ALBERT

Note: Contents 1 Introduction I Definition of geocryology and periglacial II Objectives III Processes IV Environments V References 2 Environmental factors I Introduction II Basic factors Ill Dependent factors 3 Frozen ground I Introduction II Seasonally frozen ground Ill Permafrost 4 General frost-action processes I Introduction II Freezing process Ill Estimates of freezing and thawing IV Frost wedging V Frost heaving and frost thrusting VI Mass displacement VII Frost cracking VIII Sorting by frost action 5 Some periglacial forms I Introduction II Patterned ground Ill Periglacial involutions IV Stone pavements V String bogs VI Palsas VII Pingos 6 Mass-wasting processes and forms I Introduction lI Avalanching Ill Slushflow IV Thaw slumping V Frost creep VI Gelifluction VII Frost-creep and gelifluction deposits VIII Rock glaciers IX Taluses X Protalus ramparts 7 Nivation I Introduction II Nivation benches and hollows Ill Cryoplanation terraces and cryopediments 8 Slopewash I Introduction II Grèzes litées 9 Fluvial action I Introduction II Icings Ill Break-up phenomena IV Flat-floored valleys V Asymmetric valleys VI Dry valleys and dells 10 Lacustrine and marine action I Introduction II Lacustrine action Ill Marine action 11 Wind action I Introduction II Loess Ill Dunes IV Niveo-eolian deposits and forms V Deflation VI Ventifacts 12 Thermokarst I Introduction II Collapsed pingos Ill Thaw slumps IV Linear and polygonal troughs V Beaded drainage VI Thaw lakes VII Alases 13 Environmental overview 14 Environmental reconstructions I Introduction II Britain Ill Continental Europe IV USSR V Japan VI North America VII Southern Hemisphere VIII Some estimated temperature changes References Index

Note: Enthaltene Kapitel sind: Chapter 1 Laminar and turbulent flows Chapter 3 Reynolds equations and the semiempirical theories of turbulence Chapter 4 Turbulence in a thermally stratified medium

Note: I. Nature and Formation of Oceanic Lithosphere --- Magma Chambers: Products and Processes --- J. A. Orcutt, M. Burnett, and J. S. McClain: Evolution of the ocean crust: results from recent seismic experiments / Geological Society, London, Special Publications, 13:7-16, doi:10.1144/GSL.SP.1984.013.01.01 --- M. R. Fisk: Depths and temperatures of mid-ocean-ridge magma chambers and the composition of their source magmas / Geological Society, London, Special Publications, 13:17-23, doi:10.1144/GSL.SP.1984.013.01.02 --- M. F. J. Flower: Spreading-rate parameters in ocean crust: analogue for ophiolite? / Geological Society, London, Special Publications, 13:25-40, doi:10.1144/GSL.SP.1984.013.01.03 --- J. D. Smewing, N. I. Christensen, I. D. Bartholomew, and P. Browning: The structure of the oceanic upper mantle and lower crust as deduced from the northern section of the Oman ophiolite / Geological Society, London, Special Publications, 13:41-53, doi:10.1144/GSL.SP.1984.013.01.04 --- R. T. Gregory: Melt percolation beneath a spreading ridge: evidence from the Semail peridotite, Oman / Geological Society, London, Special Publications, 13:55-62, doi:10.1144/GSL.SP.1984.013.01.05 --- J. S. Pallister: Parent magmas of the Semail ophiolite, Oman / Geological Society, London, Special Publications, 13:63-70, doi:10.1144/GSL.SP.1984.013.01.06 --- P. Browning: Cryptic variation within the Cumulate Sequence of the Oman ophiolite: magma chamber depth and petrological implications / Geological Society, London, Special Publications, 13:71-82, doi:10.1144/GSL.SP.1984.013.01.07 --- D. Elthon, J. F. Casey, and S. Komor: Cryptic mineral-chemistry variations in a detailed traverse through the cumulate ultramafic rocks of the North Arm Mountain massif of the Bay of Islands ophiolite, Newfoundland / Geological Society, London, Special Publications, 13:83-97, doi:10.1144/GSL.SP.1984.013.01.08 --- Fracture Zones --- R. S. White: Atlantic oceanic crust: seismic structure of a slow-spreading ridge / Geological Society, London, Special Publications, 13:101-111, doi:10.1144/GSL.SP.1984.013.01.09 --- J. M. Auzende, G. Ceuleneer, G. Cornen, T. Juteau, Y. Lagabrielle, G. Lensch, C. Mevel, A. Nicolas, H. Prichard, A. Ribeiro, E. Ruellan, and J. R. Vanney: Intraoceanic tectonism on the Gorringe Bank: observations by submersible / Geological Society, London, Special Publications, 13:113-120, doi:10.1144/GSL.SP.1984.013.01.10 --- J. Honnorez, C. Mevel, and R. Montigny: Occurrence and significance of gneissic amphibolites in the Vema fracture zone, equatorial Mid-Atlantic Ridge / Geological Society, London, Special Publications, 13:121-130, doi:10.1144/GSL.SP.1984.013.01.11 --- J. A. Karson: Variations in structure and petrology in the Coastal Complex, Newfoundland: anatomy of an oceanic fracture zone / Geological Society, London, Special Publications, 13:131-144, doi:10.1144/GSL.SP.1984.013.01.12 --- Mantle Structures --- A. Nicolas and M. Rabinowicz: Mantle flow pattern at oceanic spreading centres: relation with ophiolitic and oceanic structures / Geological Society, London, Special Publications, 13:147-151, doi:10.1144/GSL.SP.1984.013.01.13 --- Lavas and Sediments --- J. Malpas and G. Langdon: Petrology of the Upper Pillow Lava suite, Troodos ophiolite, Cyprus / Geological Society, London, Special Publications, 13:155-167, doi:10.1144/GSL.SP.1984.013.01.14 --- J. F. Boyle and A. H. F. Robertson: Evolving metallogenesis at the Troodos spreading axis / Geological Society, London, Special Publications, 13:169-181, doi:10.1144/GSL.SP.1984.013.01.1--- Isotope Studies & Metamorphism --- D. Elthon, J. R. Lawrence, R. E. Hanson, and C. Stern: Modelling of oxygen-isotope data from the Sarmiento ophiolite complex, Chile / Geological Society, London, Special Publications, 13:185-197, doi:10.1144/GSL.SP.1984.013.01.16 --- D. S. Stakes, H. P. Taylor , jr, and R. L. Fisher: Oxygen-isotope and geochemical characterization of hydrothermal alteration in ophiolite complexes and modern oceanic crust / Geological Society, London, Special Publications, 13:199-214, doi:10.1144/GSL.SP.1984.013.01.17 --- M. J. Thirlwall and B. J. Bluck: Sr-Nd isotope and chemical evidence that the Ballantrae ‘ophiolite’, SW Scotland, is polygenetic / Geological Society, London, Special Publications, 13:215-230, doi:10.1144/GSL.SP.1984.013.01.18 --- M. A. Menzies: Chemical and isotopic heterogeneities in orogenic and ophiolitic peridotites / Geological Society, London, Special Publications, 13:231-240, doi:10.1144/GSL.SP.1984.013.01.19 --- Zulfiqar Ahmed and A. Hall: Petrology and mineralization of the Sakhakot-Qila ophiolite, Pakistan / Geological Society, London, Special Publications, 13:241-252, doi:10.1144/GSL.SP.1984.013.01.20 --- II. Emplacement (Obduction) of Ophiolites --- Ophiolite Emplacement and Obduction --- J. G. Spray: Possible causes and consequences of upper mantle decoupling and ophiolite displacement / Geological Society, London, Special Publications, 13:255-268, doi:10.1144/GSL.SP.1984.013.01.21 --- J. F. Casey and J. F Dewey: Initiation of subduction zones along transform and accreting plate boundaries, triple-junction evolution, and forearc spreading centres—implications for ophiolitic geology and obduction / Geological Society, London, Special Publications, 13:269-290, doi:10.1144/GSL.SP.1984.013.01.22 --- Y. Ogawa and J. Naka: Emplacement of ophiolitic rocks in forearc areas: Examples from central Japan and Izu-Mariana-Yap island arc system / Geological Society, London, Special Publications, 13:291-301, doi:10.1144/GSL.SP.1984.013.01.23 --- M. P. Searle and R. K. Stevens: Obduction processes in ancient, modern and future ophiolites / Geological Society, London, Special Publications, 13:303-319, doi:10.1144/GSL.SP.1984.013.01.24 --- N. H. Woodcock and A. H. F. Robertson: The structural variety in Tethyan ophiolite terrains / Geological Society, London, Special Publications, 13:321-330, doi:10.1144/GSL.SP.1984.013.01.25 --- Regional Studies --- H. Colley: An ophiolite suite in Fiji? / Geological Society, London, Special Publications, 