Estimate of clay minerals amounts from XRD pattern modeling: The Arquant model

被引：27

作者：

Blanc, Philippe ^{[1
]}

Legendre, Olivier ^{[1
]}

Gaucher, Eric C. ^{[1
]}

机构：

[1] Bur Rech Geol & Minieres, F-45060 Orleans 2, France

来源：

PHYSICS AND CHEMISTRY OF THE EARTH | 2007年 / 32卷 / 1-7期

关键词：

clay minerals; XRD pattern; modeling; quantification; RAY-DIFFRACTION PATTERNS; ILLITE-SMECTITE; CHEMICAL HETEROGENEITY; TRANSFORMATION; DECOMPOSITION; CONVENIENT; INTENSITY; THICKNESS; LAYERS; ROCKS;

D O I：

10.1016/j.pce.2006.03.004

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

This work presents an XRD pattern model applied to the quantification of clay minerals in the <2 mu m fraction. The model is based on a linear combination of patterns previously simulated with specific codes. The modeling procedure is especially adapted to the oriented deposits performed from a suspension although it can also apply to the oriented pastes. The estimate of mica-like phases proportions allows to correct efficiently the illite amounts obtained. The model displays an interesting accuracy with an uncertainty of 8.6% at 59% of confidence. It is applied to the analysis of a natural sample, collected from a particular clay rock formation, related to the French nuclear waste storage project. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：135 / 144

页数：10

共 34 条

[11]

ELLISON S.L. R., 2000, QUANTIFYING UNCERTAI

[12]

ERGUN S, 1970, PHYS REV B, V131, P3371

[13] Investigation of smectite hydration properties by modeling experimental X-ray diffraction patterns: Part I. Montmorillonite hydration properties [J].

Ferrage, E ;

Lanson, B ;

Sakharov, BA ;

Drits, VA .

AMERICAN MINERALOGIST, 2005, 90 (8-9) :1358-1374

[14] ANDRA underground research laboratory:: interpretation of the mineralogical and geochemical data acquired in the Callovian-Oxfordian formation by investigative drilling [J].

Gaucher, E ;

Robelin, C ;

Matray, JM ;

Négral, G ;

Gros, Y ;

Heitz, JF ;

Vinsot, A ;

Rebours, H ;

Cassagnabère, A ;

Bouchet, A .

PHYSICS AND CHEMISTRY OF THE EARTH, 2004, 29 (01) :55-77

[15] Accurate quantitative analysis of clay and other minerals in sandstones by XRD: comparison of a Rietveld and a reference intensity ratio (RIR) method and the importance of sample preparation [J].

Hillier, S .

CLAY MINERALS, 2000, 35 (01) :291-302

[16]

JABOYEDOFF M, 2000, EARTH PLANET SCI, V331, P75

[17]

Jaboyedoff Michel, 2001, Bulletin de la Societe Vaudoise des Sciences Naturelles, V87, P305

[18] Illite crystallinity [J].

Kübler, B ;

Jaboyedoff, M .

COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE A-SCIENCES DE LA TERRE ET DES PLANETES, 2000, 331 (02) :75-89

[19] Decomposition of experimental x-ray diffraction patterns (profile fitting): A convenient way to study clay minerals [J].

Lanson, B .

CLAYS AND CLAY MINERALS, 1997, 45 (02) :132-146

[20] DECOMPOSITION OF X-RAY-DIFFRACTION PATTERNS - A CONVENIENT WAY TO DESCRIBE COMPLEX I/S DIAGENETIC EVOLUTION [J].

LANSON, B ;

VELDE, B .

CLAYS AND CLAY MINERALS, 1992, 40 (06) :629-643

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