shear zones การใช้

• Shear zones are dependent neither on rock type nor on geological age.
• The Redbank Shear Zone also accommodates 25 % of the apparent shortening.
• Late Hercynian granitoid bodies were intruded along the South Armorican Shear Zone.
• There is over 10 km of vertical offset along the shear zone.
• En echelon veins or fractures may be observed within shear zones.
• It occurs in a quartz vein within a diabase-porphyry shear zone.
• Repeated metamorphism and deformation caused extensive recrystallization, intense foliation, shear zones and folding.
• Shear zones can be only inches wide, or up to several kilometres wide.
• The origin of the microcline in shear zones poses another problem.
• There is a pattern of gold distribution along the Archean Boulder-Lefroy shear zone.
• The two are separated by a major east-southeast trending fault, the Chalba Shear Zone.
• The deposits are hosted in shear zones in argillite of the Precambrian Belt Supergroup.
• The N-S structure in the center of the image is the Hamisana Shear Zone.
• As such, many large and long shear zones are named, identical to fault systems.
• Shear zones accommodate compressive stress by movement on foliation planes.
• Internally, the rocks of the nappe are isoclinally folded and cut by shear zones.
• This evidence is commonly found in quartz, a typical piezometer, from ductile shear zones.
• Such faulting is believed to be the surface manifestation of a deeper shear zone.
• This may be evidence for a left transpressional shear zone.
• Oblique subduction induced the development of several shear zones which strike parallel to the orogen.