13:333-340, doi:10.1144/GSL.SP.1984.013.01.26 --- H. L. Davies and A. L. Jaques: Emplacement of ophiolite in Papua New Guinea / Geological Society, London, Special Publications, 13:341-349, doi:10.1144/GSL.SP.1984.013.01.27 --- J. S. Milsom: The gravity field of the Marum ophiolite complex, Papua New Guinea / Geological Society, London, Special Publications, 13:351-357, doi:10.1144/GSL.SP.1984.013.01.28 --- R. G. Coleman: Ophiolites and the tectonic evolution of the Arabian Peninsula / Geological Society, London, Special Publications, 13:359-366, doi:10.1144/GSL.SP.1984.013.01.29 --- G. Wadge, G. Draper, and J. F. Lewis: Ophiolites of the northern Caribbean: A reappraisal of their roles in the evolution of the Caribbean plate boundary / Geological Society, London, Special Publications, 13:367-380, doi:10.1144/GSL.SP.1984.013.01.30 --- B. A. Sturt, H. Furnes, and D. Roberts: A conspectus of Scandinavian Caledonian ophiolites / Geological Society, London, Special Publications, 13:381-391, doi:10.1144/GSL.SP.1984.013.01.31 --- R. Hall: Ophiolites: Figments of Oceanic Lithosphere? / Geological Society, London, Special Publications, 13:393-403, doi:10.1144/GSL.SP.1984.013.01.32 --- D. A. Rothery: The role of Landsat Multispectral Scanner (MSS) imagery in mapping the Oman ophiolite / Geological Society, London, Special Publications, 13:405-413, doi:10.1144/GSL.SP.1984.013.01.33

Note: N.F. entfällt ab 57.2000. - Volltext auch als Teil einer Datenbank verfügbar , Ersch. ab 2000 in engl. Sprache mit dt. Hauptsacht.

Note: 1. Introduction --- Robin Nicholson: Caledonian correlations: Britain and Scandinavia / Geological Society, London, Special Publications, 8:3-18, doi:10.1144/GSL.SP.1979.008.01.01 Anthony K. Higgins and W. E. Adrian Phillips: East Greenland Caledonides—an extension of the British Caledonides / Geological Society, London, Special Publications, 8:19-32, doi:10.1144/GSL.SP.1979.008.01.02 M. J. Kennedy: The continuation of the Canadian Appalachians into the Caledonides of Britain and Ireland / Geological Society, London, Special Publications, 8:33-64, doi:10.1144/GSL.SP.1979.008.01.03 2. Basement-Cover Relationships: Map: Basement-Cover Relationships / Geological Society, London, Special Publications, 8:67-91, doi:10.1144/GSL.SP.1979.008.01.04 David Bamford: Seismic constraints on the deep geology of the Caledonides of northern Britain / Geological Society, London, Special Publications, 8:93-96, doi:10.1144/GSL.SP.1979.008.01.06 Ian S. Sanders: Observations on eclogite- and granulite-facies rocks in the basement of the Caledonides / Geological Society, London, Special Publications, 8:97-100, doi:10.1144/GSL.SP.1979.008.01.07 Paul A. Rathbone and Anthony L. Harris: Basement-cover relationships at Lewisian inliers in the Moine rocks / Geological Society, London, Special Publications, 8:101-107, doi:10.1144/GSL.SP.1979.008.01.08 Derek Flinn, P. L. Frank, Maureen Brook, and I. R. Pringle: Basement-cover relations in Shetland / Geological Society, London, Special Publications, 8:109-115, doi:10.1144/GSL.SP.1979.008.01.09 G. S. Johnstone, Jane Plant, and Janet V. Watson: Regional geochemistry of the Northern Highlands of Scotland / Geological Society, London, Special Publications, 8:117-128, doi:10.1144/GSL.SP.1979.008.01.10 Martin Brewer, Maureen Brook, and Derek Powell: Dating of the tectono-metamorphic history of the southwestern Moine, Scotland / Geological Society, London, Special Publications, 8:129-137, doi:10.1144/GSL.SP.1979.008.01.11 - M. A. J. Piasecki and O. van Breemen: The ‘Central Highland Granulites’: cover-basement tectonics in the Moine / Geological Society, London, Special Publications, 8:139-144, doi:10.1144/GSL.SP.1979.008.01.12 Donald M. Ramsay and Brian A. Sturt: The status of the Banff nappe / Geological Society, London, Special Publications, 8:145-151, doi:10.1144/GSL.SP.1979.008.01.13 Charles Barry Long and Bruce William Yardley: The distribution of pre-Caledonian basement in the Ox Mountains inlier, Ireland / Geological Society, London, Special Publications, 8:153-156, doi:10.1144/GSL.SP.1979.008.01.14 - P. S. Kennan, W. E. A. Phillips, and P. Strogen: Pre-Caledonian basement to the paratectonic Caledonides in Ireland / Geological Society, London, Special Publications, 8:157-161, doi:10.1144/GSL.SP.1979.008.01.15 3. Tectonics --- M. R. W. Johnson, D. J. Sanderson, and N. J. Soper: Deformation in the Caledonides of England, Ireland and Scotland / Geological Society, London, Special Publications, 8:163-186, doi:10.1144/GSL.SP.1979.008.01.17 M. P. Coward and A. W. B. Siddans: The tectonic evolution of the Welsh Caledonides / Geological Society, London, Special Publications, 8:187-198, doi:10.1144/GSL.SP.1979.008.01.18 J. L. Roberts and J. E. Treagus: Stratigraphical and structural correlation between the Dalradian rocks of the SW and Central Highlands of Scotland / Geological Society, London, Special Publications, 8:199-204, doi:10.1144/GSL.SP.1979.008.01.19 Peter R. Thomas: New evidence for a Central Highland Root Zone / Geological Society, London, Special Publications, 8:205-211, doi:10.1144/GSL.SP.1979.008.01.20 H. J. Bradbury, A. L. Harris, and R. A. Smith: Geometry and emplacement of nappes in the Central Scottish Highlands / Geological Society, London, Special Publications, 8:213-220, doi:10.1144/GSL.SP.1979.008.01.21 Ben Harte: The Tarfside succession and the structure and stratigraphy of the eastern Scottish Dalradian rocks / Geological Society, London, Special Publications, 8:221-228, doi:10.1144/GSL.SP.1979.008.01.22 Graham J. Borradaile: Pre-tectonic reconstruction of the Islay anticline: implications for the depositional history of Dalradian rocks in the SW Highlands / Geological Society, London, Special Publications, 8:229-238, doi:10.1144/GSL.SP.1979.008.01.23 D. H. W. Hutton: Dalradian structure in the Creeslough area, NW Donegal, Ireland / Geological Society, London, Special Publications, 8:239-241, doi:10.1144/GSL.SP.1979.008.01.24 Peter William Geoffrey Tanner and Robert Milner Shackleton: Structure and stratigraphy of the Dalradian rocks of the Bennabeola area, Connemara, Eire / Geological Society, London, Special Publications, 8:243-256, doi:10.1144/GSL.SP.1979.008.01.25 W. E. A. Phillips, A. M. Flegg, and T. B. Anderson: Strain adjacent to the Iapetus suture in Ireland / Geological Society, London, Special Publications, 8:257-262, doi:10.1144/GSL.SP.1979.008.01.26 T. B. Anderson and T. D. J. Cameron: A structural profile of Caledonian deformation in Down / Geological Society, London, Special Publications, 8:263-267, doi:10.1144/GSL.SP.1979.008.01.27 Martin H. Eales: Structure of the Southern Uplands of Scotland / Geological Society, London, Special Publications, 8:269-273, doi:10.1144/GSL.SP.1979.008.01.28 Thomas J. Kelly and Michael D. Max: A strain section across part of the Caledonian orogen in W Ireland / Geological Society, London, Special Publications, 8:275-280, doi:10.1144/GSL.SP.1979.008.01.29 Patrick M. Shannon: The tectonic evolution of the lower Palaeozoic rocks of extreme SE Ireland / Geological Society, London, Special Publications, 8:281-285, doi:10.1144/GSL.SP.1979.008.01.30 Lindsay M. Parson: The state of strain adjacent to the Great Glen fault / Geological Society, London, Special Publications, 8:287-289, doi:10.1144/GSL.SP.1979.008.01.31 J. R. Mendum: Caledonian thrusting in NW Scotland / Geological Society, London, Special Publications, 8:291-297, doi:10.1144/GSL.SP.1979.008.01.32 Robert Milner Shackleton: The British Caledonides: comments and summary / Geological Society, London, Special Publications, 8:299-304, doi:10.1144/GSL.SP.1979.008.01.33 4. Metamorphism --- D. J. Fettes: A metamorphic map of the British and Irish Caledonides / Geological Society, London, Special Publications, 8:305-321, doi:10.1144/GSL.SP.1979.008.01.35 Ben Harte and Neil F. C. Hudson: Pelite facies series and the temperatures and pressures of Dalradian metamorphism in E Scotland / Geological Society, London, Special