Deposit model
Encyclopedia
In the field of archaeology
a deposit model is a method of identifying the character and degree of survival of buried archaeological remains over a specified area without necessarily excavating the whole area.
Following the introduction of archaeology into the planning process in most western nations, the importance of gathering as much information as possible on a site without digging it up has grown. Such information can be used to inform the decisions made by planners, developers and archaeologists about the necessity for, and nature of, any archaeological work in advance of new building.
A deposit model uses the results of previous excavations and other intrusive archaeological investigations to estimate the nature of the archaeology over a wider area. Productive excavations in one area would suggest that land nearby would also be productive. Since the buried archaeological record
is essentially a volume of earth trapped between the two archaeological horizons defined by the underlying natural geology
and the horizon of modern intrusions projecting down into the record, the detailed mapping of the underlying geology of an area has become important in deposit modeling and has resulted in a growth of work for geoarchaeologists
. The results of surveying can be extrapolated between known geographical points and used to estimate the impact of certain types of development.
By taking into account known disturbances to the ground certain areas can be presumed to have limited archaeological potential. A survey of buildings identifying which have basements in them for example may suggest that certain streets have had all their archaeology removed (or truncated) in the past.
Where buildings stand on top of probable or known archaeology the effect that their foundations and floors have on ground water levels may also be important in the degree of preservation that can be expected.
All this information can be stored on computer GIS
database and analysed and augmented as time goes by and further information is revealed.
An early deposit model of the city of York
was produced in the early 1990s and has been used to inform archaeological decisions in the city since.
Archaeology
Archaeology, or archeology , is the study of human society, primarily through the recovery and analysis of the material culture and environmental data that they have left behind, which includes artifacts, architecture, biofacts and cultural landscapes...
a deposit model is a method of identifying the character and degree of survival of buried archaeological remains over a specified area without necessarily excavating the whole area.
Following the introduction of archaeology into the planning process in most western nations, the importance of gathering as much information as possible on a site without digging it up has grown. Such information can be used to inform the decisions made by planners, developers and archaeologists about the necessity for, and nature of, any archaeological work in advance of new building.
A deposit model uses the results of previous excavations and other intrusive archaeological investigations to estimate the nature of the archaeology over a wider area. Productive excavations in one area would suggest that land nearby would also be productive. Since the buried archaeological record
Archaeological record
The archaeological record is the body of physical evidence about the past. It is one of the most basic concepts in archaeology, the academic discipline concerned with documenting and interpreting the archaeological record....
is essentially a volume of earth trapped between the two archaeological horizons defined by the underlying natural geology
Archaeological natural
Natural in archaeology is a term to denote a horizon in the stratigraphic record representing the point before which there is no anthropogenic activity on site and the archaeological record ends. Natural is often the underlying geological makeup of the site and is formed by geological processes...
and the horizon of modern intrusions projecting down into the record, the detailed mapping of the underlying geology of an area has become important in deposit modeling and has resulted in a growth of work for geoarchaeologists
Geoarchaeology
Geoarchaeology is a multi-disciplinary approach which uses the techniques and subject matter of geography, geology and other Earth sciences to examine topics which inform archaeological knowledge and thought...
. The results of surveying can be extrapolated between known geographical points and used to estimate the impact of certain types of development.
By taking into account known disturbances to the ground certain areas can be presumed to have limited archaeological potential. A survey of buildings identifying which have basements in them for example may suggest that certain streets have had all their archaeology removed (or truncated) in the past.
Where buildings stand on top of probable or known archaeology the effect that their foundations and floors have on ground water levels may also be important in the degree of preservation that can be expected.
All this information can be stored on computer GIS
Geographic Information System
A geographic information system, geographical information science, or geospatial information studies is a system designed to capture, store, manipulate, analyze, manage, and present all types of geographically referenced data...
database and analysed and augmented as time goes by and further information is revealed.
An early deposit model of the city of York
York
York is a walled city, situated at the confluence of the Rivers Ouse and Foss in North Yorkshire, England. The city has a rich heritage and has provided the backdrop to major political events throughout much of its two millennia of existence...
was produced in the early 1990s and has been used to inform archaeological decisions in the city since.