搜索结果: 1-15 共查到“凹凸棒石 Shales”相关记录23条 . 查询时间(0.078 秒)
The role of mineral surfaces in the preservation and transformation of organic carbon: meso- to nano– scale spatial complexity of organic matter forms in organic-rich shales
mineral surfaces preservation transformation organic carbon meso- to nano– scale spatial complexity organic matter forms organic-rich shales
2012/3/30
Sequestration of organic matter (OM) in sediments is a fundamental biogeochemical process that regulates planetary temperature, the flux of free oxygen to the atmosphere and oceans, and the distributi...
Boron Release from Weathering of Illites, Serpentine, Shales,and Illitic/Palygorskitic Soils
Illitic/Palygorskitic Soils Boron Release
2011/11/11
Boron Release from Weathering of Illites, Serpentine, Shales,and Illitic/Palygorskitic Soils.
Transmission Electron Microscopy Study of Very Low-Grade Metamorphic Rocks in Cambrian Sandstones and Shales, Ossa-Morena Zone, Southwest Spain
AEM Anchizone Chloritic Phases Clastic Rocks Mica Polytypes Variscan Belt
2011/12/5
Abstract: This study examines the evolution of the texture, structure, and chemical composition of rocks derived from clastic materials of the Ossa-Morena Zone (Hesperian Massif, Spain). Previous stud...
Comparison of the Mineralogical and Chemical Composition of 2 Shales from the Western Canada Sedimentary Basin and the United States Gulf Coast
Deposition Diagenesis Geochemistry Mineralogy Mixed-Layer Illite/Smectite Oxygen Isotopes
2011/12/9
Abstract: The mineralogy and geochemistry of shales reflect the composition of the initially deposited precursor mud, subsequently modified by diagenetic processes. To see if significant geochemical d...
Inter-Basinal Comparison of the Diagenetic Evolution of Illite/Smectite Minerals in Buried Shales on the Basis of K-Ar Systematics
Burial Diagenesis Illite/Smectite Mixed Layers Illitization K-Ar Data Sedimentary Basins Shales
2011/12/27
The K-Ar systematics of illite/smectite (I/S) mixed layers in deeply buried shales from the Gulf Coast, the North Sea and the Mahakam Delta basins have been compared to provide additional perspectives...
TEM Observations of Coherent Stacking Relations in Smectite, I/S and Illite of Shales: Evidence for MacEwan Crystallites and Dominance of 2M1 Polytypism
2M1 Polytypism Coherent Fundamental Particles Illite I/S MacEwan Crystallites Optical Diffraction Patterns SAED Smectite Stacking Relations Cross Fringes
2011/12/23
Abstract: TEM characterization of stacking relations in I/S of expanded shale samples from the Gulf Coast and Michigan Basin was carried out to address the issues of the degree of coherency and the na...
Particle Morphological Evolution During the Conversion of I/S to Illite in Lower Cretaceous Shales from Sergipe-Alagoas Basin, Brazil
Illite Illite/smectite Morphology Shale TEM XRD
2011/12/1
Abstract: The illitic end of mixed-layer illite-smectite series (I/S) in shales from Lower Cretaceous Barra de Itiúba Formation, Sergipe-Alagoas basin, was examined with X-ray powder diffraction (XRD)...
A Chemical, XRD, and 27Al MAS NMR Investigation of Miocene Gulf Coast Shales with Application to Understanding Illite/Smectite Crystal-Chemistry
Burial diagenesis Gulf Coast Illite/smectite Miocene NMR
2011/12/30
This study assesses the distribution of Al and Fe in mixed-layer illite/smectites (I/S) in shales undergoing burial diagenetic changes, using evidence from 27Al NMR, XRD, and chemical analyses. Sample...
Illite/Smectite from Gulf Coast Shales: A Reappraisal of Transmission Electron Microscope Images
Illite/smectite Lattice-fringe images Periodicity Transmission electron microscopy X-ray powder diffraction
2012/1/9
Transmission electron microscope (TEM) images of mixed-layer illite/smectite (I/S) from Gulf Coast shales obtained earlier by the authors have been reexamined by comparing them with the calculated ima...
Microstructures, Formation Mechanisms, and Depth-Zoning of Phyllosilicates in Geothermally Altered Shales, Salton Sea, California
Chlorite Electron microscopy Fluid-mineral equilibria Geothermal field Illite Salton Sea Smectite Texture
2011/11/28
Abstract: Scanning, transmission, and analytical electron microscopy studies of shales from the Salton Sea geothermal field revealed that phyllosilicates progress through zones of illite-muscovite (11...
Absence of Clay Diagenesis in Cretaceous-Tertiary Marine Shales, Campos Basin, Brazil
Diagenesis Illite Interstratified Nontronite Shale Smectite X-ray powder diffraction
2012/1/12
In Upper Cretaceous-Tertiary marine shales (Campos Formation) from the Campos basin, Brazil, mixed-layer illite/smectite (I/S) has remained randomly interstratified to depths of 3500 m and to temperat...
Relationship Between Illite/Smectite Diagenesis and Hydrocarbon Generation in Lower Cretaceous Mowry and Skull Creek Shales of the Northern Rocky Mountain Area
Diagenesis Hydrocarbon Illite/smectite Interstratification Maturation Pyrolysis Shale
2012/1/12
The percentage of expandable layers in illite/smectite (I/S) mixed-layer clay decreases with increasing temperature and depth in a section through marine Cretaceous shales in the Champlin 1 Hartley Fe...
Mixed-Layer Illite/Smectite Minerals in Tertiary Sandstones and Shales, San Joaquin Basin, California
Carbonate cementation Illite/smectite Microprobe analysis Mixed layer Smectite Time-temperature index
2012/1/11
The southern San Joaquin Valley contains more than 7 km of sedimentary fill, largely Miocene and younger in age. Ancient depositional environments ranged from alluvial fans at the basin margins to tur...
Hydrothermal Reactions of Strontium and Transuranic Simulator Elements with Clay Minerals, Zeolites, and Shales
Chlorite Clinoptilolite Hydrothermal treatment Illite Lanthanum Montmorillonite Neodymium Nuclear waste Shale Strontium Zeolite
2012/2/6
Reactions of Sr, La, and Nd (the latter two elements simulating Am and Cm) with potential backfill minerals for radioactive waste storage and with repository wall rocks, such as shale, were investigat...
Natural Ammonium Illites from Black Shales Hosting a Stratiform Base Metal Deposit, DeLong Mountains, Northern Alaska
Ammonium Black shale Illite Infrared spectroscopy Nitrogen X-ray powder diffraction
2012/2/7
Naturally occurring ammonium illites have been discovered in black shales surrounding a stratiform base metal deposit in the DeLong Mountains, northern Alaska. Infrared spectra of the samples exhibit ...