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Showing 1 to 20 of 95 for “"Fluid Inclusions"”.
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Geological applications of synthetic fluid inclusions
… been determined by experimentally synthesizing fluid inclusions in quartz in the presence of known brine compositions and then measuring the dissolution temperatures of halite and/or sylvite daughter crystals within the inclusions using a microscope equipped with a heating stage. These data, …
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Application of fluid inclusions in geological thermometry
… processes occur in association with hydrothermal fluids and some of these fluids are eventually trapped as fluid inclusions in minerals formed during the process. Fluid inclusions provide valuable information on the pressure, temperature and fluid composition (PTX) of the environment of formation, …
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Effects of stress and fluid inclusions on wave propagation in rock.
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Sciences, 1969.
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The role and fate of fluid inclusions in natural and experimental deformation
Fluid circulation is essential for several geological processes. In the upper crust, brittle fractures and faults can provide pathways for surface fluids to reach ductilely deforming regions in the mid to lower crust where fluids can substantially weaken the rocks. Although this phenomenon is well …
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The mechanics of elastomers filled with electro-active solid and fluid inclusions
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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Application of Fluid Inclusions and Mineral Textures in Exploration for Epithermal Precious Metals Deposits
Fluid inclusion and mineralogical features indicative of boiling have been characterized in 855 samples from epithermal precious metals deposits along the Veta Madre at Guanajuato, Mexico. Features associated with boiling that have been identified at Guanajuato include colloform texture silica, …
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Wave scattering from cylindrical fluid inclusions in an elastic medium and determination of effective medium properties
… ice is modeled as a solid in which cylindrical fluid brine channels are embedded. The solution is formulated by deriving the scattering from a single cylindrical fluid-filled inclusion in an attenuating elastic medium. The scattering vs. angle results are shown for a laboratory experiment in …
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Wave scattering from cylindrical fluid inclusions in an elastic medium and determination of effective medium properties
Thesis (Ocean. E.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1995.
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Detection limits of CO₂in fluid inclusions using microthermometry and Raman spectroscopy and the spectroscopic characterization of CO₂
… of CO₂. At ambient temperature, in fluid inclusions which trap these solutions, the typical phase assemblage consists of a CO₂-rich vapor (where P<sub>CO₂</sub> ≈ P<sub>internaI</sub>) and an aqueous phase containing dissolved salts and CO₂. In this study, the CO₂ minimum detection …
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Fluid inclusions: evidence for a counterclockwise P-T trajectory in the Central Maine terrane of South-Central Massachusetts
… assemblages, and development of high density CO₂ inclusions in the host rock of the mylonite. Peak conditions in the highest grade rocks were 685 - 780°C and 5-6 kbar; the cooling path passed through 550°C at pressures of 6.5-8 kbar. Fluid inclusion data show a range of fluid composition and …
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A Study of Petrography, Fluid Inclusions and Graphite Alteration of the Phoenix Uranium Deposit, Athabasca Basin, Northern Saskatchewan, Canada
… developed tourmaline alteration. Primary aqueous fluid inclusions were studied in post-diagenetic, pre- to syn-mineralisation quartz overgrowths and vug-filling drusy quartz in sandstone (QBSN2), and syn- to post-mineralisation, veinfilling coarse-grained drusy quartz in both sandstone (QBSN3) and …
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Fluid inclusions as a monitor of progressive grain-scale deformation during cooling of the Papoose Flat pluton, eastern California
Analyses of fluid inclusions and microstructures within the Papoose Flat pluton were used to investigate the chemistry and temperatures of fluids circulating with the pluton during cooling. Based on previous microstructural analyses, the interior of this late Cretaceous granitic to granodioritic …
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Fluid flow and deformation history of the Denver basin, CO region: fluid inclusions, U-Pb geochronology and isotope geochemistry of calcite-filled fracture cements in the Niobrara Formation
… faults, open stylolites) acted as conduits for fluid flow. However, little to no constraints on the origin, temperature, composition, and timing of these fluid flow events exist. We address this through analysis of fracture-filling cements in the Niobrara Formation with the integration of …
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Role of fluids in geological processes
… geological processes. Small aliquots of these fluids can be preserved in the geological record as fluid inclusions and can provide valuable information about the physical and chemical environment in which they formed. The ocean is the largest water reservoir on the Earth's surface, and seawater …
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Carbon and mineral transformations in seafloor serpentinization systems
… peridotite interacts with carbon-bearing aqueous fluids in the subseafloor, dissolved inorganic carbon can precipitate as carbonate minerals or undergo reduction by H2(aq) to form reduced carbon species. In Chapters 2 and 3, I conduct laboratory experiments to assess the relative extents of …
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Carbon and mineral transformations in seafloor serpentinization systems
… peridotite interacts with carbon-bearing aqueous fluids in the subseafloor, dissolved inorganic carbon can precipitate as carbonate minerals or undergo reduction by H2(aq) to form reduced carbon species. In Chapters 2 and 3, I conduct laboratory experiments to assess the relative extents of …
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Fluids in Planetary Systems
… of planetary surfaces and the evolution of life, fluids play an integral role in shaping planetary bodies. Fluid properties and processes were investigated under a range of planetary conditions through (1) experimental simulations of impact events and petrographic analysis of terrestrial …
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An investigation of hydrogen gas in olivine
… (2005) concluded that hydrogen gas occurs within fluid inclusions contained by olivine crystals. In the present study the H2 content in olivine samples was investigated using optical microscopic and Raman spectroscopic analysis. The current study failed to confirm the occurrence of the hydrogen …
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