Entity_Type:
Entity_Type_Label: CatIsland_C14_Table
Entity_Type_Definition:
Radiocarbon (C14) data anlysis results of marine vibracores collected on Cat Island, Mississippi
Entity_Type_Definition_Source: USGS
Attribute:
Attribute_Label: Core ID
Attribute_Definition: Marine vibracore sample number
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Core identification number assigned by USGS scientist
Attribute:
Attribute_Label: Sample depth in core (m)
Attribute_Definition: Sample depth measured from top of core (m)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2.92
Range_Domain_Maximum: 3.75
Attribute:
Attribute_Label: Type
Attribute_Definition: shell type (mollusc)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Type of shell material analyzed.
Attribute:
Attribute_Label: Process
Attribute_Definition:
Data analysis process method used by the Woods Hole Oceanographic Institution National Ocean Sciences Accelerator Mass Spectrometry Facility.
Attribute_Definition_Source:
Woods Hole Oceanographic Institution National Ocean Sciences Accelerator Mass Spectrometry Facility
Attribute_Domain_Values:
Unrepresentable_Domain: Shell type
Attribute:
Attribute_Label: Accession #
Attribute_Definition:
Sample identification used by the Woods Hole Oceanographic Institution National Ocean Sciences Accelerator Mass Spectrometry Facility.
Attribute_Definition_Source:
Woods Hole Oceanographic Institution National Ocean Sciences Accelerator Mass Spectrometry Facility
Attribute_Domain_Values:
Unrepresentable_Domain: Sample number assigned by lab.
Attribute:
Attribute_Label: Fraction Modern
Attribute_Definition:
Fraction Modern is a measurement of the deviation of the 14C/12C ratio of a sample from "Modern." Modern is defined as 95% of the radiocarbon concentration (in AD 1950) of NBS Oxalic Acid I normalized to d13CVPDB=-19 per mil (Olsson, 1970). Please see laboratory website for further discussion of definition (www.whoi.edu/nosams/page.do?pid=40146).
Attribute_Definition_Source:
Woods Hole Oceanographic Institution National Ocean Sciences Accelerator Mass Spectrometry Facility
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.6344
Range_Domain_Maximum: 0.7487
Attribute:
Attribute_Label: Fraction Modern Error
Attribute_Definition:
The error associated with the fraction modern value. Please see laboratory website for further discussion of definition (www.whoi.edu/nosams/page.do?pid=40146).
Attribute_Definition_Source:
Woods Hole Oceanographic Institution National Ocean Sciences Accelerator Mass Spectrometry Facility
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0019
Range_Domain_Maximum: 0.0019
Attribute:
Attribute_Label: Age
Attribute_Definition: Radiocarbon age
Attribute_Definition_Source:
Woods Hole Oceanographic Institution National Ocean Sciences Accelerator Mass Spectrometry Facility
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2320
Range_Domain_Maximum: 3660
Attribute:
Attribute_Label: Age
Attribute_Definition: Radiocarbon age
Attribute_Definition_Source:
Woods Hole Oceanographic Institution National Ocean Sciences Accelerator Mass Spectrometry Facility
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2320
Range_Domain_Maximum: 3660
Attribute:
Attribute_Label: Age
Attribute_Definition: Radiocarbon age error
Attribute_Definition_Source:
Woods Hole Oceanographic Institution National Ocean Sciences Accelerator Mass Spectrometry Facility
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 20
Range_Domain_Maximum: 25
Attribute:
Attribute_Label: d13C
Attribute_Definition: An isotopic signature measuring the stable isotopes 13C/12C.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -1.01
Range_Domain_Maximum: 0.26
Attribute:
Attribute_Label: d13C Source
Attribute_Definition: Measured or not measured.
Attribute_Definition_Source:
Woods Hole Oceanographic Institution National Ocean Sciences Accelerator Mass Spectrometry Facility
Attribute_Domain_Values:
Unrepresentable_Domain: Sample number assigned by lab.
Attribute:
Attribute_Label: D14C
Attribute_Definition:
D14C is "defined in Stuiver and Pollach (1977) as the relative difference between the absolute international standard (base year 1950) and sample activity corrected for age and d13C. The D14C is age corrected to account for decay that took place between collection (or death) and the time of measurement so that two measurements of the same sample made years apart will produce the same calculated D14C result."Please see laboratory website for further discussion of definition (www.whoi.edu/nosams/page.do?pid=40146).
Attribute_Definition_Source:
Woods Hole Oceanographic Institution National Ocean Sciences Accelerator Mass Spectrometry Facility
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -370.22
Range_Domain_Maximum: -256.73