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Dating material drawn from the archaeological record can made by a direct study of a artifact or may be deduced by association with materials found in the context the item is drawn from or inferred by its point of discovery in the sequence relative to datable contexts. Dating is carried out mainly post excavation but to support good practice some preliminary dating work called spot dating is usually run in tandem with excavation. Dating is considered very important in archaeology for constructing models of past as it relies on the integrity of datable objects and samples. Many disciplines of archaeological science are concerned with dating evidence. The archaeological record is a term used in archaeology to denote the physical remains of past human activities which archaeologists seek out and record in an attempt to analyise and reconstruct the past. ...
I archaeology, an artifact or artefact is any object made or modified by a human culture, and often one later recovered by some archaeological endeavor. ...
Association in archaeology refers to a close relationship between two or more objects. ...
In archaeology once the archaeological record of given site has been excavated, or collected from surface surveys, it is necessary to gain as much data as possible and organize it into a coherent body of information. ...
Excavation is the best-known and most commonly used technique within the science of archaeology. ...
Archaeological science (also known as Archaeometry) is the application of scientific techniques and methodologies to archaeology. ...
Absolute vs relative dating
Absolute methods Absolute dating methods rely on using some physical property of a object or sample to calculate its age. Examples are: Absolute dating is the process of determining a specific archaeological date. ...
Radiocarbon dating is a radiometric dating method that uses the naturally occurring isotope carbon-14 to determine the age of carbonaceous materials up to ca 60,000 years. ...
The growth rings of an unknown tree species, at Bristol Zoo, England Pinus taeda Cross section showing annual rings, Cheraw, South Carolina Pine stump showing growth rings Dendrochronology or tree-ring dating is the method of scientific dating based on the analysis of tree-ring growth patterns. ...
Thermoluminescence (TL) dating is the determination by means of measuring the accumulated radiation dose of the time elapsed since material containing crystalline minerals was either heated (lava, ceramics) or exposed to sunlight (sediments). ...
Optically Stimulated Luminescence is a method for measuring doses from ionizing radiation (commonly known as radioactive radiation). ...
Optical dating is a method of determining how long ago minerals were last exposed to daylight. ...
Potassium-argon or K-Ar dating is a geochronological method used in many geoscience disciplines. ...
Genera The hominids are the members of the biological family Hominidae (the great apes), which includes humans, chimpanzees, gorillas, and orangutans. ...
Odessa Numismatics Museum is the first Ukrainian historical museum of new type whose tasks became studying the history of coinage and money circulation of the Ukrainian state and also preservation and demonstration the major historical relics belonging to ancient history and culture of the Northern Black Sea Region and Rus...
Relative methods Relative or indirect methods tend to use associations built from the archaeological body of knowledge. An example is seriation. Ultimately, relative dating relies on tying into absolute dating with reference to the present. One example of this is dendrochronology which uses a process of tying floating chronologies of tree rings together by cross referencing a body of work. Before the advent of absolute dating in the 20th century, archaeologists and geologists were largely limited to the use of relative dating techniques. ...
Before Present (BP) years are the units of time (counted backwards to the past) used to report raw radiocarbon ages and dates referenced to the BP scale origin in the year AD 1950 (identical to 1950 CE). ...
The growth rings of an unknown tree species, at Bristol Zoo, England Pinus taeda Cross section showing annual rings, Cheraw, South Carolina Pine stump showing growth rings Dendrochronology or tree-ring dating is the method of scientific dating based on the analysis of tree-ring growth patterns. ...
In practice several different dating techniques must be applied in some circumstances, thus dating evidence for much of an archaeological sequence recorded during excavation requires matching information from known absolute or some associated steps, with a careful study of stratigraphic relationships.
Stratigraphic relationships Archaeologists investigating a site may wish to date the activity rather than artifacts on site by dating the individual contexts which represents events. Some degree of dating objects by their position in the sequence can be made with known datable elements of the archaeological record or other assumed datable contexts deduced by a regressive form of relative dating which in turn can fix events represented by contexts to some range in time. For example the date of formation of a context which is totally sealed between two datable layers will fall between the dates of the two layers sealing it. However the date of contexts often fall in a range of possibilities so using them to date others is not a straightforward process. Archaeology or sometimes in American English archeology (from the Greek words αρχαίος = ancient and λόγος = word/speech) is the study of human cultures through the recovery, documentation and analysis of material remains, including architecture, artefacts, biofacts, human remains, and landscapes. ...
Take the hypothetical section fig A. Here we can see 12 contexts, each numbered with a unique context number and whose sequence is represented in the Harris matrix in fig B. Half-section through a Saxon pit In archaeology a section is a view of an excavated archaeological trench or feature showing the contents of that feature in two dimensions (vertical and horizontal) and thereby illustrating its profile and stratigraphy. ...
The Harris Matrix or Harris-Winchester Matrix is a method of recording and interpreting archaeological sites. ...
- A horizontal layer
- Masonry wall remnant
- Backfill of the wall construction trench (sometimes called construction cut)
- A horizontal layer, probably the same as 1
- Construction cut for wall 2
- A clay floor abutting wall 2
- Fill of shallow cut 8
- Shallow pit cut
- A horizontal layer
- A horizontal layer, probably the same as 9
- Natural sterile ground formed before human occupation of the site
- Trample in the base of cut 5 formed by workmen's boots constructing the structure wall 2 and floor 6 is associated with.
If we know the date of context 1 and context 9 we can deduce that context 7, the backfilling of pit 8, occurred sometime after the date for 9 but before the date for 1, and if we recover an assemblage of artifacts from context 7 that occur nowhere else in the sequence, we have isolated them with a reasonable degree of certainty to a discrete range of time. In this instance we can now use the date we have for finds in context 7 to date other sites and sequences. In practice a huge amount of cross referencing with other recorded sequences is required to produce dating series from startigraphic relationships such as the work in seriation. Association in archaeology refers to a close relationship between two or more objects. ...
An assemblage is an archaeological term meaning a group of different artefacts found in association with one another, that is, in the same context. ...
Residual finds One issue in using stratigraphic relationships is that the date of artifacts in a context does not represent the date of the context, but just the earliest date the context could be. If we look at the sequence in fig A we may find that the cut for the construction of wall 2, context 5 has cut through layer 9 and 10 and in doing so has introduced the possibility that artifacts from the layers 9 and 10 may be redeposited higher up the sequence in the context representing the backfill of the construction cut, context 3. These artifacts are referred to as "residual" or "residual finds". It is crucial that dating a context is based on the latest dating evidence drawn from the context. We can also see that if the fill of cut 5; the wall 2, backfill 3 and trample 12 are not removed entirely during excavation because of "undercutting", non-residual artifacts from these latter "higher" contexts 2, 3 and 12 could contaminate the excavation of earlier contexts such as 9 and 10 and give false dating information. Excavation is the best-known and most commonly used technique within the science of archaeology. ...
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