Grinding (rubbing) noise from the front-Motorcycle Forum. Gear grinding. By Jonger in forum Marauder M50 Secret Hideaway Replies: 9 Last Post: 07-11-2006, 02:55 PM. Lubing ...
Fault-Block Mountains: The Fault-block Mountains or block mountains are created when faults or cracks in the Earth's crust force materials or blocks of rocks upward or down. The uplifted blocks are Block Mountains or horsts. The intervening dropped blocks are called graben, which can be small or form rift valley systems. These block mountains break up into chunks or blocks and move either up or down. When they move apart blocks of rock get stacked on one another Fault-block Mountains usually have a steep front side and then a sloping back side.
Fold mountain. Fold mountains are mountains formed mainly by the effects of folding on layers in the upper part of the Earth's crust. The term is rather out of date, though still fairly common in physical geography literature. In the time before plate tectonics became well understood, the term was used for mountain belts, such as the Himalayas. These mountain ranges are not caused by the folding of the earth's crust. The main mechanism causing a thickening of the crust at these sites of continent-continent collision along a convergent boundary is thrust faulting. Fold mountains are formed when two tectonic plates move together (a convergent plate boundary).