This form can also be used for reporting errors you may find in the database, providing additional information about a date (such as the correction factor that may not have been provided in the published reference) or recalibration of dates.A few changes have been made to the original database, notably the database is now offered online and is searchable using the following fields: site name, site number, LA Division of Archaeology report number, lab number, date BP (before present), and date range BP. D., Calibrated (Cal) BP, Calibrated 2 sigma range (BP), cultural component, and comments.The results window will display the following fields: site name, site number; lab number; conventional radiocarbon age; LA report number; and view.All search results can be sorted by site name, site number, lab number, conventional radiocarbon age, or LA report number.The database can also be searched for a specific date or date range.It is important to remember that all dates entered must be in BP years and that the dates that will be queried are the conventional radiocarbon age (CRA) which will include the /- year range.In rare cases, the dates may have never been published.
Each record in the database should have a conventional radiocarbon age.
For example 16AV1, (this is the site number for the Marksville site in Avoyelles Parish. Depths are given as cm bs (centimeters below surface) or cm/ft/in bd (centimeters, feet, inches below datum). The lab number consists of the Lab Code (abbreviation associated with a radiocarbon dating lab, for example Beta Analytic = Beta) followed by a number.
16 = state designation number, AV= parish abbreviation, 1= sequential number assigned to site with the parish. For a complete list of lab codes referred to in the database see is sometimes referred to as the raw age and represents the uncalibrated radiocarbon date.
Other references may have used a different calibration program and the published dates may vary slightly.
The website offers five basic ways to search the database.