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Chronometric Dating

Part of the Dolores Archaeological Program project

Year: 1985

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Summary

The results of chronometric analysis on special specimen samples collected for dating can be found in this dataset. Samples are linked to basic provenience data such as site and field specimen number. The temporal range for each sample will be indicated by variables for earliest and latest dates. These variables give the innermost and outermost dates of wood submitted for dendrochronological dating and their corresponding Tree-Ring Lab symbols indicating how close the date provided is to the actual cutting date for the tree will be denoted by a factor variable. For early and late archaeomagnetic dates that are not clearly defined, factor variables will contain “pre” and “post” prefixes. Context and sample integrity were considered when assigning confidence intervals. These values range from low to high, but a recode of this variable also contains a description of their relative utility. Archaeomagnetic entries also include an indication as to whether the sample had yielded an interpretable date, was discarded, recalibrated, or was related to dendrochronological samples. Length, diameter, and the species of sampled timber for tree-ring data are provided, as well as an approximation of the structural element from which they were taken. Since the majority of dateable material has been derived from botanical resources, treatment of the methodological procedures used in their recovery can be found in the environmental studies mid-level research design (Petersen, Clay et al. 1986). Discussion of research design as it relates to archaeomagnetic dating can be found in Hathaway (1988) and Hathaway and Eighmy (1984). Variables for the chronometric dating dataset have been described by Wilshusen et al. (1999). In most cases, their descriptions are suitable for use as metadata and have been repeated almost verbatim here. Selected resources from the collection of published and unpublished DAP reports may have been used for clarification in some cases and will be appropriately referenced.


Cite this Record

Chronometric Dating. 1985 ( tDAR id: 6206) ; doi:10.6067/XCV8KW5D5P


Data Set Structure

Measurement Column
Count Column
Coded Column
Filename Column
Integration Column (has Ontology)

Table Information: dap-date10

Column Name Data Type Type Category Coding Sheet Ontology
fs The most basic type of provenience data recorded for all information obtained during DAP fieldwork is the field specimen number. These values are sequentially assigned to unique vertical and horizontal locations within each site.
BIGINT  Uncoded Value Lookup : Code none none
cconf This variable was used to describe the relative confidence in the date from a particular sample.
VARCHAR  Uncoded Value Dating Sample none none
cobjectid The Anasazi Heritage Center has given each specimen several unique codes, including cobjectid, to facilitate management of their DAP collections. Since this value is used in association with the AHC ARGUS database for tracking the location of a record, it is important for any researcher requesting objects from the curator.
VARCHAR  Uncoded Value Lookup : Code none none
caccnid The Anasazi Heritage Center has given each specimen several unique codes, including caccnid, to facilitate management of their DAP collections. The first digits of this value indicate the year that it was accessioned.
DOUBLE  Uncoded Value Lookup : Code none none
c1 This variable is used to indicate the presence of related dendrochronological samples, or whether archaeomagnetic samples had yielded an interpretable date or were discarded.
VARCHAR  Uncoded Value Lookup : Description none none
stco To obtain a full site designation for any entry, append the Smithsonian site number to this variable.
VARCHAR  Uncoded Value Provenience and Context : Horizontal Location none none
efact Factors effecting the early date in a dendrochronology sample.
VARCHAR  Uncoded Value Provenience and Context none none
csiteid The Anasazi Heritage Center has given each specimen several unique codes, including csiteid, to facilitate management of their DAP collections. This value denotes the entry's corresponding Smithsonian site number.
VARCHAR  Uncoded Value Provenience and Context : Horizontal Location none none
cdept The Anasazi Heritage Center has given each specimen several unique codes, including cdept, to facilitate management of their DAP collections. This value specifies the tool department to which each record belongs.
VARCHAR  Uncoded Value Lookup : Description none none
c3 This variable indicates the diameter of length of a specimen submitted for dendrochronological analysis.
VARCHAR  Uncoded Value Macrobotanical none none
ofact Describes the possible botanical source of a sample.
VARCHAR  Uncoded Value Provenience and Context none none
sampno Each sample's unique number is indicated by this variable.
BIGINT  Uncoded Value Lookup : Code none none
lfact Factors effecting the late date in a dendrochronology sample.
VARCHAR  Uncoded Value Dating Sample none none
edate The earliest date shown in a dendrochronology sample.
BIGINT  Uncoded Value Dating Sample none none
samptyp DAP analysts were able to select from a range of variables when describing the type of sample collected.
VARCHAR  Uncoded Value Lookup : Description none none
oconf Discusses the confidence in a sample that applies to all things beyond the dating confidence.
VARCHAR  Uncoded Value uncategorized none none
c4 This variable describes the structural function of the timber sampled for dendrochronological analysis.
VARCHAR  Uncoded Value Macrobotanical none none
c2 This variable indicates the length of length of a specimen submitted for dendrochronological analysis.
VARCHAR  Uncoded Value Macrobotanical : Other none none
site Site number refers only to the sequential position of a site within a single Smithsonian state and county designation. To obtain a full site number for any entry, this value must be appended to the Smithsonian state and county designation.
BIGINT  Uncoded Value Provenience and Context : Horizontal Location none none
ldate The latest date in a dendrochronology sample.
BIGINT  Uncoded Value Dating Sample none none

Keywords


Spatial Coverage

min long: -108.59; min lat: 37.47 ; max long: -108.5; max lat: 37.57 ;

Record Identifiers

Bureau of Reclamation(s): 8-07-40-S0562

Source Collections

DAP collections are curated at the Anasazi Heritage Center, Dolores, CO.

File Information

  Name Size Creation Date Date Uploaded Access
dap-date10.csv 1.97mb Jul 30, 2012 2:29:39 PM Public
Arizona State University The Andrew W. Mellon Foundation National Science Foundation National Endowment for the Humanities Society for American Archaeology Archaeological Institute of America