Barbados Oxygen Isotope Data (delta 18O) for the Late Pleistocene

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: T.P. Guilderson
Originator: R.G. Fairbanks
Originator: J.L. Rubenstone
Publication_Date: 200102
Title:
Barbados Oxygen Isotope Data (delta 18O) for the Late Pleistocene
Series_Information:
Series_Name: World Data Center for Paleoclimatology Data Contribution Series
Issue_Identification: 2001-010
Publication_Information:
Publication_Place: Boulder
Publisher: World Data Center for Paleoclimatology, Boulder
Description:
Abstract:
Coral-based delta18O time-series derived from measurements made on submerged or drowned coral reef sequence. The core samples used have been described elsewhere (cf. Fairbanks, 1989; Guilderson et al., 1994). Measurements were made on three different species of corals: the reef-crest Acropora palmata and the mixed or buttress zone species Montastrea annularis and Porites asteroides. Linear growth rates of individual corals were determined by using the low density to high-density band distance as an approximate annual chronometer. To minimize growth-rate kinetic induced effects, we only analyzed specimens with similar linear growth rates and from the same relative position within the corals. Typical linear extension rates were 5mm/year for all specimens analyzed and ranged from 3 to 7 mm/year. Two to four parallel transects encompassing 4-8 years per transect were extracted using a micro dental drill along the main vertical growth axis. To minimize the potential for skeletal inhomogeneities, we attempted to only sample theca (walls), except for the P. asteroides specimens whose skeletal architecture is too fine for theca sampling. A. palmata specimens were only sampled along the upper growing surface as deduced from the skeletal architecture observed in x-radiographs. We used x-ray diffraction analysis of drilled and ground specimens to confirm that the aragonite was pristine as indicated by the absence of any calcite peaks (detection limit 0.5 weight percent). The sampling protocol did not convert aragonite to calcite. Living specimens collected over the last ~20 years were treated in a similar fashion to the offshore cores. Samples (100-200óg) were reacted at 90óC in a Carousel-48 device and analyzed on a Finnigan MAT 251 isotope ratio mass spectrometer. Calibration is through secondary standards calibrated via NBS (now NIST SRM) standards 16, 17, 19, and 20. Analytical precision of concurrently analyzed standards is better than ó0.05" (1-sigma) for both oxygen and carbon. Data is reported in d-notation relative to Pee Dee Belemnite using the defined values of NBS-20 (d18O -4.14" PDB, d13C -1.06" PDB). We have not corrected the absolute values of our results for the "acid-alpha" difference between aragonite (samples) and calcite (standards). Radiocarbon and 230Th/234U chronological control is provided by previously reported radiocarbon and Th/U TIMS measurements (Fairbanks 1989; 1990; Bard et al., 1993), supplemented by additional measurements (Fairbanks et al., in prep.). The majority of samples through the deglaciation have been dated with both techniques. M. annularis specimens older than 15.7 14C kyrs have yet to be Th/U dated. Absolute ages for these specimens are interpolated using a least squares regression through the appropriate coral data (Fairbanks et al., in prep.). Ice volume residual Dd18O is calculated in a similar fashion to Guilderson et al., (1994). In specimens older than the last glacial maximum as determined by the A. palmata Barbados sea level record, the residual is calculated using an ice volume component of 1.1".
Purpose: Paleoclimatic Research
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Currentness_Reference: Publication Date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None Planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -60
East_Bounding_Coordinate: -60
North_Bounding_Coordinate: 13
South_Bounding_Coordinate: 13
Keywords:
Theme:
Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
Theme_Keyword: EARTH SCIENCE > Paleoclimate > Coral Records > Delta 18O
Theme_Keyword:
EARTH SCIENCE > Paleoclimate > Coral Records > Linear extension rate
Theme_Keyword: EARTH SCIENCE > Paleoclimate > Coral Records > Density
Theme:
Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
Theme_Keyword: Numeric Data Sets > Paleoclimatology
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: climatologyMeteorologyAtmosphere
Theme_Keyword: 004
Place:
Place_Keyword_Thesaurus: CoRIS Place Thesaurus
Place_Keyword: COUNTRY/TERRITORY > Barbados > Barbados (13N059W0000)
Place_Keyword:
OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Windward Islands > Barbados (13N059W0000)
Temporal:
Temporal_Keyword_Thesaurus: CoRIS Temporal Thesaurus
Temporal_Keyword: PLEISTOCENE
Access_Constraints: None
Use_Constraints: PLEASE CITE ORIGINAL REFERENCE WHEN USING THIS DATA
Data_Set_Credit:
T.P. Guilderson, R.G. Fairbanks, J.L. Rubenstone Tropical Atlantic coral oxygen isotopes: glacial-interglacial sea surface temperatures and climate change. Marine Geology, 172, 75-89, 2001.

