Veins are useful indicators of the sense of shear - here we look at some calcite veins in limestone in Oman which have a sigmoidal geometry in places and indicate a sinistral sense of shear.
Faults, Folds
This blog examines some key features of thrust systems with an example from seismic data offshore Namibia and from a hand specimen onshore UK.
Fractures, joints
This blog looks at joints contained within zones of deformation bands - how they form and if they are important or not.
Fractures
This blog describes the value of a geomechanical approach to fracture prediction; for example thin beds often have more fractures than thick beds.
Deformation Bands, Faults
This blog looks at some key features of zones of deformation bands. Featured are 2 outcrops of Permian age sandstone from Scotland, UK.
