Late Triassic tectonic evolution in northwest Jutland, Denmark

Madirazza, Ivan; Jacobsen, Bo Holm; Abrahamsen, Niels

doi:10.37570/bgsd-1990-38-08

Cited by 7 publications

(1 citation statement)

References 19 publications

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“…The Pre-Quaternary geology of the western LimtJorden region is dominated by a number of salt structures (Hansen & Håkansson, I 980;Larsen & Baumann, 1982;and Madirazza, 1990). The Hanklit Thrust Fault Complex is situated between two of these structures.…”

Section: Geological Settingmentioning

confidence: 99%

The Hanklit Gaciotectonic Thrust Fault Complex, Mors, Denmark

Klint

Pedersen

1995

seriea

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The Hanklit cliff section is a classical glaciotectonic locality where an excellent cross-section through a thrust fault complex is exposed. The thrust imbrications were thrust from north to the south during a Late Weichselian glacier advance. Three thrust sheets with thickness of more than 50 m are involved in the thrust fault complex. The deposits exposed in the cliff-section comprise ca. 39 m diatomite with ash layers of Paleocene-Eocene age (the Fur Formation), overlain by up to 27 m of Quaternary glacigenic sediments. Common structural features related to compressional thrust fault helts, are recognizable in the glaciotectonic complex, which shows a lateral shortening of more than 40%. Structures created by soft sedimentary deformation due to high water pressure occur in relation to the thrust fault zones. The structural framework is described with the terminology of thin-skinned tectonics and flats, ramps and hanging-wall anticlines are identified in the cliff-section. A balanced cross section has been constructed. Based on this construction the structural model is verified and the glaciotectonic development is interpreted. A geoelectrical investigation has been made to support the construction of the 3-dimensional framework of the thrust complex. This demonstrates that the impressive Hanklit thrust sheet extends for more than 1 km along the strike and is displaced more than 200 m to the south. Superimposed extentional structures, situated above the sole of the Hanklit Thrust Sheet, are interpreted to be related to Tertiary subsidence tectonics.

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Section: Geological Settingmentioning

confidence: 99%