strong fluctuations in its level. Sites where several climate
archives co-exist, allowing the large-scale climate signal to
be differentiated from local conditions are relatively rare.
The example discussed here shows the benefits to be gained
from the co-location of a glacier archive and a lacustrine
archive.
References
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W. (2012). The oxygen isotopic composition of phytolith assemblages from tropical rainforest soil tops (Queensland, Australia):
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Blard, P.-H., Sylvestre, F., Tripati, A. K., Claude, C., Causse, C.,
Coudrain, A., et al. (2011). Lake highstands on the altiplano
(Tropical Andes) contemporaneous with Heinrich 1 and the
Younger Dryas: New insights from 14C, U-Th dating and d18O
of carbonates. Quaternary Sciences Review, 30, 3973–3989.
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Crespin, J., Sylvestre, F., Alexandre, A., Sonzogni, C., Paillès, C., &
Perga, M.-E. (2010). Re-examination of the temperature-dependent
relationship between d
18
O diatoms and d
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for paleoclimate inferences. Journal of Paleolimnology, 44, 547–557.
Dodd, J. P., & Sharp, Z. D. (2010). A laser fluorination method for
oxygen isotope analysis of biogenic silica and a new oxygen isotope
calibration of modern diatoms in freshwater environments.
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Dodd, J. P., Sharp, Z. D., Fawcett, P. J., Brearley A. J., & McCubbin F.
M. (2012). Rapid post-mortem maturation of diatom silica oxygen
isotope values. Geochemistry, Geophysics, Geosystems, 13. https://
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Fig. 19.3 Reconstruction of lake levels (m) and the isotopic oxygen
composition d
18
O lake water (‰ vs. V-SMOW) from (1) the isotopic
oxygen composition of diatoms (blue lines) using the
thermo-dependent relationship established by Dodd and Sharp (2010)
for T = 5 °C, T = 7.5 °C and T = 10 °C, and (2) the isotopic oxygen
composition of ostracods (green squares) and carbonates (red squares;
Blard et al. 2011) for T = 7.5 °C
19 Air-water Interface: Tropical Lake Diatoms and Isotope …
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