Publications, 8:323-337, doi:10.1144/GSL.SP.1979.008.01.36 P. R. A. Wells and S. W. Richardson: Thermal evolution of metamorphic rocks in the Central Highlands of Scotland / Geological Society, London, Special Publications, 8:339-344, doi:10.1144/GSL.SP.1979.008.01.37 J. A. Winchester and K. H. Whittles: The pattern of three-dimensional metamorphism in the Killin area, Inverness-shire: a direct method of determining the thickness of metamorphic zones in the Caledonides / Geological Society, London, Special Publications, 8:345-349, doi:10.1144/GSL.SP.1979.008.01.38 Harry J. Bradbury: Migmatisation, deformation and porphyroblast growth in the Dalradian of Tayside, Scotland / Geological Society, London, Special Publications, 8:351-356, doi:10.1144/GSL.SP.1979.008.01.39 J. R. Ashworth: Textural and mineralogical evolution of migmatites / Geological Society, London, Special Publications, 8:357-361, doi:10.1144/GSL.SP.1979.008.01.40 R. St J. Lambert, J. A. Winchester, and J. G. Holland: Time, space and intensity relationships of the Precambrian and lower Palaeozoic metamorphisms of the Scottish Highlands / Geological Society, London, Special Publications, 8:363-367, doi:10.1144/GSL.SP.1979.008.01.41 Bruce W. D. Yardley, C. Barry Long, and Michael D. Max: Patterns of metamorphism in the Ox Mountains and adjacent parts of Western Ireland / Geological Society, London, Special Publications, 8:369-374, doi:10.1144/GSL.SP.1979.008.01.42 B

Note: Introduction / Charles E. Chapin and Wolfgang E. Elston References cited Ash-flow magmatism / Robert L. Smith Abstract Introduction Volumes of ash-flow sheets Size of magma chambers Zoned magma chambers Crater Lake, Oregon Bandelier Tuff, New Mexico SiO₂ and phenocryst variation in ash-flow sheets Periodicity-volume-composition relationships Discussion of model Summary and conclusions Acknowledgments References cited Cooling units and composite sheets in relation to caldera structure / Robert L. Christiansen Abstract Introduction Examples of ash-flow-caldera relations Mazama eruption and Crater Lake caldera Bandelier Tuff and Valles-Toledo calderas Thirsty Canyon Tuff and Black Mountain caldera Timber Mountain-Oasis Valley caldera complex Yellowstone Plateau volcanic field General pattern of ash-flow-caldera relations Acknowledgments References cited The Bishop Tuff: Evidence for the origin of compositional zonation in silicic magma chambers / Wes Hildreth Abstract Introduction Eruptive sequence Major units Units of uncertain correlation Summary of eruptive sequence Eruptive temperatures Accuracy and precision of T-fₒ₂ data Mineralogy Fe-Ti oxides Quartz Sanidine Plagioclase Biotite Pyroxenes Allanite Zircon Apatite Pyrrhotite Whole-rock chemistry Major elements Trace elements Compositional gaps Origin of the compositional zonation Crystal settling Assimilation Basaltic underplating Liquid immiscibility Progressive partial melting Trace elements during partial melting Convection-driven thermogravitational diffusion Lines of evidence Concluding remarks Acknowledgments References cited Rare-earth-element content of some highly differentiated ash-flow tuffs and lavas / Donald C. Noble, Ward L. Rigot, and Harry R. Bowman Abstract Introduction Specimens studied and methods of chemical analysis Results and discussion Acknowledgments References cited Geochemistry of the Los Chocoyos Ash, Quezaltenango Valley, Guatemala / William I. Rose, Jr., Norman K. Grant, and John Easter Abstract Introduction Field description Geochemistry Mineralogy and mineral chemistry Sr-isotope data Modeling of crystal fractionation Time required for crystal fractionation Conclusions Acknowledgments Appendix 1. Analytical methods References cited Geochemical correlation of genetically related rhyolitic ash-flow and air-fall ashes, central and western Guatemala and the equatorial Pacific / Gregory A. Hahn, William I. Rose, Jr., and Thomas Meyers Abstract Introduction Previous investigations of chemical fingerprinting The Los Chocoyos Ash