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Quantitative interpretation of mineralogical composition from X-ray and chemical data for the Pierre Shale
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In this article, the authors present an X-ray analysis of carbonate minerals, including sulfide, sulfate, and carbonate fraction data, and compare them with chemical analyses.Abstract:
-----------------------------------------Introduction.-------------------------------------X-ray analysis ________ --_--_--_----_________ ------Sample preparation and treatment _______________ _ Interpretation---------------------------------Whole rock data ___________________________ _ Carbonate minerals.--------_____ -----_ Disordered cristobalite _________________ _ Total clay minerals __ -------__________ _ Clay fraction data_------------__ ------__ _ Clay minerals present __ ----------------Comparison of X-ray peak sizes _________ _ Estimation of kaolinite and chlorite ______ _ Examples of interpretation __________________ _ ReproducibilitY------------------------------------Long-term reproducibility----__________________ _ Accuracy-comparison with chemical analyses _________ _ Sulfide, sulfate, and carbonate minerals ___________ _ Pageread more
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Evidence of montmorillonite/Fe-rich smectite transformation in the Morrón de Mateo bentonite deposit (Spain): Implications for the clayey barrier behaviour
TL;DR: In this article, the textural, mineralogical and crystallochemical features of the smectites located within the vicinity and away from a volcanic dome have been studied in order to elucidate the intrusion effects on these smectite.
Journal ArticleDOI
Coexistence of pyrophyllite, I-S, R1 and NH 4 + -rich illite in Silurian black shales (Sierra de Albarracín, NE Spain): metamorphic vs . hydrothermal origin
Blanca Bauluz,I. Subías +1 more
TL;DR: In this paper, a set of Silurian black shales from Sierra de Albarracin (NE Spain) corresponding to two different sections was studied to determine the relative influence of diagenesis, igneous activity, and regional tectonics on the clay-mineral genesis.
Journal ArticleDOI
Provenance and tectonic setting of Early Eocene Sohnari Member of Laki Formation from southern Indus Basin of Pakistan
TL;DR: In this paper, the authors carried out the bulk mineralogical and geochemical investigation of the Early Eocene Sohnari coal-bearing sedimentary rocks from the southern Indus Basin in Pakistan.
Paleoclimate Reconstruction during Mamu Formation (Cretaceous) Based on Clay Mineral Distributions
TL;DR: In this article, X-ray diffractographs were used to identify Kaolinite in the Mamu Formation and its variation style in this formation could be a marker of climate changes from wet to dry which is supported by the lithological changes.
Journal ArticleDOI
Diagenesis of mudrocks from the Kimmeridge Clay Formation of the Brae Area, UK North Sea
Harry Shaw,T.J. Primmer +1 more
TL;DR: In this article, the authors used X-ray diffraction (XRD) and backscatter electron microscopy techniques (BSEM) to examine the kimmeridge clay formation mudrocks from two boreholes in the Brae Area on the western edge of the Viking Graben, North Sea.
References
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Quantitative Estimations of Clay Minerals by Diffraction Methods
TL;DR: In this paper, the interpretation and significance of some of the clay mineral components of recent sediments and soil materials are discussed in detail and factors involved in analyzing these materials quantitatively are considered and a general procedure outlined.
OtherDOI
Minerals of the montmorillonite group, their origin and relation to soils and clays
Clarence S. Ross,S.B. Hendricks +1 more
TL;DR: In this paper, the authors present an introduction to the concept of REINFORCE, and propose a methodology. But, they do not discuss its application in this paper..
Journal Article
Clinoptilolite from Patagonia The relationship between clinoptilolite and heulandite
Brian Mason,L. B. Sand +1 more
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Preliminary investigation of the geologic setting and chemical composition of the Pierre Shale, Great Plains region
TL;DR: In this article, the authors present a plan of study for the distribution of Pierre shale and equivalent rocks and describe the geochemical properties of the Pierre shale, as well as its geochemical history.