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: coral variable
Entity_Type_Definition: coral variable
Entity_Type_Definition_Source: coral variable
Attribute:
Attribute_Label: del18O
Attribute_Definition: delta 18O (per mil) relative to PDB
Attribute_Definition_Source:
Craig, H., 1957. Isotopic standards for mass spectrometric analysis of carbon dioxide. Geochimica Cosmochimica Acta, 12:113-140
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: unknown
Range_Domain_Maximum: unknown
Attribute_Units_of_Measure: per mil
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: d18O_PD
Attribute_Definition: delta 18O relative to present
Attribute_Definition_Source:
T.P. Guilderson, R.G. Fairbanks, J.L. Rubenstone Tropical Atlantic coral oxygen isotopes: glacial-interglacial sea surface temperatures and climate change. Marine Geology, 172, 75-89, 2001.
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: unknown
Range_Domain_Maximum: unknown
Attribute_Units_of_Measure: unknown
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: Dd18O
Attribute_Definition: delta 18O equivalent to ice volume corrected residual
Attribute_Definition_Source:
T.P. Guilderson, R.G. Fairbanks, J.L. Rubenstone Tropical Atlantic coral oxygen isotopes: glacial-interglacial sea surface temperatures and climate change. Marine Geology, 172, 75-89, 2001.
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: unknown
Range_Domain_Maximum: unknown
Attribute_Units_of_Measure: unknown
Attribute_Measurement_Resolution: .01

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Paleoclimatology Program
Contact_Position: Data Manager
Contact_Address:
Address_Type: Mailing Address
Address: 325 Broadway, Code E/CC23
City: Boulder
State_or_Province: Colorado
Postal_Code: 80305-3328
Country: U.S.A.
Contact_Voice_Telephone: (303) 497-6280
Contact_TDD/TTY_Telephone: (303) 497-6958
Contact_Facsimile_Telephone: (303) 497-6513
Contact_Electronic_Mail_Address: paleo@noaa.gov
Hours_of_Service: 9-5 MST Monday-Friday
Resource_Description: Other Documents
Distribution_Liability:
Disclaimer- While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ASCII
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
<ftp://ftp.ncdc.noaa.gov/pub/data/paleo/coral/atlantic/barbados_2001.txt>
Access_Instructions:
Data can be obtained from <http://www.ngdc.noaa.gov/paleo> and via anonymous ftp to ftp.ngdc.noaa.gov. Diskette and paper copies may be obtained by mail.
Offline_Option:
Offline_Media: Diskette
Recording_Format: cpio
Fees:
On-line data are available free of charge, other forms are available for the cost of reproduction
Ordering_Instructions: Contact the Data Center to order paper copies of data
Turnaround: 4 days

Metadata_Reference_Information:
Metadata_Date: 20110331
Metadata_Review_Date: 20110331
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Paleoclimatology Program
Contact_Position: Data Manager
Contact_Address:
Address_Type: Mailing Address
Address: 325 Broadway, Code E/CC23
City: Boulder
State_or_Province: Colorado
Postal_Code: 80305-3328
Country: U.S.A.
Contact_Voice_Telephone: (303) 497-6280
Contact_TDD/TTY_Telephone: (303) 497-6958
Contact_Facsimile_Telephone: (303) 497-6513
Contact_Electronic_Mail_Address: paleo@noaa.gov
Hours_of_Service: 9-5 MST Monday-Friday
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: No Constraints
Metadata_Use_Constraints: No Constraints

CoRIS:
CoRIS_ID: 20020325082707
CoRIS_Children: None
CoRIS_Beginning_Date: 00010101
CoRIS_Ending_Date: 99991231
CoRIS_Metadata_Link:
<http://www.coris.noaa.gov/metadata/records/html/paleoclimatology_barbados_2001.html>
CoRIS_Tracking_ID: 7

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