Sr/Ca differences within and among three Tridacnidae species from the South China Sea: Implication for paleoclimate reconstruction

Yan, Hong; Shao, Da; Wang, Yuhong; Sun, Liguang

doi:10.1016/j.chemgeo.2014.10.011

Cited by 21 publications

(14 citation statements)

References 44 publications

(104 reference statements)

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“…Consistent offsets in the ranges of Mg/Ca ratios were expected to occur between study sites, because of locality-specific variations as discussed in other studies 22,44 . However, this observation was not universally true and variations among specimens coming from different localities were occasionally found to be smaller than those among specimens from the same locality.…”

Section: Resultssupporting

confidence: 74%

“…Ideally, future analyses of the crystal fabric will provide more detailed structural information as has been shown to be useful in studies with other mollusc species 49 . Ultimately, these offsets would change the slope and intercept of temperature equations, and potentially explain the varying temperature equations that were previously found in studies of other molluscs, such as Tridacnidae 44 , Mytilidae 50–52 , Pinna nobilis 53,54 , or Pecten maximus 55–57 .…”

Section: Resultsmentioning

confidence: 96%

“…While knowledge of the spatial heterogeneities of the Mg/Ca ratios and of the non SST related high Mg/Ca ratios within some specimens can help to develop an appropriate sampling strategy and to reconstruct SST more straightforwardly, caution is advised 44 . In fact, what constitutes the absolute Mg/Ca concentration of one increment might be difficult to define and any temperature equations using Mg/Ca might require additional geochemical information to be fully reliable.…”

Section: Resultsmentioning

confidence: 99%

“…This complicates our ability to find a consensus between specimens or studies and makes it challenging to replicate results. Overall, many shell records might not allow researchers to derive a consistent temperature equation despite their generally good individual correlation (R 2 > 0.80) 14,44 (in Suppl. Material), because ranges of Mg/Ca and the resulting SST depend on the sample location within one increment.…”

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Extensive elemental mapping unlocks Mg/Ca ratios as climate proxy in seasonal records of Mediterranean limpets

Hausmann

Prendergast

Lemonis

et al. 2019

Sci Rep

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Elemental analysis of biogeochemical archives is an established technique used to study climate in a range of applications, including ocean circulation, glacial/interglacial climates, and anthropogenic climate change. Data from mollusc archives are especially important because of their global abundance and sub-annual resolution. Despite this potential, they are underrepresented among palaeoclimate studies, due to enigmatic physiological influences skewing the elemental record. Understanding the patterns behind these influences will improve data interpretation and lead to the development of new climate proxies. Here, we show for the first time that extensive spatial mapping of multiple mollusc specimens using Laser Induced Breakdown Spectroscopy (LIBS) across a wider region can resolve enigmatic patterns within the elemental record caused by physiological influences. 2D elemental (Mg/Ca) maps of whole limpet shells (Patella caerulea) from across the Mediterranean revealed patterns of variability within individual mollusc records as well as within isochronous parts of specimens. By registering and quantifying these patterns, we established previously uninterpretable correlations with temperature (R 2 > 0.8, p < 0.01). This outcome redefines the possibilities of accessing sub-annual climate proxies and presents the means to assess annual temperature ranges using oxygen isotope analysis requiring only 2 samples per shell.

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Section: Resultssupporting

confidence: 74%

Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Extensive elemental mapping unlocks Mg/Ca ratios as climate proxy in seasonal records of Mediterranean limpets

Hausmann

Prendergast

Lemonis

et al. 2019

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The Sr/Ca ratio, which has been extensively utilized as paleothermometers in corals (Beck et al, 1992;McCulloch et al, 1994McCulloch et al, , 1996Alibert and McCulloch, 1997), has also been investigated recently in Tridacna specimens (Elliot et al, 2009;Batenburg et al, 2011;Sano et al, 2012;Yan et al, 2013Yan et al, , 2014a. In our previous study, the highresolution Sr/Ca ratios of modern T. gigas specimen from the South China Sea were determined by ICP-OES; the Sr/Ca profiles had clear annual cycles, they were significantly correlated with the local SST, and they could be used as SST proxies (Yan et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Seawater Temperature Seasonality in the South China Sea During the Late Holocene Derived From High-Resolution Sr/Ca Ratios of Tridacna Gigas

et al. 2015

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Temperature seasonality, the difference between summer and winter temperature, has significant influences on global terrestrial and marine ecosystems. However, most of proxy-based climate records are of limited temporal resolution and thus insufficient to quantify the past temperature seasonality. In this study, high-resolution Sr/Ca ratios of modern (live-caught) and fossil (dead-collected) Tridacna gigas shells from the South China Sea (SCS) were used to reconstruct the seawater temperature seasonality during the late Holocene. The averaged seawater temperature seasonality around 2165 ± 75 BC (4.46 ± 1.41°C, derived from the data of 18 yr) were similar to the seasonality of recent decade (4.41 ± 0.82°C during AD 1994-2005), but the temperature seasonality around AD 50 ± 40 (3.69 ± 1.37°C, derived from the data of 48 yr) and AD 990 ± 40 (3.64 ± 0.87°C, derived from the data of 11 yr) was significantly lower than that during AD 1994-2005. The reduced seasonality around AD 990 ± 40 was attributable to the unusually warm winter during the medieval times, probably caused by the weakening of East Asian Winter Monsoon. Our study highlighted the potential of T. gigas shells in providing high-resolution seasonality climate information during the late Holocene.

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Oxygen isotope temperature calibrations for modern Tridacna shells in western Pacific

et al. 2022

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Sr/Ca differences within and among three Tridacnidae species from the South China Sea: Implication for paleoclimate reconstruction

Cited by 21 publications

References 44 publications

Extensive elemental mapping unlocks Mg/Ca ratios as climate proxy in seasonal records of Mediterranean limpets

Extensive elemental mapping unlocks Mg/Ca ratios as climate proxy in seasonal records of Mediterranean limpets

Seawater Temperature Seasonality in the South China Sea During the Late Holocene Derived From High-Resolution Sr/Ca Ratios of Tridacna Gigas

Oxygen isotope temperature calibrations for modern Tridacna shells in western Pacific

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