Results 241 to 250 of about 2,065,188 (309)

The Effects of Fault Geometry and Kinematic Parameters on 3D Fold Morphology: Insights From 3D Geometric Models and Comparison With the Dushanzi Anticline, China

Tectonics, 2020
Precise knowledge of the geometry of faults and folds at depth is important for tectonics, economic geology, and seismic hazards. However, the geometry and kinematics of faults and the aspects controlling the coevolution of folds are difficult to ...
Z. Li, Wei Chen, D. Jia, Chuang Sun, Wenjun Zheng, Peizhen Zhang, Weitao Wang, Tao Li, Jianguo Xiong   +8 more
semanticscholar   +1 more source

Hierarchical geometry of faulting

Journal of Geophysical Research: Solid Earth, 1996
Several joint and fault patterns were mapped at different scales (from 1 cm to 100 km) on the sedimentary cover of Saudi Arabia. They were analyzed using a new multifractal algorithm improved to correct for irregular geometry of mapped domains and finite size effects.
G. Ouillon, C. Castaing, D. Sornette
openaire   +1 more source

Quantifying fault breccia geometry: Dent Fault, NW England

Journal of Structural Geology, 2008
A geometric classification of fault breccia borrowed from the cave-collapse literature has been suggested as an alternative to available genetic classifications. Here, image analysis is used to explore geometric discrimination between the visually assigned classes of crackle breccia, mosaic breccia and chaotic breccia, using samples from the well ...
K. Mort, N.H. Woodcock
openaire   +1 more source

Sediment geometries and domino faulting

Geological Society, London, Special Publications, 1993
Abstract A general forward modelling scheme is used to produce a model of sediment geometry in half-grabens formed during extension of domino fault blocks. The model includes the effects of erosion, sediment transport, sedimentation and isostasy and simulates both syn- and post-rift sedimentary sequences.
David Waltham, Stuart Hardy, Abdulnaser Abousetta   +2 more
openaire   +1 more source

The geometry of normal faults

Journal of the Geological Society, 1990
This meeting took place at Burlington House on 14 and 15 June 1989. Until recently a specialist structural geology meeting on a theme such as this would have been solely the preserve of the Tectonic Studies Group.
ALAN ROBERTS, GRAHAM YIELDING, BRETT FREEMAN   +2 more
openaire   +1 more source

A noise reduction method based on adaptive weighted symplectic geometry decomposition and its application in early gear fault diagnosis

, 2021
When the gear appears early fault, it will be accompanied by strong background noise, and the fault information is weak. Therefore, the result of noise reduction often determines whether the early gear fault can be accurately diagnosed.
Jian Cheng, Yu Yang, N. Hu, Zhe Cheng, Junsheng Cheng   +4 more
semanticscholar   +1 more source

Displacement geometries along graben bounding faults

First Break, 1994
The Hom Graben is a N-S striking graben structure cutting the E-W striking system of the North Sea High, It is located in the Danish and German North Sea between the Danish mainland and the Central Graben (Fig. 1). The Hom Graben as generally defined is of late Permian to Triassic age (Best et al.
O.R. Clausen, J.A. Korstgård
openaire   +1 more source

Modelling of fault-related sedimentary geometries

55th EAEG Meeting, 1993
Modelling of fault-related sedimentary geometries bas been carried out with the principal objective of understanding and predicting hangingwall traps. The models are consistent with a number of Palaeozoic, Mesozoic and Cenozoic examples from a range of basins throughout Northwest Europe. These basins include the Celtic Sea, Porcupine, Central Irish Sea,
J. J. Walsh, C. Childs, O. Clausen, J. Korstgard, T. McCann, P. Shannon, J. Watterson   +6 more
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Damage zone geometry around fault tips

Journal of Structural Geology, 1995
Damage zones are described around small scale normal, strike-slip, and reverse faults cutting horizontally-bedded carbonates, shales and siltstones in the Bristol Channel basin, U.K. Two different types of brittle damage zone have been recognized: (a) fractures branching directly from the fault tip; and (b) fractures forming an en echelon array, which ...
Annette G. McGrath, Ian Davison
openaire   +1 more source

Determining Fault Geometries From Surface Displacements

Pure and Applied Geophysics, 2017
We introduce a new algorithm for determining the geometry of active parts of faults. This algorithm uses surface measurements of displacement fields and local modeling of the Earth’s crust as a half-space elastic medium. The numerical method relies on iterations alternating non-linear steps for recovering the geometry and linear steps for ...
D. Volkov, C. Voisin, I. R. Ionescu
openaire   +1 more source