Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 11
    Electronic Resource
    Electronic Resource
    Tectonic pattern of the crater Grimaldi region of the Moon (1981)
    Springer
    Earth, moon and planets 24 (1981), S. 327-338 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The tectonics of the Grimaldi area are described and analyzed in detail from high-resolution Lunar Orbiter photographs. Rille grabens are long and narrow fault zone structures of lunar terra. The polygonal rille graben pattern indicates the importance of lunar internal activity with an adjoining thin lithosphere in the areal tectonics at the time of rille grabening. The graben subsidence developed during tensional bending of this thin terra lithosphere. The en échelon graben offsets indicate the existence of strikeslip movements along the main fault under tensional lithosphere conditions. In some places mare ridge ranges continue in the direction of the rille graben indicating the connection of these structures to each other as part of the lunar tectonic evolution. The very thin mare lithosphere was affected more easily and over a longer period of time by lunar internal forces. The effect of older structural units is thus less conspicuous within mare areas. Proposed Riedel-shear-like structures indicate a slight shortening and compression of the mare basin lithosphere during movements along lava-covered zones of weakness.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00897105
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 12
    Electronic Resource
    Electronic Resource
    Lunar ‘en echelon within en echelon’ structures (1981)
    Springer
    Earth, moon and planets 25 (1981), S. 105-112 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Some en echelon structures, tension gashes and compressional ridges may form similar patterns. The N-S compression activates diagonal conjugate zones of weakness with tension gashes in the vicinity of the compressional direction. In the case of E-W compression similar arrangements of en echelon compression ridges are generated. The global N-S compression existing at the time of fracturing of the lava-flooded Oceanus Procellarum basin is arguable. It is possible to interpret some different scale mare ridge arrangements as ‘en echelon within en echelon’ structures. Major ridge ranges evidently have Riedel and opposite Riedel orientations and they consist of minor en echelon structures which may in places be intruded tension gashes but are evidently mostly sheared and compressed Riedel fractures. The ‘en echelon withinen echelon’ structures of mare ridges manifest the significance of different scale strike-slip movements along the lithosphere zones of weakness indicated by present mare ridge zones. The orientation of these Riedel-fracture-like en echelon structures also points to the existence of an areal compression during shearings along the zones of weakness. The Oceanus Procellarum basin sinking caused by lava loadings and lunar internal cooling led to the lithosphere shortening and to compressional circumstances. The angle between proposed Riedel structures and the mare ridge zones varies within this area, possibly indicating differences in compression and shearing in distinct parts of the shortened basin lithosphere.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00911811
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 13
    Electronic Resource
    Electronic Resource
    A note on computer-aided planetary remote sensing (1984)
    Springer
    Earth, moon and planets 30 (1984), S. 205-207 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract An example is presented to assist remote sensing scientists in their orientation towards the digital analysis of planetary image data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00114313
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 14
    Electronic Resource
    Electronic Resource
    Mapping previously unmapped planetary surface: A supervised multispectral terrestrial/aquatic approach in northeastern Finland (1984)
    Springer
    Earth, moon and planets 30 (1984), S. 295-311 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Although large numbers of imageries over planetary surfaces have been aquired by notable space missions over the past twenty years, the versatile technical remote sensing achievements, which have found their long-term and successful applications within the fields of different geosciences, have not been employed in planetology. High resolution imageries allow small-scale surface features to be observed, various filters allow different wavelength bands and surface units of different colour or spectral reflectance to be recorded. Also long-term missions transmit information about multitemporal changes, but such diversified multitemporal surface mapping, as possible by Landsat MSS data, to say nothing of the potential of the Landsat TM and SPOT equipment, are mostly unexecuted. This paper contains an example of the aquatic environment research by computer-assited remote sensing using Landsat MSS data. The western parts of Lake Yli-Kitka, northeastern Finland were studied and mapped according to spectrally identified classes which were improved after field work by associated reclassification. The Landsat classification of open water areas depends on the water quality and depth, or shore distance relations. The recognition of aquatic vegetation complexes is based on the main life-form (helophytic, nymphaeid, isoetid etc.) and the amount of recorded radiation reflected from the chlorophyll (or from other shallow bottom coverage) in respect to the open water surface radiation absorbance within near infrared wavelengths. Aquatic areas are quite featureless in respect to their reflectance, especially in northeastern Finland area studied. The use of wide-channel multispectral satellite data has demonstrated to be valid under quite difficult circumstances. Similar or preferably more up-to-date planetary imagery data could be of high utility value in mapping various surface units of the terrestrial planets and large moons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00056206
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 15
    Electronic Resource
    Electronic Resource
    Terra scarps indicating youngest terra faults on the moon (1984)
    Springer
    Earth, moon and planets 31 (1984), S. 63-74 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Lunar crustal shortening does not seem to be restricted to the lava-filled basins alone; but there are some young scarp-like terra ridges in places around mare areas where they often continue other tectonic structures. This crustal shortening has not reached the same intensity as in the case of the lobate scarp overthrusts on Mercury. Young lunar terra ridges indicate that crustal shortening with an areal extent also took place slightly around mare basins. Thus they link tensional rille tectonics with compressional mare ridge tectonics and indicate that areal heating/bending/extension — cooling/ shortening/compression may describe an important explaining factor in lunar mare- and near-mare tectonics in addition to the volcanic extrusions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00058112
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 16
    Electronic Resource
    Electronic Resource
    A Landsat-assisted study of the aquatic areas of the Lake Kemijärvi region, Northern Finland (1984)
    Springer
