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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Carbonation of ophiolitic ultramafic rocks: Listvenite formation in the Late Cretaceous ophiolites of eastern Iran
Arman Boskabadi,Arman Boskabadi,Iain K. Pitcairn,Matthew I. Leybourne,Damon A. H. Teagle,Mark E. Cooper,Hossein Hadizadeh,Rasoul Nasiri Bezenjani,Reza Monazzami Bagherzadeh +8 more
TL;DR: In this article, the authors describe the transformation from harzburgite protolith to listvenite (quartz + magnesite/± dolomite + relict Cr-spinel) in the late Cretaceous mantle peridotite of the Birjand ophiolite of Iran.
Journal ArticleDOI
Geochemical and mineralogical variations in the upper Mercia Mudstone Group (Late Triassic), southwest Britain: correlation of outcrop sequences with borehole geophysical logs
TL;DR: In this paper, up to 150m of undifferentiated red mudstones of Norian and Rhaetian age (Late Triassic) were examined in coastal outcrops in Devon and Somerset, southwest Britain, and mineralogical and stable isotopic studies were carried out in order to identify any subtle changes in the succession.
Journal ArticleDOI
Unique authigenic mineral assemblages reveal different diagenetic histories in two neighbouring cold‐water coral mounds on Pen Duick Escarpment, Gulf of Cadiz
Hans Pirlet,Laura Mariana Wehrmann,Laura Mariana Wehrmann,Anneleen Foubert,Benjamin Brunner,Dominique Blamart,Lies De Mol,David Van Rooij,Jan Dewanckele,Veerle Cnudde,Rudy Swennen,Philippe Duyck,J.P. Henriet +12 more
TL;DR: In this paper, the authors combined sedimentological, petrographic and isotopic analyses of early diagenetic features in gravity cores from Alpha Mound and Beta Mound indicate that the contrast in mineral assemblages between these mounds is caused by differences in fluid and methane.
Journal ArticleDOI
Isotopic evidence for dolomite formation in soils
TL;DR: In this paper, the authors investigated the role of soil dolomites in the global carbon cycle and found that dolominite enrichment occurs beyond the limit of major biological activity, which coincides with the rooting depth of native perennial plants in semiarid soils.
Journal ArticleDOI
The Ranero Hydrothermal Dolomites (Albian, Karrantza Valley, Northwest Spain): Implications on Conceptual Dolomite Models
F.H. Nader,Mikel A. López-Horgue,Mumtaz M. Shah,Mumtaz M. Shah,Julie Dewit,Daniel Garcia,Rudy Swennen,Eneko Iriarte,Ph. Muchez,Bruno Caline +9 more
TL;DR: In this paper, the authors presented field characteristics, petrographic and geochemical signatures, as well as some petrophysical aspects of fault-related dolomite bodies in the Ranero area (Karrantza Valley, NW Spain) are presented.
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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