click below
click below
Normal Size Small Size show me how
Oceanogrphy Chap 12
Question | Answer |
---|---|
Methods that Scientists use to study sediment. | Clamshell sampler, piston corer, drilling ships |
The study of layers under the ocean that scientists use | Stratigraphy |
Sediments that originate from organisms are called what? | Biogenous |
Sand and clay sediments which are the most abundant? | Lithogenous |
Sediment particles have a size classification based on what? | It's diameter |
What is the most easily eroded sediment? | Sand |
Continental shelf sedimentation is controlled mostly by what factors? | Tides, waves, and currents |
Course continental-shelf deposits from a lower sea level? | relict sediments |
Continental shelf sedimentation occurs_____ than deep-ocean sedimentation. | Faster |
Deep-ocean sediment has more of this than continental-shelf sediment. | Biogenous sediment |
What deposits are mostly found below the carbonate compensation depth because calcareous material dissolves quickly. | Siliceous |
The reason that deep-ocean sediment has the same composition as the surface water above it. | Fecal pellets (Copepod waste) |
Deep-ocean nodules are believed to form by what process? | A Biological process around a nucleus |
Currently, what are the most important economic resources found in ocean sediments? | Oil and natural gas |