Journal ArticleDOI
An isotopic study of siderites, dolomites and ankerites at high temperatures☆
J Rosenbaum,S.M.F Sheppard +1 more
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TLDR
In this paper, an empirically derived relationship between the chemical composition of a carbonate in the CaCO3-(Ca, Mg)(CO3)2-FeCO3 system and the function 103 In α at 100°C is 103 ∆ α = 8.94XCaCO3 + 9.29XMgCO3+ 8.77XFeCo3 where Xi is the mole percent of component i in the carbonate.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1986-06-01. It has received 768 citations till now. The article focuses on the topics: Carbonate & Ankerite.read more
Citations
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The giant Vergenoeg fluorite deposit in a magnetite–fluorite–fayalite REE pipe: a hydrothermally-altered carbonatite-related pegmatoid?
TL;DR: The world-class Paleoproterozoic Vergenoeg fluorite deposit in South Africa is hosted in a breccia pipe comprising units with varying proportions of pegmatoidal fayalite, magnetite, fluorite and siderite.
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Authigenic dolomites in the Eocene–Oligocene organic carbon-rich shales from the Polish Outer Carpathians: Evidence of past gas production and possible gas hydrate formation in the Silesian basin
TL;DR: In this article, the Eocene-Oligocene dolomite concretions and beds from the Grybow and Dukla units of the Polish Outer Carpathians were studied.
Journal ArticleDOI
The influence of climate on early and burial diagenesis of Triassic and Jurassic sandstones from the Norwegian–Danish Basin
Rikke Weibel,Mette Olivarius,Mette Olivarius,Claus Kjøller,Lars Kristensen,Morten Leth Hjuler,Henrik Friis,Per Kent Pedersen,Adrian J. Boyce,M. S. Andersen,Elina Kamla,Lars Ole Boldreel,Anders Mathiesen,Lars Henrik Nielsen +13 more
TL;DR: In this article, climate changes preserved in sandstones are documented by comparing the sediment composition and early diagenetic changes of sandstones deposited during arid to semi-arid conditions, the Skagerrak Formation, with sandstones of the Gassum Formation deposited in a humid well-vegetated environment.
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Blackriveran (lower Mohawkian, Upper Ordovician) lithostratigraphy, rhythmicity, and paleogeography: Ottawa Embayment, eastern Ontario, Canada
O. Salad Hersi,George R. Dix +1 more
TL;DR: The Ottawa Embayment contains erosional remnants of a shallow-water carbonate platform (St. Lawrence Platform) of Late Ordovician (Caradocian) age as discussed by the authors.
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Climate variability in the Stephanian B based on environmental record of the Mšec Lake deposits (Kladno–Rakovník Basin, Czech Republic)
Richard Lojka,Jana Drábková,Jaroslav Zajíc,Ivana Sýkorová,Juraj Franců,Anna Bláhová,Tomáš Matys Grygar +6 more
TL;DR: In the Stephanian B, a large freshwater lake was formed in the continental basins of the west, central and northeast Bohemia, Czech Republic with a total area estimated at 5000-10,000 km 2 and a lifetime of 50 to 500 ky.
References
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Journal ArticleDOI
Isotopic standards for carbon and oxygen and correction factors for mass-spectrometric analysis of carbon dioxide
TL;DR: In this paper, Niee's and Solenhofen standards were compared to the Chicago PDB standard for carbon and oxygen isotope ratios, and the correction factors for instrumental effects and for the nature of the mass spectra were derived.
Journal ArticleDOI
On the Isotopic Chemistry of Carbonates and a Paleotemperature Scale
TL;DR: In this paper, the temperature variation of the fractionation of oxygen in exchange reactions between dissolved carbonate and water and between calcite and water was calculated on theoretical grounds, and checked experimentally.
Journal ArticleDOI
The use of bromine pentafluoride in the extraction of oxygen from oxides and silicates for isotopic analysis
TL;DR: In this paper, a technique was developed in which bromine pentafluoride was used as a reagent for quantitative liberation of oxygen from oxides and silicates, and the results of isotopic analyses were compared with measurements made in other laboratories by other procedures.
Journal ArticleDOI
Measurement of O18O16 ratios of total oxygen of carbonates
TL;DR: The commonly used phosphoric acid procedure for the determination of oxygen isotope abundances in carbonates involves a large kinetic isotope effect as mentioned in this paper, which leads to an overestimate of the dolomite-calcite oxygon isotope fractionation by 0.8 per mil.
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