Hydrothermal Reactivity of K-smectite at 300°C and 100 bar: Dissolution-Crystallization Process and Non-Expandable Dehydrated Smectite Formation
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چکیده
منابع مشابه
Hydrothermal Reactivity of Mixed-layer Kaolinite/smectite: Experimental Transformation of High-charge to Low-charge Smectite
-A mixed-layer kaolinite/smectite (K/S) containing trace amounts of quartz, discrete kaolinite, goethite-hematite, and calcite was hydrothermally reacted with deionized water at 150", 200", and 250"C for 1 to 12 months. The starting K/S contained 50% smectite consisting of 15~ low-charge and 350 high-charge layers. The X-ray powder diffraction and chemical analyses of the reacted products indic...
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Effects of radiation-induced amorphization of smectite were investigated using artificial irradiation. Beams of 925 MeV Xenon ions with radiation dose reaching 73 MGy were used to simulate the effects generated by alpha recoil nuclei or fission products in the context of high level nuclear waste repository. Amorphization was controlled by X-ray diffraction, transmission electron microscopy, and...
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This study aims to contribute to a better understanding of the nature and evolution mechanism of interstratifi ed clay minerals. We examined the <2 μm or <0.2 μm size fraction of interstratifi ed kaolinite-smectite (K-S) formed by hydrothermal and hydrogenic alteration of volcanogenic material from a Tortonian clay deposit (Almería, Spain), a weathered Eocene volcanic ash (Yucatan, Mexico), and...
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Running Title: 1-D HRTEM structure images of hydrothermal I-S mixed-layer minerals The person to whom correspondence and page proofs should be sent: Takashi Murakami Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, JAPAN E-mail: [email protected] ha l-0 01 07 03 2, v er si on 1 5 D ec 2 00 7 Author manuscript, published in "Clays and Clay Minerals 5...
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ژورنال
عنوان ژورنال: Clay Minerals
سال: 1999
ISSN: 0009-8558
DOI: 10.1180/claymin.1999.034.2.07