Finnigan MAT-251 mass spectrometer with an automated Carousel-48-carbonate device

Linear least squares regressions of four of the tracers (δ18O, δ13O, Ba/Ca, Cd/Ca) against Peruvian SST show highly significant correlations(p<0.0001). Over the annual, biennial, and ENSO (3.8 years) frequency bands, cross‐spectral comparisons show even stronger coherency, with SST frequently accounting for 70–80% of the variance in these tracers.

d18O (CO92SHPU01A): paleoData_isPrimary: '' has been replaced by 'FALSE'
d18O (CO92SHPU01A): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
year (MATae23c4b7e9): paleoData_isPrimary: '' has been replaced by 'TRUE'
year (MATae23c4b7e9): paleoData_primaryAgeColumn: '' has been replaced by 'TRUE'

d18O (CO92SHPU01A): interpretation1_variable: 'T_water' has been replaced by 'temperature'

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year (MATae23c4b7e9): paleoData_units: 'AD' has been replaced by 'yr AD'
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Shen G.T., J. E. Cole, D. W. Lea, L. J. Linn, T. A. McConnaughey, R. G. Fairbanks

Shen, G. T., Cole, J. E., Lea, D. W., Linn, L. J., McConnaughey, T. A. and Fairbanks, R. G.: Surface ocean variability at Galapagos from 1936-1982: Calibration of geochemical tracers in corals, Paleoceanography, 7(5), 563–588, doi:10.1029/92pa01825, 1992.

Punta pitt, Isla San Cristobal, Galapagos island, Ecuador

Ages were determined independently for the two cores on the basis of seasonal d13C variability, which is supported by radiometric and density-banding observations of young Tarawa corals.  We normalized the records, spliced them together using diagnostic density and isotopic patterns, and interpolated them to monthly resolution for statistical analysis

Finnigan  MAT  251  mass  spectrometer  with  an  automated  Carousel-48  carbonate  device

"We obtained excellent replication of...regions of overlap between cores and in slabs where two transects were sampled"

At Tarawa, results from an ongoing monitoring program confirm that intenst rainfall alters the d18O and salinity of the surface mixed layer.  Shallow-growing corals incorporate this isotopic shift in the d18O of their aragonite skeletons.