The effect of polymorphism and magnesium substitution on oxygen isotope fractionation between calcium carbonate and water

Tarutani, Toshikazu; Clayton, Robert N.; Mayeda, T. K.

doi:10.1016/0016-7037(69)90108-2

Cited by 613 publications

(324 citation statements)

References 19 publications

Supporting

Mentioning

297

Contrasting

Unclassified

Order By: Relevance

“…Table 3 (also see Fig. 6 Tarutani et al (1969) and Kim & O'Neil (1997). Using this protocol we find that the majority of analyses give values for A 18 O eq (T mean ) which are close to zero (see Fig.…”

Section: A8mentioning

confidence: 69%

“…Since the bryozoans investigated in this study precipitate calcium carbonate skeletons composed of calcite with varying amounts of magnesium (Mg) substitution, we have chosen to examine the question of equilibrium oxygen isotope fractionation by comparison with the experimentally determined calcite-water fractionation relationship of Kim & O'Neil (1997). Because oxygen isotope fractionation in the calcitewater system is dependent on the degree of Mg substitution (Tarutani et al 1969), the relationship of Kim & O'Neil (1997) has been modified to take account of this effect. Gonfiantini et al 1995 for details).…”

Section: Equilibrium Isotope Fractionationmentioning

confidence: 99%

“…It is, therefore, essential to identify the skeletal carbonate mineralogy of individual bryozoan species to ensure that the correct oxygen and carbon isotope fractionation relationships are used in the interpretation of isotopic data. Because oxygen isotope fractionation between calcite and water is dependent on both precipitation temperature and mole% MgCO 3 content (Tarutani et al 1969), a quantitative determination of the Mg composition of those bryozoan species which precipitate magnesian calcite is also required to correct isotopic data for the effects of MgCO 3 substitution.…”

Section: X-ray Diffraction (Xrd) Analysismentioning

confidence: 99%

See 2 more Smart Citations

Stable isotope composition of modern bryozoan skeletal carbonate from the Otago Shelf, New Zealand

Crowley¹,

Taylor²

2000

New Zealand Journal of Marine and Freshwater Research

View full text Add to dashboard Cite

The oxygen (δ 18 O) and carbon (δ 13 C) isotope ratios of 10 species of living Bryozoa collected from the Otago Shelf, New Zealand were analysed to assess the extent to which isotopic equilibrium (relative to inorganic equilibrium isotope fractionation) is attained during the precipitation of skeletal calcium carbonate. The data reveal that whereas eight species of Bryozoa synthesise skeletal carbonate in apparent oxygen isotope equilibrium with respect to environmental conditions, two species (Celleporina grandis and Hippomonavella flexuosa) yield δ l8 O calcite values which indicate significant disequilibrium oxygen isotope fractionation during calcification. Sufficient data are available from one species (C. grandis) to demonstrate that disequilibrium is probably related to kinetic factors associated with diffusion-controlled transport of HCO 3 -to the site of calcite precipitation. Carbon isotope signatures indicate significant departures from inorganic isotope equilibrium in all but one bryozoan species (Hippomenella vellicata). Although greater uncertainties are associated with estimates of the isotopic composition of total dissolved Received 18 May 1999; accepted 20 December 1999 inorganic carbon (δ 13 C ΣDIC ), the data suggest that two factors-kinetic fractionation and incorporation of respiratory CO 2 -are important in controlling carbon isotope disequilibrium. Where bryozoan species exhibit evidence for disequilibrium in both oxygen and carbon isotope systems (C. grandis, H. flexuosa), it is likely that kinetic factors are primarily responsible for observed departures from carbon isotope equilibrium. In contrast, the probable explanation for those species which display evidence for carbon isotope disequilibrium only, is that skeletal carbonate is precipitated from a DIC pool modified by the incorporation of respiratory CO 2 . Differences between the carbon isotope composition of skeletal elements from the same species and co-existing species living in the same community suggests that significant variations may occur in the extent to which marine DIC and respiratory CO 2 are utilised during calcification. Additional studies of carbon pathways associated with calcification are required to assess the relative effects of kinetic, metabolic, and environmental factors on the carbon isotopic composition of bryozoan skeletal carbonate. M99028

show abstract

Section: A8mentioning

confidence: 69%

Section: Equilibrium Isotope Fractionationmentioning

confidence: 99%

Section: X-ray Diffraction (Xrd) Analysismentioning

confidence: 99%

See 1 more Smart Citation

Stable isotope composition of modern bryozoan skeletal carbonate from the Otago Shelf, New Zealand

