People | Datasets | Literature | Institutes | Projects

[ report an error in this record ]basket (0): add | show Print this page

Salinity effects on the Mg/Ca and Sr/Ca in starfish skeletons and the echinoderm relevance for paleoenvironmental reconstructions
Borremans, C.; Hermans, J.; Baillon, S.; André, L.; Dubois, P. (2009). Salinity effects on the Mg/Ca and Sr/Ca in starfish skeletons and the echinoderm relevance for paleoenvironmental reconstructions. Geology (Boulder Colo.) 37(4): 351-354. dx.doi.org/10.1130/G25411A.1
In: Geology. Geological Society of America: Boulder. ISSN 0091-7613; e-ISSN 1943-2682
Peer reviewed article  

Available in  Authors 
    VLIZ: Open Repository 279460 [ OMA ]

Keywords
    Echinodermata [WoRMS]
    Marine/Coastal

Authors  Top 
  • Borremans, C.
  • Hermans, J.
  • Baillon, S.
  • André, L.
  • Dubois, P.

Abstract
    Skeletal Mg/Ca ratios of well-preserved fossil echinoderms have been used to reconstruct past Mg/Ca ratio in seawater up to the Phanerozoic, taking into account the known temperature effect on this ratio. This study investigates the effects of salinity and growth rate on Mg/Ca and Sr/Ca ratios in starfish calcite skeletons grown in experimental conditions. Both ratios are not related to growth rate: on the contrary, both are positively related to salinity. This effect induces an error on the reconstructed Mg/Ca ratio in seawater that may reach 46%. An intriguing inverse relation between skeletal Sr/Ca ratio and temperature was recorded. The salinity effects are presumably due to physiological regulation processes.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors