(ii) The area commander concerned for Ready Reservists assigned to troop program units under their control. (See AR 140-1, para 1-6.) (iii)... The organization is heavily reliant on mobilized Troop Program Units (TPU) Reserves and Special Skills Trainers (SST) to complete our mission.
Noun. 1. striation-any of a number of tiny parallel grooves such as: the scratches left by a glacier on rocks or the streaks or ridges in muscle tissue. stria. groove, channel-a long narrow furrow cut either by a natural process (such as erosion) or by a tool (as e.g. a groove in a phonograph record).
Striations. When a glacier moves across the underlying rock, the process of abrasion wears it away. It is the fragments of rock held in the ice that do the abrading, scraping across the rock surface like nails across a wooden desk top.Larger rock fragments leave deep scratch marks behind them.hen a glacier moves across the underlying rock, the process of abrasion wears it away. It is the fragments of rock held in the ice that do the abrading, scraping across the rock surface like nails across a wooden desk top. Larger rock fragments leave deep scratch marks behind them.