Coeval Lower Miocene subsidence of the Eisenstadt Basin and relative updoming of its Austroalpine frame: implications from high-resolution geophysics at the Oslip section (Northern Burgenland, Austria)
作者： Hermann Häusler , Jürgen Scheibz , Werner Chwatal , Franz Kohlbeck
DOI: 10.1007/S00531-014-1084-8
关键词: Subsidence 、 Geology 、 Paleontology 、 Neogene 、 Geophysics 、 Fault (geology) 、 Structural geology 、 Syncline 、 Gravimetry 、 Sedimentology 、 Structural basin
摘要: A fault system southeast of Eisenstadt was investigated with high-resolution geophysics using electric resistivity tomography, seismics and gravimetry. The St. Margarethen Fault separates the Neogene succession Basin from north south-trending Rust Range, which belongs to Austroalpine frame. interpretation profiles down a depth 350 m derived reflection refraction combined density model along Oslip road section clearly reveals listric fault, dips westward towards Basin. Bed thickness growth-strata regularly increases west east, normal drags visible in seismic profile allow for interpreting this structure as hanging-wall syncline. Thickness distribution deposits that can be interpreted half-graben bounded by developed at western flank Range. subsidence during Lower Middle Sarmatian times accompanied concurrent updoming Range least 70 m. For mechanism footwall uplift hanging wall is inferred.
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