Dating techniques prehistoric
Antiquarian – A term generally indicating a pre-20th-century collector of ancient artifacts before the development of scientific archaeology and the establishment of standards for excavating and preserving finds. This material may later be used to refill test pits, an action referred to as “back filling.” Balk – A side wall of an excavated unit (square) or a partition of earth left standing between adjoining excavation units.Archaeoastronomy – The study of ancient astronomical knowledge and its role in past cultures. – Before Present; used in age determination instead of B. Balks are often left to aid with stratigraphic analysis.Today alidades are being replaced by Total Stations.
Bronze is an alloy of copper and either zinc or tin.
Sophisticated examples of European palaeolithic parietal art can be seen in the caves of Altamira, Lascaux and Niaux near the Pyrenees, which date to the Magdalenian period (12,000–17,000 years ago), but paintings of comparable skill and complexity were created much earlier.
We have derived new radiocarbon dates for the drawings that decorate the Chauvet cave in Vallon-Pont-d'Arc, Ardèche, France, which confirm that even 30,000 years ago Aurignacian artists, already known as accomplished carvers.
Alluvial soils are usually nutrient-rich and good for agriculture.
In some instances, however, running water carries away nutrients from exposed soils and creates areas unsuitable for agriculture.