A response to a study on tectonic and isostatic uplift in southern norway

a response to a study on tectonic and isostatic uplift in southern norway And at the base of the crust leading to isostatic uplift, flow of asthenospheric material into active diapirs, isostacy associated with glacial erosion, phase changes in the lithosphere due to pressure relief and regional compression of the lithosphere.

28 m rohrman et al subsequently, we focus on southern norway, and review the evidence for the timing and magnitude of neogene uplift and denudation. Material (c) (d) the topography of the area subjected to uplift (positive values) and subsidence (negative) during erosion and isostatic adjustment the black line in (a) outlines areas subjected to erosion in the model this area is taken to be far (at least 1000 km) away from boundaries to avoid the boundary effect. It is argued that the cenozoic evolution of the eastern north sea basin may be explained by a ‘self-perpetuating’ passive model this model involves isostatic uplift of source areas due to ero- • late paleocene-early eocene tectonic uplift of scot-land and norway related to the opening of the north atlantic (eg ziegler 1990).

It is argued that the present-day elevation of 2km of mountain peaks in southern norway adjacent to deep valleys and fjords could have been caused by isostatic uplift in response to dissection of a high-elevation peneplain. Request pdf on researchgate | postglacial uplift, neotectonics and seismicity in fennoscandia | fennoscandia has experienced major uplift in postglacial time, which is assumed to reflect a glacial isostatic process connected to the melting of the last ice sheets. The post-caledonian uplift history of southern norway the continental shelf and the mainland of norway is indeed a classical area for the study of the rise of the land as a result of the.

The present study investigates the influence of alpine glacial erosion on the morphology and relief distribution of mountain regions associated with varying rock column uplift rates. Norway and southern sweden and probably represents a new eustatic rise in sea-levelthe transgression initiated a cycle of black shale sedimentation which continued, interrupted only by episodes ofcarbonate sedimentation. The modelling has depicted certain areas with anomalous uplift rates in the order of 10 mm/yr (southern norway, along the coast of northern norway and in the bothnian bay) one interpretation is that the glacial isostatic uplift in these areas is overprinted by a weak tectonic uplift component. Reassessment of the postglacial sea-level data to take account of the exponential decay in glacio-isostatic uplift (smith et al, 1993, smith et al, 1995 firth et al, 1997), indicates that the minimum rates of uplift are between 02 and 10±01 mm/ 14 c yr near the centre and 02±01 mm/ 14 c yr near the margin.

A response to a study on tectonic and isostatic uplift in southern norway

Of southern norway roy h gabrielsena,d,, jan inge faleidea, christophe pascalb, study of uplift and denudation of east and west greenland and its continental shelf (dam et al, 1998 chalmers, 2000 mathiesen thermo-tectonic and isostatic responses to late palaeozoic, mesozoic and cenozoic. The major fjords of southern norway require more than 15 km of added material (fig 2c) and that additional weight results in up to 07 km subsidence of the modeled plate (figs 3aand4.

  • Neogene uplift and tectonics around the north atlantic: overview peter japsen), james a chalmers geological sur ˝ey of denmark and greenland geus , thora()ej 8, dk-2400, of southern norway with the base tertiary surface offshore, which then represents a consistent surface.

Isostatic response to glacial erosion we focused our study on the southern scandes and used the high-resolution meso-cenozoic morphotectonic evolution of southern norway: neogene domal uplift inferred from apatite fission track thermochronology tectonics, 14. The isoslatic response using an earth model with layered mantle viscosity overlain by an elastic lithosphere the theoretical pattern of the present rate of uplift and the lilting histoly for the western coast of norway based on a thin ice model show significant. An isostatic test of the hypothesis of ice-free mountain areas during the last glaciation nous block fields and trimlines in southern norway indicates a low-gradient, multiðentred, asymmetric scan- to the present reflects a large-scale tectonic uplift of fennoscandia unrelated to the last glaciation he argues. Subsidence and tectonics in late precambrian and palaeozoic sedimentary basins of southern norway knut bjørlykke bjørlykke, k 1983: subsidence and tectonics in late precambrian sedimentary isostatic uplift following the melting of glaciers has shown that the crust.

a response to a study on tectonic and isostatic uplift in southern norway And at the base of the crust leading to isostatic uplift, flow of asthenospheric material into active diapirs, isostacy associated with glacial erosion, phase changes in the lithosphere due to pressure relief and regional compression of the lithosphere.
A response to a study on tectonic and isostatic uplift in southern norway
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