High-resolution Sr/Ca records in sclerosponges calibrated to temperature in situ

Rosenheim, B. E.; Swart, Peter K.; Thorrold, Simon R.; Willenz, Philippe; Berry, Lorraine; Latkoczy, Christopher

doi:10.1130/g20117.1

Cited by 73 publications

(73 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The latter is likely the main cause for the small, albeit significant, discrepancy between the gastropod and Grossman and Ku [1986] temperature sensitivity values. [17] Temperature control on Sr uptake into aragonite has been noted in inorganic laboratory precipitates [Kinsman and Holland, 1969], corals [Weber, 1973], and scelerosponges [Rosenheim et al, 2004]. In these cases, Sr/Ca ratios exhibit an inverse relationship with temperature, which is consistent with thermodynamic expectations.…”

supporting

confidence: 72%

Strontium to calcium ratios in the marine gastropod Conus ermineus: Growth rate effects and temperature calibration

Sosdian

Gentry

Lear

et al. 2006

Geochem Geophys Geosyst

View full text Add to dashboard Cite

[1] Here we investigate the potential of Sr/Ca ratios in the marine gastropod Conus ermineus for reconstructing seawater temperatures. We present annually resolved records of Sr/Ca and d18 O for four shells collected alive from the Flower Garden Banks National Marine Sanctuary in the Gulf of Mexico. Our results show that variations in Sr/Ca and d18 O covary with the in situ seasonal temperature cycle. Sr/ Ca and temperature are positively correlated, in contrast with the inverse relationship found in inorganically precipitated aragonite. The seasonal Sr/Ca variability is superimposed on a long-term trend of increasing Sr/Ca with age. Both the seasonal and long-term ontogenetic changes in Sr/Ca are associated with variations in growth rate, defined here as the shell linear extension rate (LER); the seasonal variability in LER is superimposed on a long-term decrease with ontogeny. Thus the covariance of Sr/Ca ratios with temperature and LER suggests that Sr incorporation is likely driven by temperature influence on growth rate, rather than by thermodynamic effects. Unlike the seasonal variability, the ontogenetic effect is characterized by inverse covariation between Sr/Ca and LER, suggesting that Sr/Ca variability is not controlled by growth rate alone, but probably by two different biomineralization mechanisms, one related to temperature and the other related to age. We use the seasonal Sr/Ca signal of four shells to construct a temperature calibration. To minimize the ontogenetic effects, we separate the records into juvenile and adult growth stages and calculate the Sr/Ca-temperature (T) relationships: Juvenile: Sr/Ca (mmol mol the seasonal estimates reflects the high variability among specimens. To reduce the uncertainty on seasonal temperatures, we propose combining records from multiple shells to generate an average temperature record. The potential of this approach needs, however, to be validated in other locations.

show abstract

supporting

confidence: 72%

Strontium to calcium ratios in the marine gastropod Conus ermineus: Growth rate effects and temperature calibration

Sosdian

Gentry

Lear

et al. 2006

Geochem Geophys Geosyst

View full text Add to dashboard Cite

show abstract

“…1). These archives include fossil corals (Beck et al, 1992;Felis et al, 2004;Corrège et al, 2004;Sun et al, 2005;Lazareth et al, 2013), mollusk shells (Shackleton, 1973;Driscoll et al, 2014;Carré et al, 2014), sclerosponge (Rosenheim et al, 2004), fish otoliths (Patterson et al, 1998), fossil teeth (Sharp & Cerling, 1998;Balasse et al, 2002), tree-rings (Evans & Shrag, 2004, speleothems (Ridley et al, 2015), and ice cores (Morgan & van Ommen, 1997). The pre-requisite to obtain seasonal variability is to have a continuous albeit not necessarily constant growth throughout the year.…”

Section: -Reconstructing Past Climate Seasonalitymentioning

confidence: 99%

Seasonality in long-term climate change

Carré¹,

Cheddadi²

2017

quaternaire

View full text Add to dashboard Cite

“…Laser-ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) can rapidly construct annual time series on moderate to fastgrowing samples and is being used extensively on marine carbonate organisms (e.g. Sinclair et al, 1998;Rosenheim et al, 2004). Treble et al (2003) took advantage of this productivity to stack of a number of parallel traverses to increase the robustness of time series.…”

Section: Trace Element Analysismentioning

confidence: 99%

Modification and preservation of environmental signals in speleothems

Fairchild

Smith

Baker

et al. 2006

Earth-Science Reviews

739

506

View full text Add to dashboard Cite

Speleothems are primarily studied in order to generate archives of climatic change and results have led to significant advances in identifying and dating major shifts in the climate system. However, the climatological meaning of many speleothem records cannot be interpreted unequivocally; this is particularly so for more subtle shifts and shorter time periods, but the use of multiple proxies and improving understanding of formation mechanisms offers a clear way forward.An explicit description of speleothem records as time series draws attention to the nature and importance of the signal filtering processes by which the weather, the seasons and longer-term climatic and other environmental fluctuations become encoded in speleothems. We distinguish five sources of variation that influence speleothem geochemistry: atmospheric, vegetation/soil, karstic aquifer, primary speleothem crystal growth and secondary alteration and give specific examples of their influence. The direct role of climate diminishes progressively through these five factors.We identify and review a number of processes identified in recent and current work that bear significantly on the conventional interpretation of speleothem records, for example: 1) speleothem geochemistry can vary seasonally and hence a research need is to establish the proportion of growth attributable to different seasons and whether this varies over time.2) whereas there has traditionally been a focus on monthly mean δ 18 O data of atmospheric moisture, current work emphasizes the importance of understanding the synoptic processes that lead to characteristic isotope signals, since changing relative abundance of different weather types might 1 Corresponding author, fax +44(0)1214145528, E-mail: i.j.fairchild@bham.ac.uk control their variation on the longer-term. 3) the ecosystem and soil zone overlying the cave fundamentally imprint the carbon and trace element signals and can show characteristic variations with time. 4) new modelling on aquifer plumbing allows quantification of the effects of aquifer mixing. 5) recent work has emphasized the importance and seasonal variability of CO 2 -degassing leading to calcite precipitation upflow of a depositional site on carbon isotope and trace element composition of speleothems. 6) Although much is known about the chemical partitioning between water and stalagmites, variability in relation to crystal growth mechanisms and kinetics is a research frontier. 7) Aragonite is susceptible to conversion to calcite with major loss of chemical information, but the controls on the rate of this process are obscure.Analytical factors are critical to generate high-resolution speleothem records. A variety of methods of trace element analysis are available, but standardization is a common problem with the most rapid methods. New stable isotope data on Irish stalagmite CC3 compares rapid laser-ablation techniques with the conventional analysis of micromilled powders and ion microprobe methods. A high degree of comparability between techniques ...

show abstract

High-resolution Sr/Ca records in sclerosponges calibrated to temperature in situ

Cited by 73 publications

References 18 publications

Strontium to calcium ratios in the marine gastropod Conus ermineus: Growth rate effects and temperature calibration

Strontium to calcium ratios in the marine gastropod Conus ermineus: Growth rate effects and temperature calibration

Seasonality in long-term climate change

Modification and preservation of environmental signals in speleothems

Contact Info

Product

Resources

About