Abstract
Coral strontium/calcium (Sr/Ca) and magnesium/calcium (Mg/Ca) ratios might be useful for reconstructing past sea surface temperature (SST) in tropical oceans where instrumental data are limited. However, the link between coral skeletal trace elements and SST is disputed, and biological factors such as skeletal growth rate may also affect trace elements in a coral. We studied the relationships between growth rate and SST and Sr/Ca and Mg/Ca ratios using corals (Porites spp.) cultured in thermostated tanks. Sr/Ca was controlled primarily by SST, while Mg/ Ca mainly reflected the growth rate with negligible contribution from species on both the variations. These relationships are consistent with modeled results of cation partitioning during aragonite crystal formation.
| Original language | English |
|---|---|
| Article number | L12611 |
| Journal | Geophysical Research Letters |
| Volume | 34 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - Jun 28 2007 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Earth and Planetary Sciences (miscellaneous)
Cite this
Empirical assessment of coral Sr/Ca and Mg/Ca ratios as climate proxies using colonies grown at different temperatures. / Takeuchi, Mayuri; Suzuki, Atsushi; Nohara, Masato; Hibino, Kohei; Kawahata, Hodaka.
In: Geophysical Research Letters, Vol. 34, No. 12, L12611, 28.06.2007.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Empirical assessment of coral Sr/Ca and Mg/Ca ratios as climate proxies using colonies grown at different temperatures
AU - Takeuchi, Mayuri
AU - Suzuki, Atsushi
AU - Nohara, Masato
AU - Hibino, Kohei
AU - Kawahata, Hodaka
PY - 2007/6/28
Y1 - 2007/6/28
N2 - Coral strontium/calcium (Sr/Ca) and magnesium/calcium (Mg/Ca) ratios might be useful for reconstructing past sea surface temperature (SST) in tropical oceans where instrumental data are limited. However, the link between coral skeletal trace elements and SST is disputed, and biological factors such as skeletal growth rate may also affect trace elements in a coral. We studied the relationships between growth rate and SST and Sr/Ca and Mg/Ca ratios using corals (Porites spp.) cultured in thermostated tanks. Sr/Ca was controlled primarily by SST, while Mg/ Ca mainly reflected the growth rate with negligible contribution from species on both the variations. These relationships are consistent with modeled results of cation partitioning during aragonite crystal formation.
AB - Coral strontium/calcium (Sr/Ca) and magnesium/calcium (Mg/Ca) ratios might be useful for reconstructing past sea surface temperature (SST) in tropical oceans where instrumental data are limited. However, the link between coral skeletal trace elements and SST is disputed, and biological factors such as skeletal growth rate may also affect trace elements in a coral. We studied the relationships between growth rate and SST and Sr/Ca and Mg/Ca ratios using corals (Porites spp.) cultured in thermostated tanks. Sr/Ca was controlled primarily by SST, while Mg/ Ca mainly reflected the growth rate with negligible contribution from species on both the variations. These relationships are consistent with modeled results of cation partitioning during aragonite crystal formation.
UR - http://www.scopus.com/inward/record.url?scp=38849091294&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38849091294&partnerID=8YFLogxK
U2 - 10.1029/2007GL029628
DO - 10.1029/2007GL029628
M3 - Article
AN - SCOPUS:38849091294
VL - 34
JO - Geophysical Research Letters
JF - Geophysical Research Letters
SN - 0094-8276
IS - 12
M1 - L12611
ER -