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Deep Sea Sedimentation Pelagic sedimentation -red clays -brown clays

Deep Sea Sedimentation Pelagic sedimentation -red clays -brown clays b. Biogenic sedimentation -calcareous -siliceous c. turbidites-coarse material in deep ocean d. Ice rafting e. Manganese nodules. From http://www.indiana.edu/~g131/floor3N.html.

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Deep Sea Sedimentation Pelagic sedimentation -red clays -brown clays

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  1. Deep Sea Sedimentation • Pelagic sedimentation • -red clays • -brown clays • b. Biogenic sedimentation • -calcareous • -siliceous • c. turbidites-coarse material in deep ocean • d. Ice rafting • e. Manganese nodules

  2. From http://www.indiana.edu/~g131/floor3N.html

  3. Bouma sequences: vertical stacking and lateral continuity of facies… http://www.usask.ca/geology/classes/geol243/243notes/243week4b.html

  4. Einstein Channel Seismic Facies Show Distinct Parts of a Leveed Channel That Link to Depositional History

  5. Two Wells Link Sedimentary Character to Seismic Facies for the Einstein Channel

  6. Linear Submarine Channel and Lobe System Lobe Small Sinuous Channel Channel A. Smith, 1/99

  7. Sidescan Sonar Shows Amazon Fan Channels Are Highly Sinuous But Not Actively Meandering (Few Cut-Off Loops or Scrolls)

  8. Youngest Channel Deposits: Massive Turbidite Sands

  9. Contact between Youngest Channel and Older Channel

  10. Brazos-Trinity Fan Beaubouef and Friedmann, 2000

  11. Brazos-Trinity Fan Beaubouef and Friedmann, 2000

  12. Congo River Submarine canyon- Note sinuous patterni- in 3000m plus water Depths!! from Vittori et al 2000

  13. Multiple sinuouschannels on thisdeep sea fan…. from Vittori et al 2000

  14. Popo Channel, Guadalupe Mtns W Texas

  15. What are Manganese Nodules? • Ferromanganese nodules are small (typically pea to golf ball sized) deposits that exist in the deep ocean • They were first discovered on the ocean floor in 1803 • They contain a relatively high percentage of the metals manganese, iron nickel, copper, and cobalt

  16. What are Manganese Nodules? • Mn Nodules are formed in situ from of metals and other minerals that have accumulated around a core • Common core materials include shark teeth, whale bone or meteorite fragment. • They grow very slowly (~mm/million years) and can be tens of millions of years old. http://www.ngdc.noaa.gov/mgg/geology/sionar.html

  17. Composition of Manganese Nodules Libes (1992)

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