Ocs 1005 - Exam 1 Study Guide | Questions With 100% Complete Solutions

7) You should know how sediments are classified based on sorting and under what conditions we find these different classes of sediments {Ans: • Well sorted sediments o Sediments composed primarily of particles of one size o Found where energy fluctuation occurs in a narrow range • Poorly sorted sediments o Sediments composed of particles of a range of sizes o Found where energy fluctuations occur over a wide range}12) You should know how sediment accumulation affects the bathymetry of a spreading center {Ans: Sediment accumulation changes the surface expression of the ridge. There is greater sediment accumulation the farther you get away from the spreading center because the crust is older and has had more time to accumulate sediments.}2) What do the Polynesian stick maps show? {Ans: The shells represent islands the distance between the shells is not the actual distance between islands but a relative distance that takes into account the prevailing currents and winds. We might say the distance between shells represents the travel time between the islands.}8) You should know how old the oldest ocean sediments are and why there are no sediments older {Ans: No existing crust older than this because