Schlagwort(e):
Plate tectonics.
;
Geology, Stratigraphic -- Precambrian.
;
Electronic books.
Beschreibung / Inhaltsverzeichnis:
Precambrian Plate Tectonics.
Materialart:
Online-Ressource
Seiten:
1 online resource (805 pages)
Ausgabe:
1st ed.
ISBN:
9780080869032
Serie:
Issn Series ; v.Volume 4
URL:
https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=413755
DDC:
551.71
Sprache:
Englisch
Anmerkung:
Front Cover -- Precambrian Plate Tectonics -- Copyright Page -- Contents -- Foreword -- Introduction -- Contributing Authors -- Part 1: General reviews of Precambrian crustal evolution -- CHAPTER 1. PRECAMBRIAN ROCKS IN THE LIGHT OF THE PLATE- TECTONIC CONCEPT -- Abstract -- Introduction -- The heat factor -- Palaeomagnetism -- Archaean crustal evolution -- Early-mid-Proterozoic geosynclines, mobile belts and plate collisions -- Mid-Proterozoic rifting and magmatism -- Grenville-Dalslandian mobile belt -- The Pan-African-Braziliano mobile belts -- Precambrian plate tectonics -- References -- CHAPTER 2. PRECAMBRIAN TECTONIC STYLE: A LIBERAL UNIFORMITARIAN INTERPRETATION -- Abstract -- Introduction -- Major uncertainties in Precambrian synthesis -- Thermal history of the earth -- Continental accretion -- Precambrian tectonic style -- Constraining assumptions -- Contemporary geodynamics -- Scale of mantle convection -- Heat flow -- Plate-driving force -- Buoyancy -- Implications for the Precambrian -- Buoyancy-powered plate tectonics -- Subduction by viscous drag -- Evolution of the protocrust -- Onset of negative buoyancy -- Intracontinental orogeny -- Crustal thickening -- Summary -- Geologic evidence -- Pre-Archaean -- Archaean -- Proterozoic -- Commentary -- Acknowledgements -- References -- CHAPTER 3. PRECAMBRIAN PLATE TECTONICS -- Abstract -- Introduction. -- The Archaean (> -- 2.5 Ga) -- Archaean plate tectonics - dominance of rifting and sag-subduction. -- The Lower Proterozoic (2.5-1.2 Ga). -- Lower Proterozoic plate tectonics-dominance of A-subduction and intraplate shearing -- The Upper Proterozoic (1.2 - 0.6 Ga) -- Upper Proterozoic tectonics - transition to contemporary plate interaction -- Conclusions -- Acknowledgements -- References -- CHAPTER 4. UNIFORMITARIAN ASSUMPTIONS, PLATE TECTONICS AND THE PRECAMBRIAN EARTH -- Abstract.
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The uniformitarian doctrine -- Methodological problems in earth science. -- Possible relevance of plate tectonics to Precambrian history. -- Ophiolites -- Two-stage mantle melting products. -- Lateral accretion. -- Palaeomagnetic evidence and Precambrian geotectonics -- Temporally unique Precambrian features -- Acknowledgements -- References. -- Part 2: Archaean tectonics -- CHAPTER 5. ARCHAEAN PLATES AND GREENSTONE BELTS -- Abstract -- Introduction. -- Greenstone belts. -- Peninsular India -- Setting -- Lithostratigraphy -- Geochronology -- Tectonic development -- Southern Africa: Rhodesian and Kaapvaal cratons -- Setting -- Lithostratigraphy -- Geochronology -- Tectonic development -- Western Australia: Yilgarn subprovince -- Setting -- Lithostratigraphy -- Geochronology -- Tectonic development -- Canadian Shield: southern Superior Province -- Setting -- Lithostratigraphy -- Geochronology -- Tectonic development -- Summary -- Archaean plates -- References -- CHAPTER 6. GEOTECTONIC EVOLUTION OF THE ARCHAEAN SUCCESSIONS IN THE BARBERTON MOUNTAIN LAND, SOUTH AFRICA -- Abstract -- Introduction -- The primordial earth's crust -- The Archaean crust of southern Africa -- The Barberton Mountain Land -- Towards an evolutionary model -- Summary -- Acknowledgements -- References -- CHAPTER 7. THE EVOLUTION OF THE RHODESIAN CRATON AND ADJACENT ARCHAEAN TERRAIN: TECTONIC MODELS -- Abstract -- Introduction -- Stratigraphic summary -- Relationship between the Rhodesian craton and the Limpopo mobile belt -- Constraints on tectonic models -- Tectonic models -- Conclusions -- Acknowledgements -- References -- CHAPTER 8. THE TECTONIC DEVELOPMENT OF THE LIMPOPO MOBILE BELT AND THE EVOLUTION OF THE ARCHAEAN CRATONS OF SOUTHERN AFRICA1 -- Abstract -- Introduction -- The Limpopo Mobile Belt -- Morphology and lithology -- Gravity and magnetic character -- Metamorphism.
