Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
Strong kinetic effects on Sr/Ca ratios in the calcitic bivalve Pecten maximus
Lorrain, A.; Gillikin, D.P.; Paulet, Y.-M.; Chauvaud, L.; Le Mercier, A.; Navez, J.; André, L. (2005). Strong kinetic effects on Sr/Ca ratios in the calcitic bivalve Pecten maximus. Geology (Boulder Colo.) 33(12): 965-968. http://dx.doi.org/10.1130/G22048.1
In: Geology. Geological Society of America: Boulder. ISSN 0091-7613; e-ISSN 1943-2682, meer
|  |
| Trefwoord |
|
| Author keywords |
mollusc; calcite; strontium; magnesium; daily growth; temperature proxy |
| Project | Top | Auteurs |
- Validation of alternative marine calcareous skeletons as recorders of global climate change, meer
|
| Auteurs | | Top |
- Lorrain, A.
- Gillikin, D.P., meer
- Paulet, Y.-M.
- Chauvaud, L.
|
- Le Mercier, A.
- Navez, J., meer
- André, L., meer
|
|
| Abstract |
Although Sr/Ca ratios in abiogenic calcite are strongly controlled by precipitation rates, such a kinetic effect has never been demonstrated in calcitic bivalve shells. Therefore, we report Sr/Ca ratios together with daily growth rates in the calcitic shells of four individuals of the bivalve Pecten maximus (age class I). Ratios of Sr/Ca were found to be variable among individuals that grew at the same location, illustrating that vital effects dominate over environmental controls. Although daily growth rate was correlated with shell Sr/Ca ratios, it explained only half of the Sr/Ca variations. However, daily shell surface area increment, an estimation of the total quantity of carbonate precipitated for a given time, explained 74% of the Sr/Ca variability in the shells of P. maximus. This proves, for the first time in a calcitic bivalve, that shell Sr/Ca partitioning is mainly controlled by kinetic effects. The Sr/Ca ratio should therefore be tested as a potential proxy of calcification rate in modern or fossil calcitic biocarbonates. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
