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- Title
Architecture of Glaciotectonic Complexes.
- Authors
Pedersen, Stig A. Schack
- Abstract
Glaciotectonic studies are an integrated part of the Quaternary geological research carried out by the Danish geological survey. Almost all the hilly areas in Denmark were created or affected by glaciotectonic deformations, and the features are included in the mapping of surface near deposits. For the mapping and support of constructing 3D geological models a classification of architecture of glaciotectonic complexes is suggested. The important elements for classification of architecture are the surfaces. Four orders of surfaces are defined for glaciotectonic complexes: first-order surfaces are décollement surfaces and glaciotectonic unconformities; second-order surfaces are ramps and flatsthe thrust faults; third-order surfaces are folded bedsanticlines and synclines; and fourth-order surfaces are small scale folds and faultskink bands, conjugate faults, box folds, etc. The most important first-order surface is the décollement surface. This surface limits the glaciotectonic complex at its base and controls the extent of glaciotectonic disturbances. Below this surface, ordinary flat lying planar bedding occurs, whereas above the surface a number of structures are present characteristic of second-to fourth-order elements in the glaciotectonic architecture. The other first-order surface is the topographic top of the glaciotectonic complex, which eventually may be replaced by a truncating unconformity.
- Subjects
STRUCTURAL geology; GEOLOGICAL research; GEOLOGICAL surveys; DEFORMATION of surfaces; SYNCLINES
- Publication
Geosciences (2076-3263), 2014, Vol 4, Issue 4, p269
- ISSN
2076-3263
- Publication type
Article
- DOI
10.3390/geosciences4040269