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Deformational history -- Chronology -- A plate-tectonic model -- Implications for crustal evolution of southern Africa -- Conclusion -- Acknowledgements -- References -- CHAPTER 9. ARCHAEAN BASIN EVOLUTION IN THE SLAVE PROVINCE, CANADA -- Abstract -- Introduction -- The Slave Structural Province -- Supracrustal rocks-the Yellowknife Supergroup -- Volcanic rocks -- Sedimentary rocks -- Basement -- Geochronology -- Origin and extent of Yellowknife supracrustal basins -- Evidence of plate tectonics in the Slave Province during the Archaean -- Acknowledgements -- References -- CHAPTER 10. TECTONICS AND PETROGENESIS OF EARLY PRECAMBRIAN COMPLEXES OF THE ALDAN SHIELD, SIBERIA -- Abstract -- Introduction -- Stratigraphy -- Gneiss-granulite basement -- Greenstone and schist belts -- Geochronology -- Petrogenesis -- Tectonics -- Crustal development -- Conclusions -- References -- Part 3: Lower to middle Proterozoic tectonics -- CHAPTER 11. PROTEROZOIC CHRONOLOGY AND EVOLUTION OF THE MIDCONTINENT REGION, NORTH AMERICA -- Abstract -- Introduction -- Geochronologic data -- Continental and tectonic setting -- Early Proterozoic terranes (2500-1600 Ma) -- Penokean region -- Archaean basement -- Pre-Penokean Proterozoic rocks -- Penokean orogenic rocks -- Post-Penokean rocks -- Western United States -- Midcontinent region -- Middle Proterozoic rocks of the midcontinent -- Undeformed plutonic rocks -- Granite-rhyolite terrane of the south-central United States -- Discussion -- Regional correlations of early Proterozoic terranes -- Origin of the early Proterozoic orogenic belts -- Origin of the middle Proterozoic granite-rhyolite terrane and undeformed plutons -- Conclusions -- Acknowledgements -- References -- CHAPTER 12. THE CIRCUM-SUPERIOR BELT: A PROTEROZOIC PLATE MARGIN? -- Abstract -- Introduction -- Elements of the Cirum-Superior Belt -- General.
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Labrador Trough -- Southern Labrador Trough -- The Mistassini-Otish Groups -- The Cape Smith Belt -- The Belcher Basin -- Sutton Inlier -- The Fox River Belt -- Thompson Nickel Belt -- Molson Dykes -- Lake Superior Association -- Correlation within the Circum-Superior Belt -- General -- Stratigraphic relationships -- Magmatic relationships -- Tectonic considerations -- Conclusions -- Acknowledgements -- References -- CHAPTER 13. LABRADOR GEOSYNCLINE: TYPE EXAMPLE OF EARLY PROTEROZOIC CRATONIC REACTIVATION -- Abstract -- Introduction -- The geosynclinal filling -- Sedimentary environments and provenance -- Volcanic rocks -- Structure and metamorphism -- Autochthonous position of basalts -- Discussion -- Acknowledgements -- References -- CHAPTER 14. A GRENVILLIAN MODEL OF PROTEROZOIC PLATE TECTONICS -- Abstract -- Introduction -- Plate tectonics and subduction -- Definitions -- A choice of models -- An overview of the Grenvillian Belt -- Pre-Grenvillian Proterozoic history -- Grenvillian history and isotopic dating -- Geophysics can help -- Tectonics of Grenvillian surroundings -- A Grenvillian model -- The failure of Phanerozoic models -- Stress-fields of Proterozoic plates -- Palaeomagnetic wanderings -- Three Grenvillian stress-fields -- Mobile plates or changing fields? -- Proterozoic tectonics and a Grenvillian Tibet -- Conclusion -- Acknowledgements -- References -- Part 4: Upper Proterozoic to Lower Palaeozoic tectonics (Pan-African event) -- CHAPTER 15. PAN-AFRICAN (UPPER PROTEROZOIC) PLATE TECTONICS OF THE ARABIAN-NUBIAN SHIELD -- Abstract -- Introduction -- Field, petrographic and geochemical data -- Lower Pan-African -- Middle Pan-African -- Upper Pan-African -- Plate-tectonic considerations -- Acknowledgements -- References -- CHAPTER 16. PAN-AFRICAN CLOSURE AND CONTINENTAL COLLISION IN THE HOGGAR-IFORAS SEGMENT, CENTRAL SAHARA -- Abstract.
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Introduction -- Contrasting pre-Pan-African history of the West African craton and the Touareg shield -- Early Pan-African rifting during the Upper Proterozoic -- Development of a passive continental margin -- Magmatism associated with continental fragmentation -- Initiation of ocean closure and subduction: Cordilleran-type evolution of the Pharusian belt -- Multistage structural development of the Pan-African Touareg shield -- The "Kibaran" event (1200-900 Ma ago) -- The event around 725 Ma ago -- The event around 700-680 Ma ago -- Pan-African collision of the West African craton with the Touareg shield around 600Ma AGo -- The suture -- Foreland nappes west of the suture -- Paired metamorphic belts -- Deformation in the Pharusian belt east of the suture -- Reactivation of the polycyclic central Hoggar-Aïr domain and the Tiririne linear intracontinental belt -- Conclusion -- Acknowledgements -- References -- CHAPTER 17. THE LATE PROTEROZOIC OPHIOLITES OF BOU AZZER (MOROCCO): EVIDENCE FOR PAN-AFRICAN PLATE TECTONICS -- Abstract -- Introduction -- The Bou Azzer ophiolitic complex -- Regional geology -- The Bou Azzer mafic-ultramafic complex -- Evidence for ophiolites at Bou Azzer -- Tectonic setting of the Bou Azzer ophiolite -- Discussion -- Spreading of ocean crust at Bou Azzer -- Bou Azzer ocean closing -- Conclusion -- Acknowledgements -- References -- Part 5: Geochemistry, isotope geology, petrology and geophysics: Constraints and models for Precambrian crustal evolution -- CHAPTER 18. EARTH TECTONICS AND THERMAL HISTORY: REVIEW AND A HOT-SPOT MODEL FOR THE ARCHAEAN -- Abstract -- Introduction -- Geophysical and geochemical models -- The heat flow and heat generation problem -- A hot-spot model -- Conclusion -- References -- CHAPTER 19. PETROGENESIS OF ARCHAEAN ULTRAMAFIC MAGMAS AND IMPLICATIONS FOR ARCHAEAN TECTONICS -- Abstract -- Introduction.
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Quench-textured peridotites.
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