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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    English for Specific Purposes 10 (1991), S. 144-147 
    ISSN: 0889-4906
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: English, American Studies
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    English for Specific Purposes 7 (1988), S. 81-90 
    ISSN: 0889-4906
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: English, American Studies
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of metamorphic geology 12 (1994), S. 0 
    ISSN: 1525-1314
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: The Palghat Gap region is located near the centre of the large southern Indian granulite terrane. at the northern edge of the Kodaikanal charnockite massif. The dominant rock types in the region are hornblende-biotite ± orthopyroxene gneisses and charnockites along with minor amounts of intercalated mafic granulite, metapelite and calc-silicate. The P-T estimates from garnetiferous mafic granulites and metapelite samples are generally in the range 9-10 kbar and 800-900d̀ C using both conventional thermobarometric methods and the TWEEQU thermobarometry program. These P-T estimates, which should be taken as minimum values, are among the highest yet reported for South Indian and Sri Lankan granulites. The occurrence of orthopyroxene + plagioclase symplectites around embayed garnet grains in the mafic granulites and cordierite rims around garnet grains in metapelite suggest an isothermal decompression-type path. Similarly, a core-rim P-T trajectory indicates c. 3 and 7 kbar decompression at high temperature in the mafic granulites and metapelite, respectively. In both rock types, the key to the determination of the retrograde P-T path was the recognition of small amounts of second generation plagioclase with a more anorthitic composition than the matrix plagioclase. The preservation of high garnet-pyroxene temperatures in the mafic granulites (despite small garnet grain size) suggests rapid cooling of the terrane. Calculated minimum cooling rates range from 8 to 80d̀ C Ma-1. Such cooling rates are more rapid than those associated with normal isostatic processes and suggest that the terrane was tectonically exhumed at high temperature.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Inc
    Journal of metamorphic geology 19 (2001), S. 0 
    ISSN: 1525-1314
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: The late Mesozoic and Cenozoic metamorphic evolution of the western North American continental margin is recorded in a belt of homogeneous metapelitic rocks, the Kluane metamorphic assemblage (KMA), in the northern Coast Belt of Yukon Territory. A record of Late Cretaceous medium-pressure and -temperature (c. 7 kbar, 500 °C) metamorphism, M1, is preserved in Ca-rich garnet and Na-rich plagioclase cores in rocks that were little affected by later events. M1 was synchronous with mylonitization and is attributed to accretion of the KMA to the ancient continental margin. Isothermal decompression during rapid uplift was followed by early Eocene emplacement of the Ruby Range Batholith (RRB), part of a magmatic arc produced by subduction of the Kula plate. The intrusion of the RRB led to a contact metamorphic overprint, M2, producing a 5–6 km wide aureole in which the grade ranges from subgarnet zone to garnet–cordierite–K-feldspar zone. Pressure and temperature estimates for M2, calculated from mineral equilibria, are 3.5–4.5 kbar and 530–720 °C, generally consistent with the stability limits of the observed mineral assemblages. Comparison of mineral assemblages and P–T conditions in the KMA with those in the Mclaren Glacier metamorphic belt in Alaska does not support the correlation of the two metamorphic sequences. This weakens the hypothesis proposing 400 km of dextral slip along the Denali fault zone.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Earth and Planetary Science Letters 117 (1993), S. 407-422 
    ISSN: 0012-821X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Cell & tissue research 149 (1974), S. 481-495 
    ISSN: 1432-0878
    Keywords: Brain ; Monoamines ; Amphibia ; Fluorescence microscopy ; Electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The distribution of monoamines in the brain of Bufo poweri was investigated with the Falck-Hillarp method. Green fluorescence was observed in neurons of the diencephalic preoptic recess organ (PRO) and its so-called additional cells, in the paraventricular organ (PVO) and its so-called accompanying cells, in the nucleus infundibularis dorsalis (NID) and in the mesencephalic nucleus reticularis mesencephali (NRM). Yellow fluorescence was found in some cells of the PVO and NID and in neurons of the caudal part of the NRM. Extensive tracts of aminergic fibres are described running caudo-rostrally and mainly terminating in the septa and striata of the telencephalon. It is suggested that the aminergic nuclei mentioned above partly contribute to the ascending tracts. Other fibres, originating in the PVO and NID are curving centro-caudally towards the median eminence. Although with the electron microscope some apparently aminergic nerve fibres were detected in the pars intermedia, such fibres have not been observed fluorescence microscopically. The ultrastructural study of the PRO has shown the presence of two types of aminergic liquor-contacting neurons. Among the distal cells of the PRO, aminergic and peptidergic neurons were distinguished. The presence of PRO additional cells, which are considered as a rostral extension of the PRO, is discussed with regard to the terrestrial habitat of the species.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-0878
    Keywords: Paraventricular organ ; Xenopus laevis ; Monoamines ; Cytochemistry ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Ultracytochemical identification of monoamines in the paraventricular organ (PVO) of Xenopus laevis tadpoles was achieved by applying glutaraldehyde-potassium dichromate fixation to the brains. It appears that the amines are concentrated inside elongated or round large granular vesicles within the neurons. The presence of dopamine and, to a lesser extent, of indolamines in neurons of the PVO is discussed.
    Type of Medium: Electronic Resource
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