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  • 1
    Online Resource
    Online Resource
    Amsterdam :Elsevier Science & Technology,
    Keywords: Expanding earth. ; Electronic books.
    Description / Table of Contents: Developments in Geotectonics, 10: The Expanding Earth focuses on the principles, methodologies, transformations, and approaches involved in the expanding earth concept. The book first elaborates on the development of the expanding earth concept, necessity for expansion, and the subduction myth. Discussions focus on higher velocity under Benioff zone, seismic attenuation, blue schists and paired metamorphic belts, dispersion of polygons, arctic paradox, and kinematic contrast. The manuscript then ponders on the scale of tectonic phenomena, non-uniformitarianism, tectonic profiles, and paleomagnetism. Concerns cover global paleomagnetism, general summary of the tectonic profile, implosions, fluid pressures, pure shear, crustal extension, simple shear with horizontal axis, geological examples of scale fields, and length-time fields of deformation. The publication explores the cause of expansion, modes of crustal extension, and rotation and asymmetry of the earth, including dynamic asymmetry, precessions, nutations, librations, and wobbles at fixed obliquity, variation of rate of rotation, and categories of submarine ridges. The text is a dependable source of data for researchers wanting to study the concept of expanding earth.
    Type of Medium: Online Resource
    Pages: 1 online resource (499 pages)
    Edition: 1st ed.
    ISBN: 9781483289557
    Series Statement: Issn Series ; v.Volume 10
    DDC: 551
    Language: English
    Note: Front Cover -- The Expanding Earth -- Copyright Page -- Table of Contents -- PARI I: INTRODUCTORY REVIEW -- CHAPTER 1. FACE OF THE EARTH -- Suess -- Wegener -- The orocline concept -- Decades in contempt -- The primary rift system -- A shotgun wedding -- Kuhnian revolution -- A new round of red-herrings -- CHAPTER 2. DEVELOPMENT OF EXPANDING EARTH CONCEPT -- CHAPTER 3. NECESSITY FOR EXPANSION -- Gaping gores -- Hierarchy of extension -- Dispersion of polygons -- The Pacific paradox -- The Arctic paradox -- The young oceans -- CHAPTER 4. THE SUBDUCTION MYTH -- Two false axioms -- Trenches are not where they should be -- Which side moves? -- Trench sediments are not deformed as they should be -- Trench sediments do not go into orogens -- No Moho bend oceanward from trench -- Continents are welded to their own mantle -- Universal tension -- All motion is up behind the trench -- Kinematic contrast -- Orogenic and metamorphic energies do not fit -- Blue schists and paired metamorphic belts -- Seismic misinterpretation -- Seismic attenuation -- Higher velocity under Benioff zone -- CHAPTER 5. DEFINITIONS -- Oroclines -- Coupled oroclines -- Rhombochasm -- Sphenochasm -- Sphenopiezm -- Orotath -- Oroclinotath -- Nematath -- Megashear -- Restrictions -- Philosophy of orocline concept -- PART II: SOME PRINCIPLES -- CHAPTER 6. SCALE OF TECTONIC PHENOMENA -- Length-time fields of deformation -- Geological examples of scale fields -- Experimental tectonics -- Other Planets -- CHAPTER 7. NON-UNIFORMITARIANISM -- Kinds of change -- Non-uniform parameters -- Non-uniform expression -- Non-uniformitarianism - retrospect -- CHAPTER 8. TECTONIC PROFILE -- Local hydrostatic stress -- Crustal extension -- Pure shear -- Simple shear with vertical axis -- Fluid pressures -- Failure at the free surface -- Simple shear with horizontal axis -- Explosions -- Implosions. , Departure from isostatic equilibrium -- Global hydrostatic state -- General summary of the tectonic profile -- CHAPTER 9. PALAEOMAGNETISM -- Review -- Abortive attempts to measure palaeoradius -- Global palaeomagnetism require expansion -- Palaeomagnetism confirms orocline tectonics -- CHAPTER 10. ASYMMETRY OF THE EARTH -- Asymmetry of figure -- Geophysical asymmetry -- Dynamic asymmetry -- Summary of asymmetries -- Asymmetry is normal -- Control and constraints of asymmetry -- CHAPTER 11. ROTATION OF THE EARTH -- Nomenclature -- Precessions, nutations, librations and wobbles, at fixed obliquity -- Variation of obliquity -- Variation of rate of rotation -- Variation of period of revolution -- CHAPTER 12. MODES OF CRUSTAL EXTENSION -- Cambium ridges -- Whaleback tumours -- Deckenschrund ridges -- Dyke swarms -- Categories of submarine ridges -- PART III: REGIONAL -- CHAPTER 13. WESTERN NORTH AMERICA -- Tectonic Setting -- The San Andreas system -- Mendocino and Idaho oroclines -- Basin-and-range -- Cascadan Province -- CHAPTER 14. CENTRAL AMERICA -- Tectonic control -- Constraints on reconstruction -- Regional tectonics -- CHAPTER 15. SOUTH-EAST ASIA -- The Ninetyeast ridge -- Asia-Australia reconstruction -- Tectonic zones of South-East Asia -- India and Malay Peninsula -- Australia and India -- The WA-TIM-EC rift -- Wallace's line -- India-Gondwana paradox -- CHAPTER 16. THE RIFT OCEANS -- PART IV: RETROSPECT -- CHAPTER 17. TESTS -- CHAPTER 18. CAUSE OF EXPANSION -- Philosophy -- What causes the earth to expand? -- Phase change at constant mass -- Secular decrease in G -- Secular increase in mass -- Secular change of e/m -- Universal null -- PART V: -- ACKNOWLEDGEMENT -- REFERENCES -- INDEX.
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of volcanology 57 (1995), S. 18-32 
    ISSN: 1432-0819
    Keywords: Ash Zone 1 ; Katla volcano ; Sólheimar ignimbrite ; Co-ignimbrite ash ; Volcaniclastic turbidites ; Pyroclastic flows ; Jökulhlaup
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Geochemical evidence shows that the silicic component of the widespread Ash Zone 1 in the North Atlantic is derived from a major ignimbrite-forming eruption which occurred at the Katla caldera in southern Iceland during the transition from glacial to interglacial conditions in Younger Dryas time. Both trace and major element evidence of the rhyolitic products excludes the Öræfajökull volcano as a source. The high-Ti basaltic component in the marine ash zone can also be attributed to contemporaneous eruption in the Katla volcanic complex. Dispersal of tephra from this event is primarily attributed to the generation of co-ignimbrite ash columns in the atmosphere, with ash fallout on both sea ice and on the ocean floor north and east of Iceland. Owing to the changing ocean circulation characteristics of the glacial regime, including suppression of the Irminger Current and a stronger North Atlantic Current, tephra was rafted on sea ice south into the central North Atlantic and deposited as dispersed Ash Zone 1. Sediments south of Iceland also show evidence of the formation of ash turbidites, generated either by the entrance of pyroclastic flows into the sea, or during discharge of jökulhlaups or glacier bursts from this subglacial eruption.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of volcanology 57 (1995), S. 18-32 
    ISSN: 1432-0819
    Keywords: Key words Ash Zone 1 ; Katla volcano ; Sólheimar ignimbrite ; Co-ignimbrite ash ; Volcaniclastic turbidites ; Pyroclastic flows ; Jökulhlaup
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract   Geochemical evidence shows that the silicic component of the widespread Ash Zone 1 in the North Atlantic is derived from a major ignimbrite-forming eruption which occurred at the Katla caldera in southern Iceland during the transition from glacial to interglacial conditions in Younger Dryas time. Both trace and major element evidence of the rhyolitic products excludes the Öræfajökull volcano as a source. The high-Ti basaltic component in the marine ash zone can also be attributed to contemporaneous eruption in the Katla volcanic complex. Dispersal of tephra from this event is primarily attributed to the generation of co-ignimbrite ash columns in the atmosphere, with ash fallout on both sea ice and on the ocean floor north and east of Iceland. Owing to the changing ocean circulation characteristics of the glacial regime, including suppression of the Irminger Current and a stronger North Atlantic Current, tephra was rafted on sea ice south into the central North Atlantic and deposited as dispersed Ash Zone 1. Sediments south of Iceland also show evidence of the formation of ash turbidites, generated either by the entrance of pyroclastic flows into the sea, or during discharge of jökulhlaups or glacier bursts from this sub-glacial eruption.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
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