2014年进行的新航磁调查揭示了俄罗斯与挪威间地区（现为挪威海域）的古地质构造。Caledonian和Timanian结构在地基模式中占主导地位，影响了上覆盆地的形成。Tiddlybanken Basin是一个与Timanian趋势相关的非典型凹陷盆地，形成于Fedynsky High的南缘。早三叠世的区域拉伸引发了巴伦支海的盐构造活动。目前，Nordkapp和Tiddlybanken盆地附近的大型盐穹相当浅，有的甚至触及海底，显示出明显的水深和磁性特征。2D地震剖面的定量建模进一步约束了该地区的结构和地基组成。Nordkapp Basin的NE-SW走向代表了一个主要的克拉通铰接带，其结构和分段受新航磁数据突出显示的基底配置影响。研究区域可能位于一个厚实而刚性的地壳特征边缘，这与高磁性区域相吻合，对古生代晚期至中生代的裂谷和盐构造发展起着控制作用。
摘要：
The tectonic evolution of the former `grey zone' between Russia and Norway has so far remained poorly constrained due to a lack of geophysical data. In 2014, we carried out a new aeromagnetic survey (BASAR-14) in the southern part of the new Norwegian offshore territory. Caledonian and Timanian structures, highlighted by the new potential field data, dominate the basement patterns and have exerted a strong influence on the structure and development of the overlying basins and basement highs. Clearly associated with NW-SE-oriented Timanian trends, the Tiddlybanken Basin represents an atypical sag basin that developed at the southern edge of the Fedynsky High. Regional extension and rapid sedimentation initiated the salt tectonics in the Barents Sea in the Early Triassic. Some of the pillows became diapiric during the Early Triassic and rejuvenated during subsequent Jurassic-Tertiary episodes of regional extension and/or compression. At present, quite a few large diapiric salt domes along the Nordkapp and Tiddlybanken basins are relatively shallow, locally reaching the seabed and thus show a clear bathymetric and magnetic signature. Quantitative modelling along 2D seismic transects was also carried out to constrain the structural and basement composition of the study area. The predominant NE-SW Mesozoic trend of the Nordkapp Basin represents a major crustal hinge zone between the Finnmark Platform, poorly affected by major crustal deformation, and the Bjarmeland Platform where Late Palaeozoic rifting controlled the widespread accumulation of salt deposits in Late Carboniferous-Early Permian time. The entire structure and segmentation of the Nordkapp Basin have been influenced by the inherited basement configuration highlighted by the new aeromagnetic data. Both the Nordkapp and the Tiddlybanken basins appear to lie at the edge of a peculiar thick and rigid crustal feature that coincides with a highly magnetic region. The abrupt termination of the eastern Nordkapp Basin at the edge of this magnetic domain suggests the presence of an old and thick Precambrian continental block. This magnetic and tectonic buffer controlled the Late Palaeozoic-Mesozoic rifting and the salt tectonic development of the southeastern Barents Sea.
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