Define seriation dating

factor analysis: A multivariate statistical technique which assesses the degree of variation between artifact types, and is based on a matrix of correlation coefficients which measure the relative association between any two variables.fall-off analysis: The study of regularities in the way in which quantities of traded items found in the archaeological record decline as the distance from the source increases.This may be plotted as a fall-off curve, with the quantities of material (Y-axis) plotted against the distance from the source (X-axis).faunal correlation: Determination of the relative ages of different geological strata by comparing the fossils within the strata and assigning similar ages to strata with similar fossils; a method of relative dating.fission-track dating: A dating method based on the operation of a radioactive clock, the spontaneous fission of an isotope of uranium present in a wide range of rocks and minerals.As with potassium-argon dating, with whose time range it overlaps, the method gives useful dates from rocks adjacent to archaeological material.formation processes: Those processes affecting the way in which archaeological materials came to be buried, and their subsequent history afterwards.

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It is the first amino acid incorporated into a polypeptide chain in prokaryotes and in eukaryotic cellular organelles.fossil cuticles: The outermost protective layer of the skin of leaves or blades of grass, made of cutin, a very resistant material that survives in the archaeological record often in feces.

Cuticular analysis is a useful adjunct to palynology in environmental reconstruction.fossil ice wedges: Soil features caused when the ground freezes and contracts, opening up fissures in the permafrost that fill with ice wedges.

The fossil wedges are proof of past cooling of climate and of the depth of the permafrost.

Frankfurt plane: A widely agreed upon plane for orienting crania to allow valid comparisons, and to approximate the position of the head during life.

In this plane a line between the top of the external auditory meatus and the lowest point on the orbit is made horizontal.frequency seriation: A relative dating method which relies principally on measuring changes in the proportional abundance, or frequency, observed among finds (e.g.

counts of tool types, or of ceramic fabrics).frontal boss (metopic eminence): A bulge or eminence on the frontal, at the middle of the squama.It may be centrally located, or exist as paired frontal tubers that mark the location of the original ossification centers.frontal trigone: A concave smooth triangular area on the frontal bone just behind the orbits.Its base is formed by the supraorbital torus and its apex by converging temporal lines. Archaeological Perspectives on Three Cemeteries of Old New York Even without excavation, cemeteries and especially the gravestones they contain provide an unusual laboratory for the archaeologist.Along with the predictable information found on them--a name, a date, and possibly an epitaph--archaeologists have been able to reach beyond the stones themselves.Grave markers are essentially "documents in stone," and for the archaeologist these relics of Early America have proven fertile ground for an analysis of how artifacts may have changed over time.

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