Quantitative evaluation of the major fracture pattern in Austria

Buchroithner, Manfred

doi:10.1007/bf01820377

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…Sabins (1987) considers lineaments as straight linear features, presumably expressing a subsurface phenomenon that differ distinctly from the patterns of adjacent features. The relationship between faults and satellite lineaments has been studied in many areas with different erosional and lithological features (Wadge and Dixon 1982, Buchroithner 1984, Al Fasatwi and van Dijk 1990, Jutz and Chorowicz 1993, Ferrandini et al 1993, Heddi et al 1999). In the Iberian Peninsula, this relationship has been established in several works in the Tertiary basins of northern Spain, covered with horizontal Neogene sediments (Martín-Escorza 1982, Arlegui and Soriano 1998, Cortés et al 1998, Tena et al 1998.…”

Section: Introductionmentioning

confidence: 99%

The role of tectonic inheritance in the development of recent fracture systems, Duero Basin, Spain

Cortés

Soriano

Maestro³

et al. 2003

International Journal of Remote Sensing

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A lineament analysis of the Duero Basin (north Spain) suggests that cover rocks have been influenced by a previously fractured basement in sediment cover with little deformation. The Duero Basin is covered with horizontal Neogene rocks (mainly sandstones, shales and limestones) with a total outcropping area of about 50 000 km 2 and a maximum thickness of 300 m. The only structures found within the Neogene are map-scale monoclines near the basin margins, and joints and faults, most of them without significant displacement. From the analysis of a Landsat Thematic Mapper (TM) scene, lineaments were mapped at the eastern half of the Duero Basin. The orientation frequency of lineaments shows an absolute maximum NE-SW to ENE-WSW, with several sub-maxima oriented E-W, NW-SE and WNW-ESE. These fracture directions controlled most of the present-day fluvial network. Within the Palaeozoic and Mesozoic rocks cropping out at the basin margins the orientation of lineaments corresponds with that of mappable faults, particularly in the Palaeozoic basement. The zones with maximum density of lineaments are associated with map-scale WNW-ESE thrusts and folds located below the horizontal Neogene. The origin of the main fracture systems in the Neogene rocks of the Duero Basin appears to be controlled by older structures, namely the NE-SW faults that cross-cut the granitic and gneissic basement of the Duero Basin and its southern and western margins. These faults are late Variscan (probably Permian) in origin and were reactivated during the Mesozoic and the Cenozoic. Their activity in Miocene and post-Miocene times is related to strikeslip and extensional movements linked to the recent intraplate stress field in the Iberian Peninsula.

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Section: Introductionmentioning

confidence: 99%

The role of tectonic inheritance in the development of recent fracture systems, Duero Basin, Spain

Cortés

Soriano

Maestro³

et al. 2003

International Journal of Remote Sensing

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The ševĚtín astrobleme, southern Bohemia, Czechoslovakia

Vrána¹

1987

Geol Rundsch

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Geologische, geomorphologische, petrologische und geophysikallsche Daten, die tiber die 46 km im Durchmesset aufweisende Rundstruktur von ~ev~tin in Stidb6hmen (49~ 14~ ermittelt wurden, entsprechen der Charakteristik mittelm~ig erodierten Strukturen, die infolge des Einschlags eines grof~en Meteoriten yon Hypergeschwindigkeit entstanden sin& Das Astroblem wird als oberkretazisch (wahrscheinlich yon Coniac-his Santonalter, ~85-75 Mill. Jahre) geologisch datiert. Es ist durch Brtiche in Radialsegmente aufgegliedert, die verschieden intensiv erodiert sin& Geologische und geophysikalische Belege elner zentralen ,,Narbe~, yon 8 km im Durchmesser, eine Sto~wellenmetamorphose im Zentrum der Struktur sowie Relikte silizifierter Impaktbreccien, die globulare und suevi6ihnliche Typen mit Strukturanzeichen yon aufgeschmolzenem Material umfassen, stellen Hauptangaben zur Klassifizierung des Astroblems yon Sev~tfn als einer wahrscheinlichen Impaktstruktur dar. Die ,shatter cones,, und die Stof~wellenmetamorphose wurden in mehreren Formationen und verschiedenen Gesteinstypen yon dem herzynischen Granit im kristallinen Untergrund, tiber die stefanischen und permischen Gesteine bis zu der oberkretazischen Klikov-Schichtenfolge (ihrem unteren Tell) ermittelt. Die Morphologie des Kraterrandes ist in weniger erodierten Segmenten durch die Erosion ausgepr~igt. Die Zentralerhebung (Durchmesser yon 21 kin, d.h. ungef~ihr yon einer H~ilfte des Kratergesamtdurchmessers) ist morphologisch noch zum Tell erhalten, aber ihr 6stl. Tell ist yon der oberen Abteilung der Klikov-Schichtenfolge tiberdeckt. In Zusammenhang mit dem Impaktereignis werden bedeutsame tektonische, geomorphologische und pal~iogeographische )~nderungen gestellt, die in der Entwicldung der kontinentalen Oberkreide dieses Gebietes bereits frtiher erkannt wurden und zur Aufgliederung der Klikov-Schichtenfolge in zwei Abteilungen ftihrten. AbstractThe geological, geomorphological, petrological, and geophysical data for the 46 km circular structure Sev~tln *) Authors' address: Dr. S. V~NA, Usffedni 6stay geologickT~, Malostransk8 nfim. 19, 118 21 Praha 1, Czechoslovakia npHtleM eFO BOCTO~IHa~i qaCTb B CBOHX BepxHHX FopH-3OHTaX o~a3a~tac~, nepeKpblTO~I CBnTaMH KJ'I14KOB. He-peql4cJIeHbi Ba)KHble TeI~TOHHqecKHe, reoMop~oY[o-rHqecKHe i4 ilaYleoreorpaqbHqecI~14e H3MeHeH149I~ CB~3aH-Hble C naAeH14eM MeTeOpHTa. OH14 6blJIH H3BeCTHt,I H paHbtUe B ~aHHOM per140He; 3TO pa3peut~no lloApa3~Ie-flHTB CBHTbI K~HI~OB Ha ~Ba oT~eJ~a.

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Quantitative evaluation of the major fracture pattern in Austria

Cited by 2 publications

References 11 publications

The role of tectonic inheritance in the development of recent fracture systems, Duero Basin, Spain

The role of tectonic inheritance in the development of recent fracture systems, Duero Basin, Spain

The ševĚtín astrobleme, southern Bohemia, Czechoslovakia

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