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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Journal ArticleDOI
Oxygen-isotope composition and temperature of fluids involved in deposition of Proterozoic sedex deposits, Sudbury Basin, Ontario
TL;DR: Sedex Cu-Pb-Zn deposits in the Sudbury Basin were deposited on the sea floor from fluids in which δ18O ǫ = 0.1 and at temperatures around 170 °C as discussed by the authors.
Journal ArticleDOI
Reworked marine sandstone concretions: a record of high-frequency shallow burial to exhumation cycles
Fernando García-García,R. Marfil,G.A. de Gea,A. Delgado,A. Kobstädt,A. Kobstädt,Ana Santos,Eduardo Mayoral +7 more
TL;DR: In this paper, a cycle of host sand deposition, early diagenetic concretion formation and concretion reworking is documented, with abundant calcite-dolomite cement-replacement textures originally hosted in shallow-marine sandstones, were reworked into Lower Cretaceous fluvio-deltaic conglomerates and shoreface sandstones (External Zones, Betic Cordillera).
Journal ArticleDOI
Iron(III)-Reduction in a Low-Organic-Carbon Brackish–Marine System
TL;DR: Siderite rhizocretions with a marine δ18O isotope signature in the Rutland Formation, Ketton, U.K. as mentioned in this paper seem to contradict this belief.
Journal ArticleDOI
Fault-controlled, bedding-parallel dolomite in the middle Jurassic Samana Suk Formation in Margalla Hill Ranges, Khanpur area (North Pakistan): petrography, geochemistry, and petrophysical characteristics
TL;DR: In this article, a porosity-permeability analysis of a bedding-parallel dolomite in the shallow marine platform carbonates of the Samana Suk Formation (middle Jurassic), southern Hazara basin, NW Pakistan is presented.
DissertationDOI
Calibration of microbial and geochemical signals related to dolomite formation by moderately halophilic aerobic bacteria
Abstract: ........................................................................................................... 3
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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