• Thumbnail for Shear zone
    In geology, a shear zone is a thin zone within the Earth's crust or upper mantle that has been strongly deformed, due to the walls of rock on either side...
    12 KB (1,515 words) - 20:29, 5 April 2024
  • Thumbnail for Shear (geology)
    may be difficult to place a distinct fault plane into the shear zone. Shear zones may form zones of much more intense foliation, deformation, and folding...
    9 KB (1,076 words) - 13:58, 30 September 2022
  • of a spatially segregated displacement field. The eastern California shear zone is the portion of the Walker Lane that extends south from Owens Valley...
    8 KB (755 words) - 06:28, 31 May 2023
  • the named shear zones affecting the rocks of Great Britain and the Isle of Man. See the main article on shear for a fuller treatment of shear in rocks...
    5 KB (377 words) - 18:28, 20 March 2022
  • The Foumban Shear Zone, or Central Cameroon Shear Zone (CCSZ), is a fault zone in Cameroon that has been correlated with the Pernambuco fault in northeastern...
    3 KB (340 words) - 23:39, 5 February 2024
  • Thumbnail for Central African Shear Zone
    The Central African Shear Zone (CASZ) (or Shear System) is a wrench fault system extending in an ENE direction from the Gulf of Guinea through Cameroon...
    6 KB (629 words) - 11:03, 29 November 2023
  • Thumbnail for Achankovil
    of Achankovil Shear Zone..." ResearchGate. Retrieved 24 October 2021. Praharaj, P.; S, R. (1 December 2018). "The Achankovil Shear Zone, Southern India:...
    13 KB (1,056 words) - 10:28, 10 October 2023
  • deformation: the Redbank Shear Zone and the Officer Basin. The Redbank Shear Zone in the Arunta Block, is a reverse sense shear zone dipping north at about...
    8 KB (1,009 words) - 11:48, 19 November 2023
  • Dan Shear Zone is a north–south trending shear zone in Northeastern Ontario, Canada, located in the municipality of Temagami. The Big Dan Shear Zone was...
    2 KB (238 words) - 21:00, 22 July 2023
  • Thumbnail for Fold (geology)
    hinge zone. Concentric folds are caused by warping from active buckling of the layers, whereas similar folds usually form by some form of shear flow where...
    27 KB (3,011 words) - 18:08, 13 September 2023
  • depositional contacts, while faults and shear zones are of particular interest in structural geology. Faults and shear zones can be regarded as a form of secondary...
    8 KB (966 words) - 02:04, 9 December 2022
  • 15.66694°S 27.80000°E / -15.66694; 27.80000 The Mwembeshi Shear Zone is a ductile shear zone about 550 million years old that extends ENE-WSW across Zambia...
    5 KB (529 words) - 21:11, 1 July 2021
  • Thumbnail for Congo Basin
    Craton Shear zones Aswa Dislocation Broodkop Shear Zone Central African Shear Zone Chuan Shear Zones Foumban Shear Zone Kandi Fault Zone Mwembeshi Shear Zone...
    18 KB (2,163 words) - 14:34, 28 March 2024
  • Thumbnail for Monzogranite
    (Boiley and Gosselin, 2003) In northern Portugal, along the Vigo–Régua shear zone, the monzogranites belong to the syn-F3 biotite granitoid group. They...
    11 KB (1,288 words) - 15:58, 18 September 2023
  • Thumbnail for San Andreas Fault
    Sierra Nevada mountains called the Walker Lane or Eastern California Shear Zone. The reason for this is not clear. Several hypotheses have been offered...
    38 KB (3,839 words) - 03:40, 22 April 2024
  • Thumbnail for Landslide
    called shear zones) in which large deformations are concentrated. Slides are also sub-classified by the form of the surface(s) or shear zone(s) on which...
    52 KB (5,952 words) - 14:13, 1 March 2024
  • Thumbnail for Arabian-Nubian Shield
    shear zones include the Hamisana Shear Zone (665–610 Ma), the Ar-Rika–Qazaz Shear Zone (640–610 Ma) within the Najd Fault System, and the Oko Shear Zone...
    15 KB (1,836 words) - 13:36, 11 March 2024
  • ductile shear zone within which this outcrop resides. The spherical conglomerate pebbles stretched along the direction of movement of this shear zone, attaining...
    6 KB (739 words) - 18:15, 16 October 2023
  • Thumbnail for Geology of the Iberian Peninsula
    Malpica-Lamego line is a shear zone forming a line running north–south on the west side of the Galicia-Trás-os-Montes Zone. It is 275 km long and associated...
    98 KB (12,128 words) - 06:23, 25 April 2024
  • Thumbnail for African Plate
    recent Neoproterozoic sediments. The plate includes shear zones such as the Central African Shear Zone (CASZ) where, in the past, two sections of the crust...
    8 KB (869 words) - 23:44, 7 April 2024
  • east, near the border with Nevada and Arizona, the Eastern California Shear Zone (ECSZ) takes up to 25 percent of the plate motion. The ECSZ consists of...
    30 KB (3,209 words) - 01:38, 11 November 2023
  • Thumbnail for Mylonite
    ductilely deformed rocks formed by the accumulation of large shear strain, in ductile fault zones. There are many different views on the formation of mylonites...
    10 KB (1,079 words) - 16:21, 29 November 2023
  • Thumbnail for En echelon veins
    fractures that are parallel to the major stress orientation, σ1, in a shear zone. They are subsequently filled by precipitation of a mineral, typically...
    2 KB (157 words) - 08:14, 22 April 2024
  • straight coastline or indeed a combination of these features. Fracture zones, shear zones and igneous intrusions such as dykes can also be expressed as geomorphic...
    2 KB (244 words) - 10:30, 19 September 2021
  • the Kalaran Orogeny which generated a major fold belt or shear zone, the Fowler Shear Zone, ca. 1600–1540 Ma. Economically important deposits found in...
    8 KB (965 words) - 01:57, 13 January 2022
  • A high-shear mixer disperses, or transports, one phase or ingredient (liquid, solid, gas) into a main continuous phase (liquid), with which it would normally...
    10 KB (1,305 words) - 16:36, 8 November 2023
  • Thumbnail for Sarandí del Yí Shear Zone
    The Sarandí del Yí Shear Zone is a strike slip shear zone in Uruguay. The shear zone has a NNW-SSE orientation and a dextral relative direction. It runs...
    2 KB (203 words) - 19:04, 12 August 2023
  • Thumbnail for Cameroon line
    Foumban Shear Zone, which was active before and during the opening of the South Atlantic in the Cretaceous period. The western end of the shear zone is obscured...
    30 KB (3,714 words) - 11:20, 3 February 2024
  • Thumbnail for Deep-focus earthquake
    response to shear stress in a fine-grained shear zone. The transformation occurs along the plane of maximal shear stress. Rapid shearing can then occur...
    18 KB (2,131 words) - 06:49, 3 April 2024
  • Thumbnail for Niger Delta Basin (geology)
    caused by the thickened crust. Moving basinward is a transition zone, and a contraction zone, which lies in the deep sea part of the basin. The sediment fill...
    12 KB (2,231 words) - 12:48, 15 April 2024