Vanuatu Coral Stable Isotope Data: Readme file
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                   NOAA Paleoclimatology Program
                               and
              World Data Center A - for Paleoclimatology
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NOTE: PLEASE CITE ORIGINAL REFERENCE WHEN USING THIS DATA!!!!!

NAME OF DATA SET: Vanuatu Coral Stable Isotope Data
CONTRIBUTOR: Quinn, T.M.
LAST UPDATE: 8/1994 (Original Receipt by WDCA Paleo)  

IGBP PAGES/WDCA Data Contribution Series #: 1994-014

SUGGESTED DATA CITATION: 
Quinn, T., 1994, Vanuatu Coral Stable Isotope Data.  
IGBP PAGES/World Data Center-A for Paleoclimatology Data Contribution 
Series # 1994-014.  NOAA/NGDC Paleoclimatology Program, Boulder CO, USA.

ORIGINAL REFERENCES: Quinn, T.M., T.J. Crowley, and F.W. Taylor, 1996, 
New stable isotope results from a 173-year coral record from Espiritu Santo, 
Vanuatu, Geophysical Research Letters, v.23, n. 23, 3413-3416.

Quinn, T.M., Taylor, F.W., and Crowley, T.J, 1993.  
A 173 Year Stable Isotope Record from a Tropical South
Pacific Coral, Quaternary Science Reviews, vol. 12, pp 407-418.

GEOGRAPHIC REGION: Western pacific
PERIOD OF RECORD: 1806-1979

LIST OF FILES: vanuatu.xls (Microsoft Excel Workbook), 
vanuatu.2yr.txt, vanuatu.4yr.txt, vanuatu.annual.txt 
(Tab-delimited text)


DESCRIPTION: 
Site: Espiritu Santo Island, Vanuatu, 15S, 167 E.  
173 year record of d18O and d13C. 

Files vanuatu.2yr.txt, vanuatu.4yr.txt, vanuatu.annual.txt, vanuatu.xls added 7/99, 
replacement/update for file espiritu.txt.

Variable names 	QSR Age, QSR 13C, QSR 18O, GRL Age, GRL Qtrly 13C, 
	GRL Qtrly 18O, Year, MA-13C-2y, MA-18O-2y, MA-13C-4y, 
	MA-18O-4y
Variable unit 	per mil relative to PDB
Data precision 	better than 0.8 per mil for both 13C and 18O
Data format 	Excel file
Description of data :
Stable isotopic analyses were done at the University of Michigan.  
Powdered coralline aragonite samples (~ 100 mg) were vacuum roasted for one hour 
at 200°C before isotopic analysis.  Samples were reacted with anhydrous phosphoric 
acid at 75°C in individual reaction vessels of a CarboKiel carbonate extraction system 
coupled to the inlet of a MAT 251 mass spectrometer.   Precision (± 1 s) was monitored 
by daily analyses of a powdered calcite standard (NBS-20), and was better than 0.08‰ 
for both carbon and oxygen.  Values are reported in standard d notation relative to the 
Chicago PDB standard.  Ages were derived from annual density banding.