    Earth, moon and planets 31 (1984), S. 183-216 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Landsat MSS imagery is employed to assess the aquatic complexes of the regulated Lake Kemijärvi and the adjoining small natural lakes in Northern Finland. Ground data were collected from within the hydrolittoral areas to allow the evaluation and revision of the computer-aided Landsat MSS classification. The major developments reported here are: (1) the utilization of the computer-aided technique for surveying natural and regulated aquatic areas, (2) the recognition of different aquatic units and complexes defined by depth relations, bottom quality, vegetation coverage or flooding stage, and (3) the presentation of the lower limit of satellite data applicability for mapping small-sized and complicated areas. Although the low spectral and ground resolution levels place restrictions on the use of computeraided Landsat MSS data remote sensing for the parametric mapping of all aquatic phenomena, such data are still of value under circumstances in which ground data collected from a small number of reference areas can be extrapolated to apply to the surrounding lakes and aquatic areas within a single MSS frame. Studies of this kind also facilitate the multitemporal inspection of changing regulated lake environments, due to the long-term nature of the Landsat project.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00055529
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 17
    Electronic Resource
    Electronic Resource
    Tectonics of Tharsis dorsa on Mars (1987)
    Springer
    Earth, moon and planets 39 (1987), S. 275-289 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The tectonics of the Tharsis and adjoining areas is considered to be associated with the convection in the Martian mantle. Convection and mantle plume have been responsible for the primary uplift and volcanism of the Tharsis area. The radial compressional forces generated by the tendency for downslope movement of surface strata, vertical volcanic intrusions and traction of mantle spreading beneath Tharsis were transmitted through the lithosphere to form peripheral mare ridge zones. The locations of mare ridges were thus mainly controlled by the Tharsis-radial compression. The load-induced stresses then contributed on further ridge formation over an extended period of time by the isostatic readjustment which was reponsible for long-term stresses in the adjoining areas. Extrusions, changes in internal temperature and possible phase changes may also have caused changes in mantle volume giving rise to additional compressional forces and crustal deformations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00055056
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 18
    Electronic Resource
    Electronic Resource
    Small planitiae on Venus: Tensional or compressional tectonics? (1989)
    Springer
    Earth, moon and planets 45 (1989), S. 237-263 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The two small planitiae south of Fortuna Tessera define distinct crustal units not very unlike to small crustal plates or subplates. The mobile transformation zone between Fortuna Tessera and Allat Planitia is caused by colliding crustal plates and evidently indicates the mobilization of the planitia unit foiled by the parquet terrain. Ridges parallel to this zone and in dextral ridge groups on planitia support the idea of the main N(W)-S(E) compression. Allat Planitia has been pushed approximately from the south and southeast against Fortuna Tessera which, in contrary, has spreaded to the southeast. Within the smaller planitia there are two conjugate ridge sets and a third ridge set parallel to the parquet border. The crossing ridge sets favour the existence of a compressional NW-SE force, as do the N-S directed ridges of the middle planitia area. At least three tectonic phases within Allat Planitia can be found. The main compression was in N(W)-S(E) direction. Prominent right-handed en echelon ridge groups and long parallel ridges of the northern planitia area indicate this comrpessional environment as well as the transformation zone against Fortuna Tessera. Short dome-like ridges indicate the tension gash opening during a NW-SE compression phase. An E-W (or NWW-SEE) compression resulted in the formation of the long linear wrinkle ridge-like N-S structures on Allat Planitia. The NW-SE compression, which has caused the formation of the dextral, E-W oriented major fault, was then the youngest of the main tectonic phases involved within the area studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00057746
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 19
    Electronic Resource
    Electronic Resource
    Fractal properties of outflows from Venusian impact craters (1996)
    Springer
    Earth, moon and planets 73 (1996), S. 195-214 
    Details
    ISSN: 1573-0794
    Keywords: Venus ; impact craters
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract This article presents fractal analyses of 28 outflow margins from 18 Venusian impact craters. The fractal dimensions of the second parts of R-plots of the outflow outlines were measured by a three-step method. The fractality values for the same outflow measured from images which have only a small difference in resolution are very similar, while large differences in image resolution may result in differences in fractality, possibly due to the fact that we are actually studying geological processes on different scales. The outflows were classified into three general categories: single outflows, multiple outflows and outflow fields. Three conclusions were drawn on the relations between fractality and crater diameter, which may be related to the greater effects caused by the immediate local environment on the outflows from small craters than on those from larger craters. Investigation of the relations between the regional topography and fractality indicates that there are substantially less effects on outflows originating from large craters than on those from small craters. The smooth bending in the R-plot and the higher D-value for the multiple outflows could result from the mixing of various fractal or non-fractal units. When comparing our results with the fractality of terrestrial lava flows, outflows from craters of diameter greater than 50 km seem to resemble a′a-type lava flows in their fractal dimensions and outflows from craters of diameter below 50 km tend to be more pahoehoe-like. This preliminary result is based on 28 outflows, however, and the pattern should be investigated more carefully by further more extensive work.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00115880
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 20
    Electronic Resource
    Electronic Resource
    Chocolate tablet aspects of tectonics of Meshkenet Tessera on Venus (1996)
    Springer
    Earth, moon and planets 74 (1996), S. 191-214 
    Details
    ISSN: 1573-0794
    Keywords: Planetary tectonics ; Venus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The intrablock deformation of Meshkenet Tessera on Venus is mostly due to responses of the uppermost surface bedrock to tensional stresses. It is found that complex deformation structures within the highland blocks resemble those of formed in chocolate tablet boudinaging which has taken place after original parallel faulting and bar-like crustal block formation. The high-angle tessera structures with varying cross-cutting relations define styles and locations of multiphase deformation most evidently related to local relaxation of tessera topography. Series of progressive or superposed fracturing events with alternating fault directions took place at high angles during this relaxational deformation. Compressional ridges often surround these tesserae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00055186
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...