SENSE AND NON-SENSE OF SHEAR IN FLANKING STRUCTURES
- DSpace Home
- →
- Геология России
- →
- ELibrary
- →
- View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.
SENSE AND NON-SENSE OF SHEAR IN FLANKING STRUCTURES
Grasemann B.; Stuwe K.; Vannay J.C.
xmlui.dri2xhtml.METS-1.0.item-citation:
Journal of Structural Geology, 2003, 25, 1, 19-34
Date:
2003
Abstract:
The deformation of marker horizons across slip surfaces can lead to the development of several types of flanking structures. The development of such structures was investigated using a numerical model to simulate the flow around a slip surface in a viscous medium. The modelled structures can be classified on the basis of three criteria: (1) the extensional or contractional offset of markers, (2) the co- or counter-shearing sense along the slip surfaces and (3) the normal or reverse drag of markers relative to the shear sense along the slip surfaces. As a function of the kinematic vorticity of the flow and the initial orientation of the slip surface, with respect to the shear zone boundaries, three main types of structures can develop: (1) shear bands developed along co-shearing extensional slip surfaces; (2) a-type flanking folds developed along counter-shearing slip surfaces; and (3) s-type flanking folds developed along co-shearing contractional slip surfaces. All these structures can occur with either normal or reverse drag effects. Shear bands and a-type flanking folds recording opposite shear senses can be geometrically very similar and consequently lead to kinematic misinterpretations. However, correctly identified flanking structures can provide quantitative information about the kinematic vorticity of the flow.
Files in this item
This item appears in the following Collection(s)
-
ELibrary
Метаданные публикаций с сайта https://www.elibrary.ru
Related items
Showing items related by title, author, creator and subject.
-
Rust A.C.; Cashman K.V.; Manga M. (2003)We interpret the shear environments that produced bubble textures in obsidian samples using the results of theoretical, numerical and experimental studies on the deformation of bubbles in shear flows. In particular, we use ...
-
Вознесенский Е.А.; Кушнарева Е.С.; Фуникова В.В. (Федеральное государственное бюджетное образовательное учреждение высшего образования «Московский государственный университет им. М. В. Ломоносова», 2011)Рассмотрены основные закономерности поглощения волн напряжений в дисперсных и полускальных грунтах. Установлены два пороговых уровня деформации, при достижении которых происходят качественные изменения коэффициента поглощения: ...
-
Лесин Виктор Иванович; Алексеева Юлия Владимировна (Общество с ограниченной ответственностью Экспозиция Нефть Газ, 2020)Исследовано влияние режимов воздействия напряжения сдвига на формирование дисперсной фазы коллоидных частиц нефти. На основе термодинамического подхода к формированию агрегатов коллоидных частиц нефти предложена концепция ...
Search DSpace
Browse
-
All of DSpace
-
This Collection