and the stratigraphic sequence of the San Cristobal Group Characteristics of the ash-flow member Sample acquisition and preparation Trace-element analyses Chemical correlation Lateral chemical variations Source of the Los Chocoyos Ash Age of the Los Chocoyos Ash Conclusions Acknowledgments References cited Ignimbrites of the Sierra Madre Occidental and their relation to the tectonic history of western Mexico / Fred W. McDowell and Stephen E. Clabaugh Abstract Introduction Volcanic stratigraphy of the Sierra Madre Occidental Pre-Cretaceous volcanic rocks Lower volcanic complex Unconformity between the igneous sequences Upper volcanic supergroup Calderas of the upper volcanic supergroup Structure of the Sierra Madre Occidental Chemistry Tectonic relationships Acknowledgments References cited Emplacement of pyroclastic flows: A review / Michael F. Sheridan Abstract Introduction Eruptions Observed pyroclastic flows Theoretical eruption models Mobility Topographic barriers Energy line Deposits Morphology Depositional sequence Textures Large clasts Deflation Compositional variation Welded peralkaline ignimbrites Emplacement temperatures Models Fluidization Speculation Summary Acknowledgments References cited Primary and secondary flow structures in ash-flow tuffs of the Gribbles Run paleovalley, central Colorado / Charles E. Chapin and Gary R. Lowell Abstract Introduction Paleovalleys and the Wall Mountain Tuff Primary flow structures Gas cavities (lenticules) Lineation Foliation Primary folds Rotated lithic fragments Imbricated crystals Secondary now structures Secondary folds and growth faults Tension cracks Miscellaneous structures Steam spiracles Conclusions Acknowledgments References cited Welded air-fall tuffs / R.S.J. Sparks and J. V. Wright Abstract Introduction Field relationships Santorini, Greece The 1875 Askja welded tuffs, Iceland Other examples Petrology and chemistry Grain-size studies Santorini welded tuffs Askja welded tuff Compaction and welding Strain, bulk density, and porosity measurements Results for Santorini welded tuffs Results for Askja welded tuff Discussion Acknowledgments References cited Globule ignimbrite of Mount Suswa, Kenya / R. L. Hay, W. Hildreth, and R. N. Lambe Abstract Introduction Scope and purpose of study Geologic setting and previous work Description and field relationships Ignimbrite petrography Vitric materials Crystals and rock fragments Devitrification and gas-phase crystallization Low-temperature alteration Nature of lower ignimbrite sheet Nature of the magma Chemical composition Temperature and viscosity Emplacement of ignimbrite and origin of globules Acknowledgments References cited A model of pyroclastic surge / K. H. Wohletz and M. F. Sheridan Abstract Introduction Terminology Objectives and methods of study Deposits Bed forms Locations Results Pyroclastic-surge facies Discussion and conclusions Development of bed forms Reconstruction of the surge cloud A model of pyroclastic surge: Its fluidization and deflation Acknowledgments References cited Significance of the flattening of pumice fragments in ash-flow tuffs / Donald W. Peterson Abstract Introduction Pumice fragments in the Apache Leap Tuff Recognition and description of pumice fragments Flattening of the pumice Applications of the flattening studies Recognition of cooling units Implications of extreme flattening Determination of stratigraphic level and fault displacement Commercial application of flattening ratios Determination of the degree of welding Pumice flattening as a possible guide to relative temperature of emplacement and rate of accumulation Conclusions Acknowledgments References cited Ash-flow sheets and calderas: Their genetic relationship to ore deposits in Nevada / Edwin H. McKee Abstract Introduction Metal deposits in volcanic-tectonic systems Resurgent cauldrons Geologic setting Parameters of study Distribution of mines and ash-flow sheets Distribution of mines and calderas Discussion Acknowledgments References cited