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Equilibrium fractionation is temperature-dependent, always. ... clastic sediments. marine limestones. Why does eclogite have. a heavier d18O than MORB? ...
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Lecture: No. 3 Geothermometry, and fluid inclusion studies Geothermometry :the branch of geology that measures temperatures deep below the surface of the earth;
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Consistent with clinopyroxene-melt geothermometer (Putirka et al., 2001) ... Aenigmatite-Ilmenite geothermometer? Limitations / Work Needed ...
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Title: GEOTHERMOMETRY APPLICATIONS Author: NG Created Date: 5/10/2003 9:43:18 PM Document presentation format: On-screen Show Other titles: Arial Times New Roman ...
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Geothermobarometry Partioning of Fe, Mg with Temperature: The Garnet-Biotite Geothermometer Fe, Mg have similar ionic radii, therefore volume change small The Garnet ...
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... activities of dissolved species (activity is unity for pure solid phases) ... Na-K-Ca-Mg Geothermometer. Fournier and Potter (1979) T = TNa-K-Ca ...
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Geophysics/Tectonics Brief Review of the Universe GLY 325
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Measuring T and P in Rocks No Pure Geothermometers or Geobarometers All mineral equilibria depend on T, P and other variables. Some minerals (staurolite) appear over ...
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Given how poorly we understand so many geothermal systems, exploration ... volcanic rocks (seawater origins), connate seawater in sedimentary rocks, halite ...
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Alternatives do not amount to a single, generic, one-size fits ... Domal? - complex pattern predicted by both? Temperature - necessary? CMB origin - detectable? ...
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Thus, if we had a rock with clinopyroxene and olivine which we can assume were ... This calibration can be written in the alternative form: ...
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Geologic and Geophysical Analyses of Geothermal Fields in the Northwestern Great Basin, Western USA:
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Basic Model of the Geothermal Resource at Puchuldiza, Chile: Geology, Hydrochemistry and Geophysics
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Geothermal Workshop, Jan 11, 2002
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an End-Users Viewpoint. Fluids Chemistry. High-Performance/Pressure Liquid ... Isotope Studies ... Studies of acidic reservoir fluids. Increased experience with S, C, Ar, Rn, ...
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Almandine Spessartine. Grossular Andradite. Pyrope. Garnet ... Almandine-Pyrope in Granulitic gabbro. Almandine rich garnet in mylonitic zone and ...
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Characterizing Controls of Geothermal Systems through Integrated Geologic and Geophysical Studies: D
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Experimental petrology. Analogic modeling. Main research topics of IGG ... Petrology and petrography. Rock-fluid interaction. Fluid inclusions in minerals ...
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Chapter 5. Geochemical Zoning in Metamorphic Minerals Introduction Major element zoning: e.g. Garnet (a) growth zoning; (b) diffusion zoning. 3. Trace element zoning ...
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Chapter 25. Metamorphic Facies and Metamorphosed Mafic Rocks V.M. Goldschmidt (1911, 1912a), contact metamorphosed pelitic, calcareous, and psammitic hornfelses in ...
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Thermodynamics Begin with a brief review of Chapter 5 Natural systems tend toward states of minimum energy Figure 27.13. P-T pseudosection calculated by THERMOCALC ...
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Chapter 21: Metamorphism Rocks as chemical systems (Ch. 5) a particular assemblage of coexisting phases (thermodynamic equilibrium and the phase rule)
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Geothermal Resource Exploration and Definition U.S. Department of Energy Albuquerque Operations Office GRED Program Geothermal Resource Exploration & Definition ...
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... zone to the Calcite + clinohumite + forsterite + spinel sub-zone involves the reaction: 2 Clinohumite + SiO2 9 Forsterite + 2 H2O b) ...
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Progressive devolatilization in subduction environment ... 'ISOTHERM' DIAGRAM ... 'Isotherm' diagram from O isotopes in an eclogite -- the slope is 106/T2 ...
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Chapter 21: Metamorphism Fresh basalt and weathered basalt Coombs (1961) also proposed hydrothermal metamorphism Many areas of burial metamorphism are also ...
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T-X phase diagram of the system albite-orthoclase at ... of several determined univariant reactions in the CaO-MgO-Al2O3-SiO2-H2O-(Na2O) system ( C(N)MASH ...
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... petrogenetic grid for metamorphosed mafic rocks showing the location of several determined univariant reactions in the CaO-MgO-Al2O3-SiO2-H2O-(Na2O) system ...
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More Ca-rich plagioclases become progressively unstable as T lowered ... pressure-temperature-time paths based on a crustal thickening heat-flow model. ...
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There are currently 119 geothermal power producing units in 4 states with a ... Satellite Imagery. Gravity Surveys. Seismic Surveys. Geochemical Surveys. Modeling ...
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Coolbaugh DOE Peer Review 2003
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(French Massif Central, Eifel, Bohemian Massif and Pannonian Basin) ... Islands Basalts: Hawaiian-Emperor Chain, St. Helena, French Polynesia, and so on) ...
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