1 / 7

Sea Floor

Sea Floor. Sediments of the Ocean Floor. Sediment: a gathering of loose material that form layers Classified by: size, origin, and chemical composition. Four types of sediment: Lithogenous, Cosmogenous, Hydrogenous, Biogenous. Lithogenous.

ron
Download Presentation

Sea Floor

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Sea Floor

  2. Sediments of the Ocean Floor • Sediment: a gathering of loose material that form layers Classified by: size, origin, and chemical composition. • Four types of sediment: Lithogenous, Cosmogenous, Hydrogenous, Biogenous.

  3. Lithogenous • Derived from rocks at or above sea level that have been weathered by wind, rain, freezing/thawing. • Carried by rivers, wind, gravity, rain runoff, Ice Glaciers

  4. Cosmogenous • Derived from small particle of space material that penetrates the atmosphere. • Tektites: Spray out of the material formed by particles

  5. Hydrogenous • Produced by chemical processes in sea water • Example: Calcium Carbonates, manganese nodules

  6. Biogenous • Derived from once living organisms A) Calcarous ooze: derived from calcium that percipitate out of warm water; Calcium is soluble in cold water. B) Siliceous ooze: derived from plants & animals found all over the oceans 1) Diatomaceous ooze: Diatom small single-celled plants in temperate and polar regions

  7. Sampling methods • Dredge- large amount. NOT specific • Grab Sample- not as large of a sample. More specific. Surface of sediment. • Core Sampler- small sample. Very specific • Largest substance mined from the ocean by U.S. is sand and gravel.

More Related