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  • 1
    Electronic Resource
    Electronic Resource
    Monitoring playa sedimentation using sequential radar images (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Terra nova 6 (1994), S. 0 
    Details
    ISSN: 1365-3121
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: A series of ERS-1 radar images of the Chott el Djerid playa in Tunisia obtained at intervals of 35 days demonstrates the ability to monitor geological change from space. The C-band radar backscatter is shown from field measurements to be sensitive to changes in surface roughness at millimetric scale due to evaporative growth of halite and gypsum crystals. Backscatter increases gradually during the dry summer months and decreases rapidly in early winter as the rains begin. Episodic hydrogeological and sedimentological events including lake development, channel flow and aeolian deposition can also be detected in addition to the seasonal pattern. Multitemporal, spaceborne radar offers the prospect of being able to map the dynamics of evaporite sedimentation in continental playas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3121.1994.tb00512.x
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  • 2
    Electronic Resource
    Electronic Resource
    Eruption mechanics on the Earth, Moon and Mars (1981)
    [s.l.] : Nature Publishing Group
    Nature 292 (1981), S. 493-494 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE discovery of volcanic eruptions on lo by the Voyager 1 spacecraft1 was exciting visual proof that volcanism, in this case based on sulphur, is a major process on the surface of at least one planetary body other than Earth. There is abundant, though less spectacular, visual evidence of past ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/292493a0
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  • 3
    Electronic Resource
    Electronic Resource
    Output rate of magma from active central volcanoes (1980)
    [s.l.] : Nature Publishing Group
    Nature 288 (1980), S. 253-255 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Table 1 Historic output rates of magma from selected volcanoes Output Plate tectonic Volume No. of rate Volcano setting Product Period (xl06m3) eruptions (m3 s"1) Refs Kilauea Intraoceanic Tholeiitic basait 1823-1975 3,323 54 0.69 1-3 Mauna Loa Intraoceanic Tholeiitic ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/288253a0
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  • 4
    Electronic Resource
    Electronic Resource
    Tilt and strain monitoring of the 1974 eruption of Mount Etna (1975)
    [s.l.] : Nature Publishing Group
    Nature 254 (1975), S. 21-23 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Using advanced modern equipment capable of continuous monitoring it has been possible to measure the degree of tilt and strain undergone by Mount Etna during a recent phase of volcanic activity. The results are open to interesting interpretation, and the model suggested here, though hypothetical, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/254021a0
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  • 5
    Electronic Resource
    Electronic Resource
    Steady-state magma discharge at Etna 1971–81 (1981)
    [s.l.] : Nature Publishing Group
    Nature 294 (1981), S. 548-550 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In 1975 we presented evidence1 for the rate at which magma appears at the summit and at the flank vents of Etna during the period 1966-74 and for the rate at which it erupted solely on the flanks of the volcano over a longer period (1535-1974). We now extend this record of volumetric discharge of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/294548a0
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  • 6
    Electronic Resource
    Electronic Resource
    The output of the Etna volcano (1975)
    [s.l.] : Nature Publishing Group
    Nature 255 (1975), S. 385-387 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The historical record of activity on Etna is unrivalled in the large number of lava flows of known date and areal extent: Sartorius von Waltershausen1 compiled a map of the lavas formed before 1839, and each eruption since then has been documented. Nevertheless, few attempts have been made to ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/255385a0
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  • 7
    Electronic Resource
    Electronic Resource
    Segmentation of the Lesser Antilles subduction zone
    Amsterdam : Elsevier
    Earth and Planetary Science Letters 71 (1984), S. 297-304 
    Details
    ISSN: 0012-821X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0012-821X(84)90094-3
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  • 8
    Electronic Resource
    Electronic Resource
    A porous flow model for the geometrical form of volcanoes-critical comments
    Amsterdam : Elsevier
    Earth and Planetary Science Letters 57 (1982), S. 453-455 
    Details
    ISSN: 0012-821X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0012-821X(82)90165-0
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  • 9
    Electronic Resource
    Electronic Resource
    Late Cenozoic alkaline volcanism in the northwestern Caribbean: tectonic setting and Sr isotopic characteristics
    Amsterdam : Elsevier
    Earth and Planetary Science Letters 57 (1982), S. 35-46 
    Details
    ISSN: 0012-821X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0012-821X(82)90171-6
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  • 10
    Electronic Resource
    Electronic Resource
    The dykes and structural setting of the volcanic front in the Lesser Antilles island arc (1986)
    Springer
    Bulletin of volcanology 48 (1986), S. 349-372 
    Details
    ISSN: 1432-0819
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The orientations of dykes from many of the islands of the Lesser Antilles island arc have been mapped. Most of these dykes can be interpreted in terms of local or regional swarms derived from specific volcanoes of known age, with distinct preferred orientations. Dykes are known from all Cenozoic epochs except the Palaeocene, but are most common in Pliocene, Miocene and Oligocene rocks. A majority of the sampled dykes are basaltic, intrude volcaniclastic host rocks and show a preference for widths of 1–1.25 m. Locally, dyke swarms dilate their hosts by up to 9% over hundreds of metres and up to 2% over distances of kilometres. The azimuths of dykes of all ages show a general NE-SW preferred orientation with a second NW-SE mode particularly in the Miocene rocks of Martinique. The regional setting for these minor intrusions is a volcanic front above a subduction zone composed of three segments: Saba-Montserrat, Guadeloupe-Martinique, St. Lucia-Grenada. The spacing of volcanic centres along this front is interpreted in terms of rising plumes of basaltic magma spaced about 30 km apart. This magma is normally intercepted at crustal depths by dioritic plutons and andesitic/dacitic magma generated there. Plumes which intersect transverse fracture systems or which migrate along the front can avoid these crustal traps. Throughout its history the volcanic front as a whole has migrated, episodically, towards the backarc at an average velocity of about 1 km/Ma. The local direction of plate convergence is negatively correlated with the local preferred orientation of dykes. The dominant NE-SW azimuth mode corresponds closely to the direction of faulting in the sedimentary cover of the backarc and the inferred tectonic fabric of the oceanic crust on which the arc is founded. A generalised model of the regional stress field that controls dyke intrusion outside of the immediate vicinity of central volcanic vents is proposed, in which the maximum horizontal stress parallels the volcanic front except in the northern segment where subduction of the Barracuda Rise perturbs the stress field. There is also evidence of specific temporal changes in the stress field that are probably due to large scale plate kinematics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01074466
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