Oxygen Isotope Fractionation in Divalent Metal Carbonates

O’Neil, James R.; Clayton, Robert N.; Mayeda, T. K.

doi:10.1063/1.1671982

Cited by 2,267 publications

(960 citation statements)

References 27 publications

Supporting

Mentioning

910

Contrasting

Unclassified

Order By: Relevance

“…29 This change in H-isotopic composition is in good agreement with the expected dD shift, on the basis of the observed d 18 O change (Fig. 2(a)), assuming that the variation in water composition following the Meteoric Water Line relationship 35 36,37 The resulting change in these opposing processes is about 0.35%/8C. Furthermore, as the sampled sections encompass several years, the observed changes in 18 O may reflect variations in the relative amounts of winter and summer precipitation.…”

Section: Resultssupporting

confidence: 82%

Bronze Age volcanic event recorded in stalagmites by combined isotope and trace element studies

Siklósy

Demény

Vennemann

et al. 2009

Rapid Comm Mass Spectrometry

View full text Add to dashboard Cite

Stable isotope analyses of speleothems (carbonate deposits formed in caves) have been widely used to reconstruct paleoenvironmental conditions. Recent improvements in geochemical techniques have enabled us to analyze climate‐influenced deposits at high temporal resolution so that hitherto unrecognized environmental conditions may be identified. Stable H, C and O isotope analyses on carbonate and inclusion water have been combined with multicollector inductively coupled plasma mass spectrometry (MC‐ICP‐MS) age dating and laser‐ablation ICP‐MS trace element analyses on a stalagmite from southern Hungary. The study reveals significant changes in chemical and isotopic compositions of the speleothem between approx. 3800 and 3500 years BP (‘Before Present’) indicating coupled changes in the temperature and precipitation regime under which the speleothem formed. Stable isotopic and trace element correlations within this time period correlate with similar studies of stalagmites of comparable age from the Alpine‐Mediterranean region. Our studies suggest that traces of deposition of volcanic dust, possibly related to the Thera eruption of Santorini (Greece) ca. 1650 BC (∼3650 BP), and environmental changes can be detected at a distance of several thousand kilometers. Copyright © 2009 John Wiley & Sons, Ltd.

show abstract

Section: Resultssupporting

confidence: 82%

Bronze Age volcanic event recorded in stalagmites by combined isotope and trace element studies

Siklósy

Demény

Vennemann

et al. 2009

Rapid Comm Mass Spectrometry

View full text Add to dashboard Cite

show abstract

“…Under conditions of equilibrium the oxygen isotope composition of the calcite is determined by temperature and the water oxygen isotope composition (O'Neil et al, 1969). The main problem is that many equations have been proposed for the calcite-water oxygen isotope fractionation (O'Neil et al, 1969;Friedman and O'Neil, 1977;Kim and O'Neil, 1997;Chacko and Deines, 2008;Coplen, 2007;Horita and Clayton, 2007;Dietzel et al, 2009;Demény et al, 2010;Zheng, 2011;Day and Henderson, 2011;Tremaine et al, 2011;Gabitov et al, 2012); these, however, provided different fractionation values for the same temperature. Two equations were selected as the Devils Hole location fulfils most of the theoretical requirements of equilibrium calcite precipitation (slow precipitation rate, stable environment, Coplen, 2007), while the equation established by Tremaine et al (2011) is based on a collection of natural cave deposit data selected by avoiding kinetic fractionation bias.…”

Section: Suitability Assessment Of the Bar-ii Stalagmitementioning

confidence: 99%

Stable isotope compositions of speleothems from the last interglacial – Spatial patterns of climate fluctuations in Europe

Demény

Kern

Czuppon

et al. 2017

Quaternary Science Reviews

View full text Add to dashboard Cite

Highlights Stable isotope compositions of a last interglacial (LIG) stalagmite, Central Europe  A sequence of climate change events during the LIG for European speleothems  Hydrogen isotope data of inclusion water reveal a major event at about 125 ± 2 ka  Temperature and winter precipitation changes around the Mediterranean at 125 ± 2 ka ABSTRACT Studies on the last interglacial (LIG) can provide information on how our environment behaved in a period of slightly higher global temperatures at about 125 ± 4 ka, even if it is not the best analogue for the Holocene. The available LIG climate proxy records are usually better preserved and can be studied at a higher resolution than those of the preceding interglacials, allowing detailed comparisons. This paper presents complex stable hydrogen, carbon and oxygen isotope records obtained for carbonate (δ 13 Baradla data indicate enhanced aridity and seasonality for a part of GS26, with the relative dominance of summer precipitation and Mediterranean moisture contribution. Following the GS26 event, the effect of long-term global cooling becomes dominant in the Baradla isotope records and leads to glacial inception at about 109 ka.

show abstract

“…Uncertainty is better than ± 0.05 and ± 0.1 for δ 13 C and δ 18 O, respectively. The isotopic composition of the parent fluid was calculated using the equations published by O'Neil et al (1969) and Deines et al (1974).…”

Section: Methodsmentioning

confidence: 99%

Genesis of Syntectonic Hydrothermal Veins in the Igneous Rock of Teschenite Association (Outer Western Carpathians, Czech Republic): Growth Mechanism and Origin of Fluids

Urubek¹,

Dolníček²,

Kropáč³

2015

Geologica Carpathica

View full text Add to dashboard Cite

Hydrothermal mineralization hosted by the Lower Cretaceous igneous rock of the teschenite association at Jasenice (Silesian Unit, Flysch Belt, Outer Western Carpathians) occurs in two morphological types -irregular vein filled by granular calcite and regular composite vein formed by both fibrous and granular calcite and minor chlorite, quartz, and pyrite. Crosscutting evidence indicates that the granular veins are younger than the composite vein. The composite vein was formed by two mechanisms at different times. The arrangement of solid inclusions in the marginal fibrous zone suggests an episodic growth by the crack-seal mechanism during syntectonic deformation which was at least partially driven by tectonic suction pump during some stages of the Alpine Orogeny. Both the central part of the composite vein and monomineral veins developed in a brittle regime. In these cases, the textures of vein suggest the flow of fluids along an open fracture. The parent fluids of both types of vein are characterized by low temperatures (Th =66-163 °C), low salinities (0.4 to 3.4 wt. % NaCl eq.), low content of strong REE-complexing ligands, and δ 18 O and δ 13 C ranges of + 0.2/+12.5 ‰ SMOW and -11.8/-14.1 ‰ PDB, respectively. The parent fluids are interpreted as the results of mixing of residual seawater and diagenetic waters produced by dewatering of clay minerals in the associated flysch sediments. The flow of fluids was controlled by tectonic deformation of the host rock.

show abstract

Oxygen Isotope Fractionation in Divalent Metal Carbonates

Cited by 2,267 publications

References 27 publications

Bronze Age volcanic event recorded in stalagmites by combined isotope and trace element studies

Bronze Age volcanic event recorded in stalagmites by combined isotope and trace element studies

Stable isotope compositions of speleothems from the last interglacial – Spatial patterns of climate fluctuations in Europe

Genesis of Syntectonic Hydrothermal Veins in the Igneous Rock of Teschenite Association (Outer Western Carpathians, Czech Republic): Growth Mechanism and Origin of Fluids

Contact Info

Product

Resources

About