Coccolith Sr/Ca as a new indicator of coccolithophorid calcification and growth rate
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چکیده
منابع مشابه
Calcium isotope fractionation during coccolith formation in Emiliania huxleyi: Independence of growth and calcification rate
[1] Recently, calcium isotope fractionation in the coccolithophore Emiliania huxleyi was shown to exhibit a significant temperature dependency. An important subsequent question in this context is whether the observed fractionation patterns are caused by temperature itself or related growth rate changes. In order to separate growth and calcification rate effects from direct temperature effects, ...
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Increasing atmospheric CO₂ concentrations are expected to impact pelagic ecosystem functioning in the near future by driving ocean warming and acidification. While numerous studies have investigated impacts of rising temperature and seawater acidification on planktonic organisms separately, little is presently known on their combined effects. To test for possible synergistic effects we exposed ...
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چکیده ندارد.
15 صفحه اولPotential and limitations of Sr/Ca ratios in coccolith carbonate: new perspectives from cultures and monospecific samples from sediments.
The Sr/Ca ratio of coccoliths was recently proposed as a potential indicator of past growth rates of coccolithophorids, marine algae, which play key roles in both the global carbonate and carbon cycles. We synthesize calibrations of this proxy through laboratory culture studies and analysis of monospecific coccolith assemblages from surface sediments. Cultures of coccolithophorids Helicosphaera...
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ژورنال
عنوان ژورنال: Geochemistry, Geophysics, Geosystems
سال: 2000
ISSN: 1525-2027
DOI: 10.1029/1999gc000015