Laurence N. Warr
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View article: Hematite neocrystallisation derived from the experimental alteration of montmorillonite in NaCl solution
Hematite neocrystallisation derived from the experimental alteration of montmorillonite in NaCl solution Open
View article: Exploring reverse silicate weathering across geological time: a review
Exploring reverse silicate weathering across geological time: a review Open
Marine clay mineral authigenesis, referred to as reverse (silicate) weathering, is one of the first-order controls on seawater pH through the generation of acidity and thus plays a significant role in controlling carbon cycling between mar…
View article: Advanced smectite alteration and the role of accessory reactants at 180 °C: New experimental constraints on the stability of bentonite
Advanced smectite alteration and the role of accessory reactants at 180 °C: New experimental constraints on the stability of bentonite Open
View article: The multidisciplinary science of applied clay research: A 2021–2023 bibliographic analysis
The multidisciplinary science of applied clay research: A 2021–2023 bibliographic analysis Open
Clay minerals are functional materials that are increasingly used to develop a diverse range of new applications. An overview of current applied clay research can be obtained by analyzing available bibliographic databases to identify prese…
View article: The Clay Mineral Alteration Index (CMAI) as an improved indicator of climate change
The Clay Mineral Alteration Index (CMAI) as an improved indicator of climate change Open
Several indices for measuring the degree of chemical weathering in soils, sediments and sedimentary rocks based on selective clay minerals have been proposed but quantitative links to climatic parameters, such as mean annual temperature or…
View article: Determining the stoichiometric composition of Wyoming montmorillonite using improved transmission electron microscopy-energy dispersive X-ray (TEM-EDX) techniques
Determining the stoichiometric composition of Wyoming montmorillonite using improved transmission electron microscopy-energy dispersive X-ray (TEM-EDX) techniques Open
Transmission electron microscopy-energy dispersive X-ray analysis (TEM-EDX) represents an effective tool for determining the stoichiometric composition of clay minerals, but the methodology is often hampered by analytical difficulties. Stu…
View article: Developing synthetic sandstones using geopolymer binder for constraining coupled processes in porous rocks
Developing synthetic sandstones using geopolymer binder for constraining coupled processes in porous rocks Open
View article: Understanding Iron Impurities in Australian Kaolin and Their Effect on Acid and Heat Activation Processes of Clay
Understanding Iron Impurities in Australian Kaolin and Their Effect on Acid and Heat Activation Processes of Clay Open
Iron impurities present in the crystal structure of kaolin minerals or in accessory species are frequently encountered in clay deposits. As knowledge of the location and states of the iron is crucial when modifying the properties of clays …
View article: Plasma Spraying of Kaolinite for Preparing Reactive Alumino‐Silicate Glass Coatings
Plasma Spraying of Kaolinite for Preparing Reactive Alumino‐Silicate Glass Coatings Open
Thermally treated kaolinite is used to develop a range of alumino‐silicate‐based precursor materials but its behavior during plasma spraying has not been well‐researched. In this study, two types of kaolinite samples were investigated in t…
View article: A FIB-SEM Study of Illite Morphology in Aeolian Rotliegend Sandstones: Implications for Understanding the Petrophysical Properties of Reservoir Rocks
A FIB-SEM Study of Illite Morphology in Aeolian Rotliegend Sandstones: Implications for Understanding the Petrophysical Properties of Reservoir Rocks Open
Diagenetic illite growth in porous sandstones leads to significant modifications of the initial pore system which result in tight reservoirs. Understanding and quantifying these changes provides insight into the porosity-permeability histo…
View article: CSD 2124994: Experimental Crystal Structure Determination
CSD 2124994: Experimental Crystal Structure Determination Open
View article: In Situ Measurements of the Hydration Behavior of Compacted Milos (SD80) Bentonite by Wet-Cell X-ray Diffraction in an Opalinus Clay Pore Water and a Diluted Cap Rock Brine
In Situ Measurements of the Hydration Behavior of Compacted Milos (SD80) Bentonite by Wet-Cell X-ray Diffraction in an Opalinus Clay Pore Water and a Diluted Cap Rock Brine Open
Compacted bentonite is currently being considered as a suitable backfill material for sealing underground repositories for radioactive waste as part of a multi-barrier concept. Although showing favorable properties for this purpose (swelli…
View article: Thermally Induced Bentonite Alterations in the SKB ABM5 Hot Bentonite Experiment
Thermally Induced Bentonite Alterations in the SKB ABM5 Hot Bentonite Experiment Open
Pilot sites are currently used to test the performance of bentonite barriers for sealing high-level radioactive waste repositories, but the degree of mineral stability under enhanced thermal conditions remains a topic of debate. This study…
View article: Bentonite Alteration in Batch Reactor Experiments with and without Organic Supplements: Implications for the Disposal of Radioactive Waste
Bentonite Alteration in Batch Reactor Experiments with and without Organic Supplements: Implications for the Disposal of Radioactive Waste Open
Bentonite is currently proposed as a potential backfill material for sealing high-level radioactive waste in underground repositories due to its low hydraulic conductivity, self-sealing ability and high adsorption capability. However, sali…
View article: A Brief History of Mineral Symbols
A Brief History of Mineral Symbols Open
View article: IMA–CNMNC approved mineral symbols
IMA–CNMNC approved mineral symbols Open
Several text symbol lists for common rock-forming minerals have been published over the last 40 years, but no internationally agreed standard has yet been established. This contribution presents the first International Mineralogical Associ…
View article: Simulating permeability reduction by clay mineral nanopores in a tight sandstone by combining computer X-ray microtomography and focussed ion beam scanning electron microscopy imaging
Simulating permeability reduction by clay mineral nanopores in a tight sandstone by combining computer X-ray microtomography and focussed ion beam scanning electron microscopy imaging Open
Computer X-ray microtomography (µXCT) represents a powerful tool for investigating the physical properties of porous rocks. While calculated porosities determined by this method typically match experimental measurements, computed permeabil…
View article: Simulating permeability reduction by clay mineral nanopores in a tight sandstone by combining μXCT and FIB-SEM imaging
Simulating permeability reduction by clay mineral nanopores in a tight sandstone by combining μXCT and FIB-SEM imaging Open
Computer microtomography (µXCT) represents a powerful tool for investigating the physical properties of porous rocks. While calculated porosities determined by this method typically match experimental measurements, computed permeabilities …
View article: Recommended abbreviations for the names of clay minerals and associated phases
Recommended abbreviations for the names of clay minerals and associated phases Open
An abstract is not available for this content. As you have access to this content, full HTML content is provided on this page. A PDF of this content is also available in through the 'Save PDF' action button.
