PHYLLOSILICATES: ASSOCIATED FIBROUS MINERALS A. M. Langer R. P. Nolan Environmental Sciences Laboratory Brooklyn College Avenue H and Bedford Avenue Brooklyn, NY 11210 F. D. Pooley Division of Mining and Minerals Engineering School of ...
Considerable progress in understanding how inhaled minerals cause disease in man has been made in the past two decades. This is mostly due to the great amount of human, animal and cell multidisciplinary studies carried out on silica, asbestos and asbestiforms all around the world. Two previous NATO Workshops on "In Vitro Effects of Mineral Dusts on Cells", have been published in the NATO ASI Series (1985 and 1989). The present NATO-INSERM workshop has focused specifically on a group of silicates, named phyllosilicates because of their sheet structure, of which health related effects have been poorly and sporadically investigated. These silicates are presently largely used as filling materials (kaolin, talc, chlorite), insulating materials (vermiculite, micas), adsorbants (sepiolite, attapulgite) and in many other industrial applications. The estimated annual world production is presently 5.5 million tons of talc (1.8 million for Europe) and only in the United Kingdom about 3.5 million tons of kaolin.
Evolution of Phyllosilicates Through Diagenesis and Low grade Metamorphism in a Prograde Sequence of Pelitic Rocks from Southern New Zealand
Release on 1996 | by Gejing Li
CHAPTER V RELATIONS AMONG STILPNOMELANE AND OTHER PHYLLOSILICATES IN A PROGRADE SEQUENCE OF METAPELITES FROM SOUTHEAST OTAGO, NEW ZEALAND Abstract - XRD, SEM, and TEM/AEM methods were utilized to study phyllosilicates in a prograde ...
The Origin of Clay Minerals in Soils and Weathered Rocks
Release on 2008-07-18 | by Bruce B. Velde
Bailey (1980) restricted the definition of clay to fine-grained phyllosilicates. Guggenheim and Martin (1995) considered that clays are all the finegrained mineral components that give plasticity after hydration to rocks or materials ...
Of huge relevance in a number of fields, this is a survey of the different processes of soil clay mineral formation and the consequences of these processes concerning the soil ecosystem, especially plant and mineral. Two independent systems form soil materials. The first is the interaction of rocks and water, unstable minerals adjusting to surface conditions. The second is the interaction of the biosphere with clays in the upper parts of alteration profiles.
From Habitability to Life on Mars
Release on 2018-07-10 | by Nathalie A. Cabrol
CHAPTER 3 Remote Detection of Phyllosilicates on Mars and Implications for Climate and Habitability Janice L. Bishop Contents 3.1 Overview 37 3.2 Presence of Phyllosilicates and Poorly Crystalline Aluminosilicates on Mars 38 3.3 Remote ...
From Habitability to Life on Mars explores the current state of knowledge and questions on the past habitability of Mars and the role that rapid environmental changes may have played in the ability of prebiotic chemistry to transition to life. It investigates the role that such changes may have played in the preservation of biosignatures in the geological record and what this means for exploration strategies. Throughout the book, the authors show how the investigation of terrestrial analogs to early Martian habitats under various climates and environmental extremes provide critical clues to understand where, what and how to search for biosignatures on Mars. The authors present an introduction to the newest developments and state-of-the-art remote and in situ detection strategies and technologies that are being currently developed to support the upcoming ExoMars and Mars 2020 missions. They show how the current orbital and ground exploration is guiding the selection for future landing sites. Finally, the book concludes by discussing the critical question of the implications and ethics of finding life on Mars. Edited by the lead on a NASA project that searches for habitability and life on Mars leading to the Mars 2020 mission Presents the evidence, questions and answers we have today (including a summary of the current state of knowledge in advance of the ESA ExoMars and NASA Mars 2020 missions) Includes contributions from authors directly involved in past, current and upcoming Mars missions Provides key information as to how Mars rovers, such as ExoMars and Mars 2020, will address the search for life on Mars with their instrumentation
Interacting Processes in Soil Science
Release on 2020-10-26 | by R.J. Wagenet
Effects of Phyllosilicates on Microbial Activity III. Phyllosilicate Dissolution by Microorganisms A. Micas B. Other 2:1, 1:1, and 2:2 Phyllosilicates IV. Phase Transformations and Neoformation V. Change in Phyllosilicate Microstructure ...
Interacting Processes in Soil Science focuses on coupled processes in soil. Topics covered in this important volume include the effects of inorganic salts upon water flow, modeling of sorption, transport and transformation of organic solutes, and the effects of microorganisms on silicate clay minerals. The book presents studies and approaches that can be extended and complemented by innovative work in the future. Interacting Processes in Soil Science will be an essential reference for all researchers and students in soil science, soil and water engineering, civil and environmental engineering, earth sciences, and hydrology.
The Atmosphere and Climate of Mars
Release on 2017-06-29 | by Robert M. Haberle
4 Phyllosilicates are placed into mineral groups based on the layering. For example, the 1: 1 group, exemplified by kaolinite (Al2Si2O5(OH)4), comprises a layer of silicate tetrahedra linked by hydrogen bonds to OH groups on an ...
