搜索结果: 1-14 共查到“矿床学与矿相学 Oxygen”相关记录14条 . 查询时间(0.109 秒)
Therapeutic Efficacy of Hyperbaric Oxygen on the Severe Acute Mountain Sickness Complicated with MODS
Hyperbaric Oxygen MODS Severe Acute Mountain Sickness Therapy
2011/12/16
Objective: To observe the treatment effects of hyperbaric oxygen on severe acute mountain sickness (ASHS) integrated with multiple organ dysfunction syndromes (MODS). Methods: 2006-2010 admitted to tw...
Oxygen-Isotope Fractionation between Aluminum-Hydroxide Phases and Water at <60C: Results of Decade-Long Synthesis Experiments
Aluminum Hydroxides Fractionation Factor Gibbsite Oxygen Isotope Synthesis
2011/12/6
Abstract: Oxygen-isotope data were obtained for synthetic aluminum-hydroxide phases precipitated over 65–125 mo and have been compared to results from similar experiments conducted for 3–56 mo. The Al...
Reactive Al-O-Al sites in a natural zeolite: Triple-quantum oxygen-17 nuclear magnetic resonance
Reactive Al-O-Al sites natural zeolite Triple-quantum oxygen-17 nuclear magnetic resonance
2012/4/1
In framework aluminosilicate materials (e.g., feldspars, zeolites and many others), it is generallyassumed that AlOtetrahedra do not share corners, i.e., that Al-O-Al oxygen sites are avoided whenstoi...
High-resolution synchrotron X-ray powder diffraction and Rietveld structure refinement of two (Mg0.95,Fe0.05)SiO3 perovskite samples synthesized under different oxygen fugacity conditions
high-resolution synchrotron X-ray powder diffraction
2012/3/30
Thispaperpresentshigh-resolutionsynchrotronX-raypowderdiffractiondataat290K
ontwoFe-bearing,polycrystallinesilicateperovskitesampleswithapproximatecompo-
Fe )SiO synthesizedat25GPaand1920Kinamulti-a...
Oxygen Isotope Compositions of Mixed-Layer Serpentine-Chlorite and Illite-Smectite in the Tuscaloosa Formation (U.S. Gulf Coast): Implications for Pore Fluids and Mineralogic Reactions
Diagenesis Illite-Smectite Oxygen Isotopes Sandstone Serpentine-Chlorite Tuscaloosa Formation
2011/12/8
Abstract: Oxygen isotopic compositions were determined for coexisting mixed-layer serpentine-chlorite (Sp-Ch) and illite-smectite (I-S) from 5 Tuscaloosa Formation sandstone cores sampled between 1937...
Oxygen self-diffusion in rutile was studied in synthetic and natural samples over the temperature range 750 to 1000 8 C and the pressure range 0.1 to 1000 MPa using an 18 O-enriched source. Most exper...
Direct oxygen measurements of Cr-rich spinel: Implications for spinel stoichiometry
Direct oxygen measurements Cr-rich spinel Implications spinel stoichiometry
2012/4/6
Theavailability ofa synthetic multilayercrystal and accurately calibrated oxide and silicate standards makeit possible to usethe electron microprobefor precisea analysis ofspinel. Arequirement ofthe a...
Oxygen Isotopic Constraints on the Origin of Nodular Silica-Apatite from the Har Peres Pyroclastics, Golan Heights, Israel
Apatite Har Peres pyroclastics Oxygen isotope
2011/12/29
Oxygen isotope composition of three types of unique nodules which consist of amorphous silica-apatite, cristobalite-apatite and tridymite-apatite associations interspersed amidst basaltic pyroclastics...
Implications of Linearly Correlated Oxygen and Hydrogen Isotopic Compositions for Kaolinite and Illite in the Magnus Sandstone, North Sea
Illite Kaolinite Stable isotopes Porewater
2011/12/29
Authigenic kaolinite and illite are important diagenetic minerals in the Magnus Sandstone, a giant oil reservoir in the northern North Sea. These clay minerals, separated from three wells, show consid...
Oxygen Isotope Measurements of Albite-Quartz-Zeolite Mineral Assemblages, Hokonui Hills, Southland, New Zealand
Albite Diagenesis Formation temperature Heulandite Laumontite Oxygen isotopes Quartz Stilbite Zeolites
2012/1/6
The oxygen isotopes of albite, quartz, and zeolites from the Hokonui Hills, New Zealand, constrain crystallization temperatures and the type of pore fluids present during diagenesis. A section of alte...
Oxygen Isotopes and the Extent of Diagenesis of Clay Minerals during Sedimentation and Burial in the Sea
Diagenesis Gulf of Mexico Isotope Mississippi River Oxygen Sedimentation Smectite
2012/1/12
Oxygen isotope ratios of <0.1-µm smectite in bottom sediments of the Mississippi River and the Gulf of Mexico near the mouth of the river have been determined to investigate diagenesis of land-d...
Oxygen Isotope Changes during Mica Alteration
Mica Oxygen isotopes Potassium Recrystallization Saponite Weathering
2012/2/1
Oxygen isotope analyses (δO18) of micas that were artificially depleted in K+ indicate little or no isotope exchange during the transformation. The oxidation of iron in K-depleted, iron-rich micas by ...
Cristobalite Morphology and Oxygen Isotopic Composition Variation under Hydrothermal Alteration
Cristobalite Morphology Oxygen Isotopic Composition Variation Hydrothermal Alteration
2011/11/18
Abstract: From 2 to 28% opal-cristobalite was isolated from the 2–20 µm fraction of rhyolitic and andesitic tuffaceous pyroclastics from the Island of Honshu, Japan, where it had been formed in ...
Scanning Electron Microscopy of Cherts in Relation to the Oxygen Isotopic Variation of Soil Quartz
Scanning Electron Microscopy Cherts Oxygen Isotopic Variation Soil Quartz
2012/2/15
Quartz isolated from soils by the pyrosulfate-H2SiF6 method and chert samples of various origins were examined with the scanning electron microscope. Quartz isolates of the 20?0 祄 from the A2 and B2lt...