View article: <i>In situ</i> monitoring of hydrothermal reactions by X-ray diffraction with Bragg–Brentano geometry
<i>In situ</i> monitoring of hydrothermal reactions by X-ray diffraction with Bragg–Brentano geometry Open
This note describes an autoclave chamber developed and constructed by Anton Paar and its application for in situ experiments under hydrothermal conditions. Reactions of crystalline phases can be studied by successive in situ measurements o…
View article: Synthesis of Hydroxy-Sodalite/Cancrinite Zeolites from Calcite-Bearing Kaolin for the Removal of Heavy Metal Ions in Aqueous Media
Synthesis of Hydroxy-Sodalite/Cancrinite Zeolites from Calcite-Bearing Kaolin for the Removal of Heavy Metal Ions in Aqueous Media Open
A hydroxy-sodalite/cancrinite zeolite composite was synthesized from low-grade calcite-bearing kaolin by hydrothermal alkali-activation method at 160 °C for 6 h. The effect of calcite addition on the formation of the hydroxy-sodalite/cancr…
View article: The Year-Long Development of Microorganisms in Uncompacted Bavarian Bentonite Slurries at 30 and 60 °C
The Year-Long Development of Microorganisms in Uncompacted Bavarian Bentonite Slurries at 30 and 60 °C Open
In the multibarrier concept for the deep geological disposal of high-level radioactive waste (HLW), bentonite is proposed as a potential barrier and buffer material for sealing the space between the steel canister containing the HLW and th…
View article: A new collection of clay mineral ‘Crystallinity’ Index Standards and revised guidelines for the calibration of Kübler and Árkai indices – ERRATUM
A new collection of clay mineral ‘Crystallinity’ Index Standards and revised guidelines for the calibration of Kübler and Árkai indices – ERRATUM Open
An abstract is not available for this content. As you have access to this content, full HTML content is provided on this page. A PDF of this content is also available in through the ‘Save PDF’ action button.
View article: Spatiotemporal Characterization of Smectite‐to‐Illite Diagenesis in the Nankai Trough Accretionary Prism Revealed by Samples From 3 km Below Seafloor
Spatiotemporal Characterization of Smectite‐to‐Illite Diagenesis in the Nankai Trough Accretionary Prism Revealed by Samples From 3 km Below Seafloor Open
The up‐dip limit of seismogenesis in subduction zone forearcs depends on the lithological composition of the incoming sediment and its subsequent modification during compaction and diagenesis. Here we present results of a multimethodologic…
View article: Biocompatible functionalisation of nanoclays for improved environmental remediation
Biocompatible functionalisation of nanoclays for improved environmental remediation Open
This review presents a summary of modified nanoclays and new perspective of producing biocompatibly functionalised nanoclays for environmental remediation.
View article: DEEP DISPOSAL OF SPENT NUCLEAR FUEL
DEEP DISPOSAL OF SPENT NUCLEAR FUEL Open
An alternative but still untested approach is to dispose of highly radioactive waste in very deep boreholes, a concept being considered in the UK and the US.One version of this concept known as Very-Deep-Hole (VDH) storage proposes drillin…
View article: Condensed summary of current R&D on cementitious sealants for deep boreholes with HLW
Condensed summary of current R&D on cementitious sealants for deep boreholes with HLW Open
View article: The role of Fe on the formation and diagenesis of interstratified glauconite-smectite and illite-smectite: A case study of Upper Cretaceous shallow-water carbonates
The role of Fe on the formation and diagenesis of interstratified glauconite-smectite and illite-smectite: A case study of Upper Cretaceous shallow-water carbonates Open
Black carbon (BC) plays an important role in terrestrial carbon storage. Nevertheless, the effect of cultivation on long term dynamics of BC in soil has been poorly addressed. To fill this gap, we studied the chemical properties of charcoa…
View article: A review of cementitious sealants for Deep Boreholes with HLW
A review of cementitious sealants for Deep Boreholes with HLW Open
Cement-based materials for use as sealants in underground waste storages must be erosion-resistant and chemically stable. Placement of highly radioactive waste (HLW) in boreholes may require that the rock is cement-grouted and stabilized b…
View article: Experimental constraints on the relationship between clay abundance, clay fabric, and frictional behavior for the <scp>C</scp>entral <scp>D</scp>eforming <scp>Z</scp>one of the <scp>S</scp>an <scp>A</scp>ndreas <scp>F</scp>ault
Experimental constraints on the relationship between clay abundance, clay fabric, and frictional behavior for the <span>C</span>entral <span>D</span>eforming <span>Z</span>one of the <span>S</span>an <span>A</span>ndreas <span>F</span>ault Open
The presence of smectite (saponite) in fault gouge from the Central Deforming Zone of the San Andreas Fault at Parkfield, CA has been linked to low mechanical strength and aseismic slip. However, the precise relationship between clay miner…