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  • Citlaltépetl  (1)
  • Geodynamics  (1)
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  • 1
    Online Resource
    Online Resource
    Orogenic andesites and crustal growth (2014)
    Details Availability
    Keywords: Geology, Structural ; Geodynamics ; Earth (Planet) Crust ; Aufsatzsammlung ; Andesit ; Gesteinskunde ; Geochemie ; Gesteinsbildung ; Orogenese ; Plattentektonik ; Magmatismus ; Ergussgestein
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (IX, 414 Seiten)
    ISBN: 9781862393691
    Series Statement: Geological Society special publication 385
    URL: http://sp.lyellcollection.org/content/385/1
    DDC: 552.2
    Language: English
    Note: Foreword , Along-arc geochemical variations in Quaternary magmas of northern Kyushu Island, Japan , A genetic link between silicic slab components and calc-alkaline are volcanism in central Mexico , Andesite petrogenesis by slab-derived plume pollution of a continental rift , Reappraisal of uranium-series isotope data in Kamchatka lavas: implications for continetal arc magma genesis , High-magnesium andesites: the example of the Papuan Volcanic Arc , Influence of source materials and fractioning assemblage on magmatism along the Aegean Arc, and implications for crustal growth , Crystal uptake into aphyric arc melts: insights from two-pyroxene pseudo-decompression paths, plagioclase hygrometry, and measurement of hydrogen in olivines from mafic volcanics of SW Japan , Altered mineral uptake into fresh arc magmas: insights from U-Th isotopes of samples from Andean volcanoes under differential crustal stress regimes , Lying in wait: deep and shallow evolution of dacite beneath Volcán de Santa María, Guatemala , Volcanoes of the Diamante cross-chain: evidence for a mid-crustal felsic magma body beneath the Southern Izu-Bonin-Mariana arc , Preferential eruption of andesitic magmas: implications for volcanic magma fluxes at convergent margins , The Strawberry Volcanics: generation of 'orogenic' andesites from tholeiite within an intra-continental volcanic suite centered on the Columbia River flood basalt province, USA , Magma sources and tectonic setting of Central Andean andesites (25.5-28°S) related to crustal thickening, forearc subduction erosion and delamination , Evolution of late Cenozoic magmatism and the crust-mantle structure in the NE Japan Arc , Pulling apart the Mid to Late Cenozoic magmatic record of the Gulf of California: is there a Comondú Arc?
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  • 2
    Electronic Resource
    Electronic Resource
    Fragmentation, transport and deposition of a low-grade ignimbrite: The Citlaltépetl Ignimbrite, Eastern México (1999)
    Springer
    Bulletin of volcanology 60 (1999), S. 448-464 
    Details
    ISSN: 1432-0819
    Keywords: Key words Mexican volcanoes ; Citlaltépetl ; Ignimbrites ; Fluidization ; SFT ; Mechanisms of transport and emplacement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract  The Citlaltépetl Ignimbrite records one of the largest explosive events during the Holocene activity of Citlaltépetl Volcano (Pico de Orizaba). Multiple pyroclastic flow units, a fall deposit, and some lahar units were emplaced between 8500–9000 y B.P. as a result of repetitive but discrete explosive events. The whole ignimbrite resulted from discrete fluctuations in eruptive intensity that decreased with time. The initial pyroclastic flow pulse was by far the most violent and widespread event, and its deposits show conspicuous variations in structure and texture that could be associated with different mechanisms of transport and emplacement. Subpopulation Sequential Fragmentation Transport (SFT) analyses were carried out in order to determine the physical mechanisms that selectively concentrate or remove particles in the moving flows. We suggest that lateral and temporal changes in the flow rheology, in which fluidization, yield strength, entrainment of atmospheric air, and sedimentation played a dominant role in flow propagation and emplacement, may imprint a unique signature in the grain-size spectra. The lowermost unit of the Citlaltépetl Ignimbrite can be envisaged by a model in which progressive aggradation near the vent became replaced by en masse emplacement farther outward.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004450050245
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