Humanity has long been fascinated by the planet Mars. Was its climate ever conducive to life? What is the atmosphere like today and why did it change so dramatically over time? Eleven spacecraft have successfully flown to Mars since the Viking mission of the 1970s and early 1980s. These orbiters, landers and rovers have generated vast amounts of data that now span a Martian decade (roughly eighteen years). This new volume brings together the many new ideas about the atmosphere and climate system that have emerged, including the complex interplay of the volatile and dust cycles, the atmosphere-surface interactions that connect them over time, and the diversity of the planet's environment and its complex history. Including tutorials and explanations of complicated ideas, students, researchers and non-specialists alike are able to use this resource to gain a thorough and up-to-date understanding of this most Earth-like of planetary neighbours.
Release on 2018-12-17 | by James J. Papike
Fe Fe * Coarse phyllosilicates * Fine phyllosilicates * Average matrix composition Serpentine solid sol 'k ... " \ 13%— * * * *__e +- **olo - Weera. xy * A \ in Orgueil) (Saponite \ in Orgueil) | - y \ wo wo SiłA147 40 E 50 Mg Figure ...
Volume 36 of Reviews in Mineralogy presents a comprehensive coverage of the mineralogy and petrology of planetary materials. The book is organized with an introductory chapter that introduces the reader to the nature of the planetary sample suite and provides some insights into the diverse environments from which they come. Chapter 2 on Interplanetary Dust Particles (IDPs) and Chapter 3 on Chondritic Meteorites deal with the most primitive and unevolved materials we have to work with. It is these materials that hold the clues to the nature of the solar nebula and the processes that led to the initial stages of planetary formation. Chapter 4, 5, and 6 consider samples from evolved asteroids, the Moon and Mars respectively. Chapter 7 is a brief summary chapter that compares aspects of melt-derived minerals from differing planetary environments.
Release on 1984 | by Loren A. Raymond
Microscopically, S; is characterized by thin, discrete zones of concentrated opaques and reoriented and/ or recrystallized phyllosilicates. In the shales, these seams of opaques and phyllosilicates cross-cut the structures in the larger ...
Bedding is well defined and consists of both fine - grained phyllosilicates and discontinuous stringers or layers of organic material . The only tectonic structure present in this thin - section is a fault zone that crosses the entire ...
Polysaccharide nanofillers, phyllosilicates, carbonaceous nanofillers, and many other nanofillers and natural fillers have been considered to be used in the formation of starch-based biocomposites. They all are different in surface ...
Value-Added Biocomposites: Technology, Innovation, and Opportunity explores advances in research, processing, manufacturing, and novel applications of biocomposites. It describes the current market situation, commercial competition, and societal and economic impacts and advantages of substituting biocomposites for conventional composites, including natural fibers and bioplastics. FEATURES Discusses manufacturing and processing procedures that focus on improving physical, mechanical, thermal, electrical, chemical, and biological properties and achieving required specifications of downstream industries and customers Analyzes the wide range of available base materials and fillers of biocomposites and bioplastics in terms of the strength and weaknesses of materials and economic potential in the market Displays special and unique properties of biocomposites in different market sectors Showcases the insight of expert scientists and engineers with first-hand experience working with biocomposites across various industries Covers environmental factors, life cycle assessment, and waste recovery Combining technical, economic, and environmental topics, this work provides researchers, advanced students, and industry professionals a holistic overview of the value that biocomposites add across a variety of engineering applications and how to balance research and development with practical results.
Authors: Matthew He, Giri Narasimhan, Sergei Petoukhov
Type: BOOK - Published: 2005-05-03 - Publisher: World Scientific
This unique volume presents major developments and trends in bioinformatics and its applications. Comprising high-quality scientific research papers and state-of-the-art survey articles, the book has been divided into five main sections: Microarray Analysis and Regulatory Networks; Machine Learning and Statistical Analysis; Biomolecular Sequence and Structure Analysis; Symmetry in Sequences; and
Type: BOOK - Published: 2011 - Publisher: World Scientific
This monograph has the ambitious aim of developing a mathematical theory of complex biological systems with special attention to the phenomena of ageing, degeneration and repair of biological tissues under individual self-repair actions that may have good potential in medical therapy.The approach to mathematically modeling biological systems needs to tackle
Authors: Matthew He, Giri Narasimhan, Sergeĭ Valentinovich Petukhov
Type: BOOK - Published: 2005 - Publisher: World Scientific Publishing Company Incorporated
This unique volume presents major developments and trends in bioinformatics and its applications, Comprising high-quality scientific research papers and state-of-the-art survey articles, the book has been divided into three main sections: Sequences, Structures, and Functions; Pathways, Biological Networks, and System Biology; and Microarray Data, Medical Informatics, and Applications. These results
Type: BOOK - Published: 2007-06-13 - Publisher: John Wiley & Sons
A comprehensive, coherent, and in depth presentation of the state of the art in fuzzy clustering. Fuzzy clustering is now a mature and vibrant area of research with highly innovative advanced applications. Encapsulating this through presenting a careful selection of research contributions, this book addresses timely and relevant concepts and
Type: BOOK - Published: 2013-12-31 - Publisher: IGI Global
"This book investigates advanced techniques in user identification and security, including retinal, facial, and finger print scans as well as signature and voice authentication models"--Provided by publisher.