Crowley¹,

Taylor²

2000

New Zealand Journal of Marine and Freshwater Research

View full text Add to dashboard Cite

show abstract

“…A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT Tarutani et al, 1969;Böhm et al, 2000) observed that calcite is depleted in 18 O relative to aragonite, while others studies suggested the opposite (e.g., Epstein et al, 1953;Zhou and Zheng, 2003). In a recent paper, Lécuyer et al (2012), analyzing mollusk species that secrete both aragonite and calcite layers in their shell, noted that biogenic aragonite is 18 O-enriched by 0.37‰ relative to coexisting biogenic calcite.…”

Section: Stack Correlationmentioning

confidence: 99%

Seasonality fluctuations recorded in fossil bivalves during the early Pleistocene: Implications for climate change

Crippa

Angiolini

Bottini

et al. 2016

Palaeogeography, Palaeoclimatology, Palaeoecology

View full text Add to dashboard Cite

Understanding the transformations of the climate system may help to predict and reduce the effects of global climate change. The geological record provides a unique archive that documents the long-term fluctuations of environmental variables, such as seasonal change. Here, we investigate how seasonal variation in seawater temperatures varied in the Mediterranean Sea during the early Pleistocene, approaching the Early-Middle Pleistocene Transition (EMPT) and the beginning of precession-driven Quaternary-style glacial-interglacial cycles. We performed whole-shell and sclerochemical stable isotope analyses (δ 18 O, δ 13 C) on bivalves, collected from

show abstract

“…4-B, two horizontal lines show the estimated isotopic value of calcite and aragonite in equilibrium with seawater at the temperature of 1.5°C which observed during the "Shinkai 6500" dive #179. Calculated values of calcite and aragonite show 3.11‰ and 3.71‰, respectively, using the oxygen isotopic fractionation by O'Neil et al (1969) for calcite and seawater and Tarutani et al (1969) for aragonite correction. Larger δ 18 O values than the equilibrium value shown in Fig.…”

Section: Implications For Isotopic Analysismentioning

confidence: 99%

The application of chemical staining to separate calcite and aragonite minerals for micro-scale isotopic analyses.

Kato

Wada

Fujioka³

2003

Geochem. J.

View full text Add to dashboard Cite

Staining is a useful laboratory tool for distinguishing specific carbonate minerals from a mixture of carbonates. Feigl's and Meigen's solutions are commonly used to distinguish aragonite from other carbonates. Feigl's solution stains the aragonite surface black and Meigen's stains purple, whereas the coexisting calcite remains nochang in color with either solutions. Both methods were applied to an authigenically precipitated carbonate chimney and a recrystallized metamorphic marble. Meigen's solution was favorable to stain fine and euhedral aragonites, but not effective for recrystallized aragonites. Feigl's solution was applicable to identify both types of aragonites.As a sample that demonstrates application of the Meigen's solution, isotopic analyses were carried out on aragonite and calcite separated from the seepage carbonate chimney collected from the Conical seamount of the Mariana forearc.

show abstract

The effect of polymorphism and magnesium substitution on oxygen isotope fractionation between calcium carbonate and water

Cited by 613 publications

References 19 publications

Stable isotope composition of modern bryozoan skeletal carbonate from the Otago Shelf, New Zealand

Stable isotope composition of modern bryozoan skeletal carbonate from the Otago Shelf, New Zealand

Seasonality fluctuations recorded in fossil bivalves during the early Pleistocene: Implications for climate change

The application of chemical staining to separate calcite and aragonite minerals for micro-scale isotopic analyses.

Contact Info

Product

Resources

About