18O and 13C in the shells of freshwater molluscs and their environments

Fritz, P.; Popławski, Szymon

doi:10.1016/0012-821x(74)90012-0

Cited by 195 publications

(113 citation statements)

References 15 publications

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“…(1983) suggested that such a correlation between 8 13 C and 8' 8 O can represent variations in the residence time of water in the lake. Furthermore, FRITZ and POPLAWSKI (1974) noted that the 8 18 O and 8 13 C of lake waters and DIC, respectively, from samples collected at different times of the year in a number of lakes, show this same correlation; the range in isotopic compositions is even larger than that observed in carbonates in this study.…”

supporting

confidence: 78%

Oxygen and Carbon Isotope Trends in a Late Glacial-Holocene Pollen Site in Wyoming, U.S.A.

Gennett¹,

Grossman²

2007

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Stable isotope studies of North American Late Glacial and Holocene lake sediments are few. Previous studies of pollen sites in Indiana, South Dakota, and the Great Lakes area show low δ18O values during deglaciation, rising to a Hypsithermal peak, and provide paleoenvironmental reconstructions similar to those obtained from pollen studies. Blacktail Pond, located in Douglas fir steppe in northern Yellowstone National Park, Wyoming, is one of the highest elevation lakes (2018 m) yet studied with both pollen and stable isotopes. Analyses of marls yield low oxygen and carbon isotope values at the base of the core probably due to meltwater influx at 12,500 to 14,000 BP. Tundra vegetation persisted for about an additional 1,500 years following the end of meltwater input. Later, more enriched isotope values fluctuate due to the high sensitivity of Blacktail Pond to evaporation and CO2 exchange because of its shallow depth. These processes result in a covariance between δ13C and δ18O related to the residence time of water in the pond; they exert a primary control on the isotopic composition of the Holocene marl. It may be possible to filter the data for residence time effects and extract additional paleoenvironmental information based on the offsets of isotopic data from the δ13C-δ18O trend for a particular pollen zone.Les études sur les isotopes stables présents dans les sédiments lacustres tardiglaciaires et holocènes de l'Amérique du Nord sont peu nombreuses. Les quelques études antérieures dans des sites polliniques de l'Indiana, du South Dakota et de la région des Grands Lacs ont démontré que les valeurs de δ18O, faibles pendant la déglaciation, s'élevaient jusqu'à l'apogée au cours de l'hypsithermal. Ces études ont de plus permis d'effectuer des reconstitutions paléoenvironnementales semblables à celles que permettaient les études palynologiques. Le Blacktail Pond, situé en milieu de steppe arborée, au nord du parc national Yellowstone, au Wyoming, est un des lacs les plus élevés (2018 m) où l'on a effectué des études palynologiques et isotopiques. À la base des carottes, l'analyse des marnes fait ressortir de faibles valeurs des isotopes de l'oxygène et du carbone, probablement en raison d'une forte alimentation en eaux de fonte de 12 500 à 14 000 BP. La végétation de toundra a subsisté pendant les 1500 années qui ont suivi l'arrêt de la circulation des eaux de fonte. Plus tard, les valeurs plus élevées des isotopes ont varié à cause de la forte evaporation et des échanges de CO2 qui affectaient plus particulièrement le Blacktail Pond, un lac de faible profondeur. Ces processus ont entraîné une covariance du δ13C et du δ18O reliée à la durée d'emmagasinement de l'eau dans le lac et ont exercé un contrôle direct sur la composition isotopique des marnes holocènes. On peut arriver à raffiner les données afin de tenir compte des conséquences de la durée d'emmagasinement de l'eau et de tirer des renseignements supplémentaires sur les paléoenvironnements d'une zone pollinique particulière à partir des écarts par rappor...

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supporting

confidence: 78%

Oxygen and Carbon Isotope Trends in a Late Glacial-Holocene Pollen Site in Wyoming, U.S.A.

Gennett¹,

Grossman²

2007

gpq

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“…Some studies have argued that δ 13 C ar is controlled by the δ 13 C DIC in water, (e.g., Mook, 1971;Fritz and Poplawski, 1974), many others have suggested that both kinetic and metabolic effects play an important role in determing δ 13 C ar (Keith et al, 1964;Tanaka et al, 1986;Klein et al, 1996;McConnaughey et al, 1997;Dettman et al, 1999;Lorrain et al, 2004;Gillikin et al, 2006Gillikin et al, , 2007Gillikin et al, , 2009. Kinetic isotope effects refer to the simultaneous depletion of 18 O and 13 C associated with fractionation during CO 2 hydration and hydroxylation (McConnaughey, 1989).…”

Section: Shell δmentioning

confidence: 99%

“…Shell δ 13 C values have been attributed to a number of controls in various studies. Some have argued that δ 13 C ar is governed by the stable carbon isotopic composition of dissolved inorganic carbon (δ 13 C DIC ) and therefore records changes in environmental variables such as pH, temperature, and salinity (e.g., Keith et al, 1964;Mook, 1971;Fritz and Poplawski, 1974;Gillikin et al, 2006). On the other hand, shell carbonates were often found not to reflect the predicted equilibrium fractionation, being in general less enriched than predicted in 13 C (e.g., Klein et al, 1996;McConnaughey et al, 1997;McConnaughey, 2003;Kaandorp et al, 2003 and many others).…”

mentioning

confidence: 99%

Stable isotope composition of the modern freshwater bivalve Corbicula fluminea

et al. 2009

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Bivalve shells have been used in a number of paleoclimate and paleoenvironment studies. In order to investigate oxygen and carbon isotope fractionation between bivalve aragonite and host water, a one year monitoring experiment was conducted. Cooler temperatures seem to cause cessation of growth, suggesting that a threshold temperature may control the onset and cessation of growth. Shell δ 13 C are more negative than predicted δ 13 C values, and we observed that all the specimens showed a trend of lower δ 13 C values with increasing age, this suggests that the incorporation of metabolic carbon is the cause of the negative offset in shell δ 13 C. The variable offset from equilibrium δ 13 C values precludes the direct use of Corbicula fluminea shell in the study of the δ 13 C DIC in ancient bodies of water.

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“…A record of the stable-isotopic evolution of lake water can be obtained by analyzing one or more of the carbonate solid phases precipitated from lake water (Stuiver, 1968;and Fritz and Poplawski, 1974). About 365 samples of calcite ostracode valves were collected from cores WLC84-4, 5, and 8 by Richard Forester of the U.S. Geological Survey.…”

Section: Oxygen-18 Content Of Ostracode Valvesmentioning

confidence: 99%

Preliminary paleolimnologic data for the Walker Lake subbasin, California and Nevada

Benson¹

1988

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18O and 13C in the shells of freshwater molluscs and their environments

Cited by 195 publications

References 15 publications

Oxygen and Carbon Isotope Trends in a Late Glacial-Holocene Pollen Site in Wyoming, U.S.A.

Oxygen and Carbon Isotope Trends in a Late Glacial-Holocene Pollen Site in Wyoming, U.S.A.

Stable isotope composition of the modern freshwater bivalve Corbicula fluminea

Preliminary paleolimnologic data for the Walker Lake subbasin, California and Nevada

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