an object or a part of a site (cid:1) (cid:1) (cid:1) Stratigraphy: study of the sequential layering of deposits . Principle of superpositioning: in a stratigraphic sequence, the lower layers were deposited before the upper layers . You always layer on top, so the top layers are more recent. Stratigraphic column: showing the relative positions of layers at a locality. Physical correlation: linking of geological layers (strata) based on their (cid:1) (cid:1) physical characteristics. Space rock hitting the planet enrichment in local addition of iridium for a short time frame. Although it hit mexico, it was found throughout the world.
