Tarawa Stable Isotope (delta 18O, delta 13C) and Mineralogy Data for 1959 to 1979

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Frequently anticipated questions:


What does this data set describe?

Title:
Tarawa Stable Isotope (delta 18O, delta 13C) and Mineralogy Data for 1959 to 1979
Abstract:
Site: Tarawa Atoll, Republic of Kiribati (1 deg N, 172 deg E). Water depth: 2-4m. Coral species Hydnophora microconos. Time span: 1959-79 at monthly resolution. Files contains stable isotope data presented by Cole and Fairbanks (1990), Mn/Ca data presented by Shen et al. (1992b), and normalized d18O data presented by Cole, Fairbanks, and Shen (1993) for the years 1893-1959. Stable isotopes were measured on untreated coral samples at Lamont-Doherty Earth Observatory by J. Cole and R. Fairbanks, on a Finnigan MAT-251 mass spectrometer with automated Carousel-48 carbonate device. Values are in standard per mil notation relative to PDB. Isotopic data are given for two corals from the same site, LDGO-39 and LDGO-44. Measurement precisions are 0.08 for d18O and 0.04 for d13C. Mn/Ca measurements were performed at the University of Washington by G. Shen and L. Linn by graphite furnace atomic absorption spectrophotometry; only coral LDGO-44 was analyzed for Mn/Ca. Sample treatment procedures are described in Shen et al. (1992b). Average departures from duplicate means are 1.6nmol Mn/mol Ca. Ages for all samples in this file were derived from annual variations in d13C, assumed to correspond with annual rainy seasons as described in Cole and Fairbanks (1990).Density banding confirms these ages for LDGO-44 samples, but coral LDGO-39 did not exhibit clearly annual banding patterns. For Mn/Ca data prior to 1962 in LDGO-44, ages were determined by extrapolation based on density band data, as isotopic data only extends to 1962 in LDGO-44.
  1. How should this data set be cited?

    Cole, J. E., 199508, Tarawa Stable Isotope (delta 18O, delta 13C) and Mineralogy Data for 1959 to 1979: World Data Center for Paleoclimatology Data Contribution Series 1993-014, World Data Center for Paleoclimatology, Boulder, Boulder.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: 172
    East_Bounding_Coordinate: 172
    North_Bounding_Coordinate: 1
    South_Bounding_Coordinate: 1

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Beginning_Date: 1959
    Ending_Date: 1979
    Currentness_Reference: Publication Date

  5. What is the general form of this data set?

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

    2. What coordinate system is used to represent geographic features?

  7. How does the data set describe geographic features?

    coral variable
    coral variable (Source: coral variable)

    del13C
    delta 13C (per mil) (Source: Craig, H., 1957. Isotopic standards for mass spectrometric analysis of carbon dioxide. Geochimica Cosmochimica Acta, 12:113-140; Fairbanks, R.G., and R.E. Dodge, Annual periodicity of the O-18/O-16 and C-13/C-12 ratios in the coral Montastrea annularis, Geochimica et Cosmochimica Acta, 43, 1979.)

    Range of values
    Minimum:unknown
    Maximum:unknown
    Units:per mil
    Resolution:0.01

    del18O
    delta 18O (per mil) relative to PDB (Source: Craig, H., 1957. Isotopic standards for mass spectrometric analysis of carbon dioxide. Geochimica Cosmochimica Acta, 12:113-140)

    Range of values
    Minimum:unknown
    Maximum:unknown
    Units:per mil
    Resolution:0.01

    MnCa
    Mn/Ca Ratio (Source: Shen, G. T., J. E. Cole, D. W. Lea, L. J. Linn, T. A. McConnaughey, and R. G. Fairbanks, 1989, Surface ocean variability at Galapagos from 1936-1982: calibration of geochemical tracers in corals: Paleoceanography, v. 7, p. 563-588; Shen, G.T., T.M. Campbell, R.B. Dunbar, G.M. Wellington, M.W. Colgan, and P.W. Glynn, Paleochemistry of manganese in corals from the Galapagos Islands, Coral Reefs, 10, 91-101, 1991)

    Range of values
    Minimum:unknown
    Maximum:unknown
    Units:nmol/mol
    Resolution:1.0


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    Cole, J. E., R. G. Fairbanks, and G.T. Shen, 1993, The Spectrum of Recent Variability in the Southern Oscillation: Results from a Tarawa Atoll Coral. Science 260, 1790-1793. and Cole, J. E., and R. G. Fairbanks, The Southern Oscillation recorded in the oxygen isotopes of corals from Tarawa Atoll, Paleoceanography, 5, 669-683, 1990. and Shen, G. T., L. J. Linn, T. M. Campbell, J. E. Cole, and R. G. Fairbanks, A chemical indicator of trade wind reversal in corals from the western tropical Pacific, Journal of Geophysical Research, 97, 12,689-12,698, 1992b.

  3. To whom should users address questions about the data?


Why was the data set created?

Paleoclimatic Research


How was the data set created?

  1. From what previous works were the data drawn?

  2. How were the data generated, processed, and modified?

  3. What similar or related data should the user be aware of?


How reliable are the data; what problems remain in the data set?


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None
Use_Constraints: Please cite original reference when using this data.

  1. Who distributes the data set? (Distributor 1 of 1)

    NOAA Paleoclimatology Program
    Data Manager
    325 Broadway, Code E/CC23
    Boulder, Colorado 80305-3328
    U.S.A.

    (303) 497-6280 (voice)
    (303) 497-6513 (FAX)
    paleo@noaa.gov

    Hours_of_Service: 9-5 MST Monday-Friday
  2. What's the catalog number I need to order this data set?

    Other Documents

  3. What legal disclaimers am I supposed to read?

    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.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 31-Mar-2011
Last Reviewed: 31-Mar-2011
Metadata author:
NOAA Paleoclimatology Program
Data Manager
325 Broadway, Code E/CC23
Boulder, Colorado 80305-3328
U.S.A.

(303) 497-6280 (voice)
(303) 497-6513 (FAX)
paleo@noaa.gov

Hours_of_Service: 9-5 MST Monday-Friday
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)


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