plate shear
71Superior craton — in the west. The western margin extends from northern Minnesota through eastern Manitoba to northwestern Ontario.The formation of the Superior craton is best explained within the context of 2.72 2.68 Ga accretion of small continental plates and… …
72Structural engineering — is a field of engineering dealing with the analysis and design of structures that support or resist loads. Structural engineering is usually considered a speciality within civil engineering, but it can also be studied in its own right. [cite… …
73Ballistic vest — A ballistic vest is an item of protective clothing that absorbs the impact from gun fired projectiles and shrapnel fragments from explosion. This protection is for the torso. Soft vests are made from many layers of woven or laminated fibers and… …
74Friction stir welding — (FSW) is a solid state joining process (meaning the metal is not melted during the process) and is used for applications where the original metal characteristics must remain unchanged as far as possible. This process is primarily used on aluminum …
75Topfmine — The Topfmines were a series of German circular minimum metal anti tank blast mines that entered service with the German army in 1944, during the Second World War.The mines used a case made of compressed wood pulp, cardboard and tar along with… …
76Shearing (physics) — Shearing in continuum mechanics refers to the occurrence of a shear strain, which is a deformation of a material substance in which parallel internal surfaces slide past one another. It is induced by a shear stress in the material. Shear strain… …
77Non-volcanic passive margins — (NVPM) constitute one end member of the transitional crustal types that lie beneath passive continental margins; the other end member being volcanic passive margins (VPM). Transitional crust welds continental crust to oceanic crust along the… …
78radar — /ray dahr/, n. 1. Electronics. a device for determining the presence and location of an object by measuring the time for the echo of a radio wave to return from it and the direction from which it returns. 2. a means or sense of awareness or… …
79Mk 4 mine — The Mk 4 mine or Mine G.S. Mk IV was a British anti tank mine used during World War II. Externally the mine has a cylindrical main body filled with explosive either TNT or Baratol. The mine is covered by a pressure plate, which is attached to the …
80Walker Lane — The Walker Lane (also known as the Eastern California Shear Zone)is a geological trough oriented north northwest south southeast, roughly aligned with the border of the states of California and Nevada in the United States. The trough includes… …
