Coexisting nanoscale phases of K-illite, NH4,K-illite and NH4-illite-smectite: an organic nitrogen contribution in the hydrothermal system of Harghita Bãi, East Carpathians, Romania – CORRIGENDUM
نویسندگان
چکیده
منابع مشابه
Role of microbes in the smectite-to-illite reaction.
Temperature, pressure, and time have been thought to control the smectite-to-illite (S-I) reaction, an important diagenetic process used for petroleum exploration. We demonstrated that microorganisms can promote the S-I reaction by dissolving smectite through reduction of structural Fe(III) at room temperature and 1 atmosphere within 14 days. This reaction typically requires conditions of 300 d...
متن کاملThe Nature of Illite
INTRODUCTION THE NAME illite was proposed by Grim, Bray and Bradley in 1937 for the mica-type mineral occurring in argillaceous sediments. It was specifically stated that "the term is not proposed as a specific mineral name, but as a general term for the clay mineral constituent of argillaceous sediments belonging to the mica group". Abundant research has shown that many soils, clays and shales...
متن کاملCompositional Variation in Component Layers in Natural Illite/smectite
-Published chemical data for suites of mixed-layer minerals from diagenetic sedimentary rocks, hydrothermally altered tufts, and a metasomatic bentonite bed indicate that the layer charge and composition of the different components of illite/smectite (I/S) differ from one geological environment to another. It appears that the composition of the elemental smectite and illite layers in the I/S is...
متن کاملMontmorillonite/illite Stability Diagrams
Chemical activity diagraoas , prepared to illustrate the properties expected if mixed-layer montmorillonite/illite is regarded as a solid solution, are compared to those derived from a treatment of these materials as a mixture of two phases. If the system is a solid solution, the coexisting aqueous solution should range from higher dissolved silica contents in the presence of kaolinite and a mo...
متن کاملA Proposed Phase Diagram for Illite, Expanding Chlorite, Corrensite and Illite-montmorillonite Mixed Layered Minerals
-New and published experimental data on hydrothermally treated (2-kbar water pressure, 300-400~ natural clay minerals is used to construct phase diagrams in composition and pressure-temperature space which define the phase relations of mixed layering solid solution in dioctahedral (illitemontmorillonite) and trioctahedral expanding chlorite and corrensite-like minerals. Three major relations ar...
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ژورنال
عنوان ژورنال: Clay Minerals
سال: 2019
ISSN: 0009-8558,1471-8030
DOI: 10.1180/clm.2019.16