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|a Frey, Martin
|9 15361
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| 245 |
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|a Low-grade metamorphism /
|c Martin Frey and Doug Robinson
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| 250 |
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|a 1st ed.
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| 260 |
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|a Oxford :
|b Blackwell science,
|c 1999.
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| 300 |
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|a 313 p. :
|b grafs., mapas ;
|c 25 cm.
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| 500 |
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|a Incluyeíndice analítico
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| 505 |
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|a 1.Low-temperature metamorphism: an overview / D. Robinson and R. J. Merriman -- What is it? -- A decade of progress -- Very low-grade metamorphism in a global setting -- Does low temperature metamorphism matter? -- Mineral abbreviations – 2. Very low-grade metapelite.: mineralogy, microfabrics and measuring reaction progress / R. J. Merriman and D. R. Peacor -- Metapelitic rocks – Introduction -- Metapelitic zones and lithology -- Metastable equilibrium and day mineral reaction progress -- Mineralogical relations -- Phyllosilicate reaction series -- Smectite-I/S-illite-muscovite -- Smeetite-corrensite-chlorite -- Kaolinite-pyrophyllite – Berthierine -- Melapelitic microfabrics – Introduction -- Microfabrics of the late diagenetic zone -- The anchizone and slaty cleavage development -- The anchizone-epizone transition -- Measuring reaction progress -- X-ray diffraction techniques -- Transmission electron microscope-techniques -- Correlation of X-ray diffraction and transmission electron microscope measurements – Retrogression -- Geothermometry and geobarometry -- Illite-smectite reaction -- Illite and chlorite cryslallinity -- Chlorite geothermometers -- Polytypism of chlorite and white mica -- Phengite geobarometer -- Overview of conditions of very low-grade metamorphism -- Future research – 3.Patterns of very low-grade metamorphism in metepelitic rocks / R. J. Merriman and M. Frey – Introduction -- Sampling and data interpretation -- Field sampling -- Methods of displaying regional metapelitic data -- Metapelites and basin maturity -- Pattern recognition -- Regional patterns of very low-grade metamorphism -- Geotectonic setting -- Extensional settings -- Accretionary settings -- Collisional settings -- High strain zones -- Low-temperature contact metamorphism -- Aureoles predating reginal metamorphism -- Aureoles postdating regional metamorphism -- Regional controls on metapelitic patterns – Conclusions – 4. Petrological methods for the study of very low-grade metabasites / P. Schiffman and H. W. Day – Introduction -- Field study of very low-grade metabasites -- Primary features -- Glass and palagonitic -- Primary minerals – Vesicles -- Secondary minerals -- Mafic layer silicates -- Pumpellyite, prehnite and epidote -- Other minerals -- Electron microprobe analysis of low-grade metabasites -- Analytical conditions -- Analytical difficulties – Standards -- Analytical uncertainties -- Criteria for a good analysis -- Quantitative application of electron microprobe data -- Projections of low-grade mineral assemblages -- Projection from chlorite -- Projections from calcium-aluminium silicates -- Algebraic methods – Petrogenetic grids – Thermobarometry – 5.Patterns of regional low-grade metamorphism in metabasites / D. Robinson and R. E. Bevins – Introduction – Regional low-grade metamorphism -- Extensional settjngs--Welsh Basin -- Extensional settings-Andean Basins -- Subaerial flood basalt sequences -- Eastern North Greenland -- North Shore Volcanic Group, Minnesota -- Convergent settings -- Canadian Shield, Abitibi terrane -- Northern Sierra Nevalla – Conclusions – 6. Very low-grade hydrothermal metamorphism of basic igneous rocks / J. C. Alt – Introduction -- Oceanic crust -- Oceanic crustal structure, porosity and permeability -- Heat sources and convection in ocean crust -- Submarine versus subaerial hydrothermal systems -- Sampling ocean crust -- The volcanic section -- Initial low-temperature hydrothermal processes in the volcanic section – Low-temperature hydrothermal seawater-rock interactions in the volcanic section -- Restricted low-temperature hydrothermal interactions in the volcanic section -- Ageing of the volcanic section: late carbonates and zeolites -- The transition zone and upper sheeted dyke complex: the transition to low-grade hydrothermal metamorphism -- The lower sheeted dyke complex and the plutonic section: the roots of submarine hydrothermal systems -- Hydrothermal upflow zones and formation of seafloor sulphide deposits -- Seawater-crustal chemical fluxes at mid-ocean ridges and cycling at subduction zones – Ophiolites -- Very low-grade metamorphism at oceanic islands -- Iceland -- La Palma -- Island arcs and back-arc basins -- Submarine rocks – Japan -- Examples of sediment-hosted geothermal systems -- Rhyolitic volcanic-hosted geothermal systems -- Summary and conclusions – 7. Isotopic dating of very low-grade metasedimentary and metavolcanic rocks: techniques and methods / N. Clauer and S. Chaudhuri – Introduction -- Importance of mineral separation and characterization –Separation – Characterization – Summary -- Principles of isotope dating -- Methodology of isotopic dating -- Some specific aspects and applications -- Fission-track dating -- Rock lithologies and isotopic homogenization -- In sheetsilicates of metapelites and metaarkoses -- In sheetsilicates of metapelites and metatufls -- In sheetsilicates of metapelites and metabasites – Summary -- Metamorphic degree and extent of isotopic homogenization -- In sheetsilicates of shales -- In sheetsilicates of slates -- In sheetsilicates of metagreywackes -- In whole rocks -- A model for isotopic homogenization in low-grade metamorphic conditions -- Basin evolution based on combined isotopic and fission-track data – Conclusions – Acknowledgemems – 8. Application of stable isotope geochemistry to low-grade metamorphic rocks / Z D, Sharp – Introduction – Terminology -- Mass spectrometry -- Sample extraction techniques – Carbonates – Silicates -- Sulphides and sulphates -- Graphite and organic matter – Hydrogen -- Gas chromatography isotope ratio mass spectrometry methods -- Isotopic reservoirs – Water – Rocks – Thermometry -- Basic fractionation equations -- Mineral fractionation factors -- Volatile loss: dehydration, decarbonation, desulphidation and dehydrogenation -- Mineral purification -- Chemical purification --Fine-grained phyllosilicates: clays -- Porphyroblasts, veins and vug fillings -- Applications to rocks of sedimentary origin -- Diagenesis: general considerations --Diagenesis: examples -- Low·grade metamorphism --Ocean basalts -- DSDP-ODP results – Veins -- Tracing fluid origins: a combined stable isotope-fluid inclusion study of Variscan crustal fluids -- A combined structural-oxygen isotope thermometry study of nappe formation: an example from the Helvetic Alps -- Retrograde metamorphism.
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