Presentation is loading. Please wait.

Presentation is loading. Please wait.

PACIFIC PLATE 45 mm/yr AUSTRALIAN PLATE TectonicsTectonics Lionel Carter NIWA.

Similar presentations


Presentation on theme: "PACIFIC PLATE 45 mm/yr AUSTRALIAN PLATE TectonicsTectonics Lionel Carter NIWA."— Presentation transcript:

1 PACIFIC PLATE 45 mm/yr AUSTRALIAN PLATE TectonicsTectonics Lionel Carter NIWA

2 Wp 35 Mt/y Uw 5 Mt/y Wa 15 Mt/y Sediment Supply Lionel Carter NIWA

3 Going Hyperpycnal  In Cyclone Bola 40. 10 6 t discharged in 6 days.  2m thick fluid mud layer on continental shelf.  Organisms smothered but recolonized 2 months later after mud dispersed Photograph by Dave Peacock GDC, August 2002 Lionel Carter NIWA

4 Climate and sediment input - ENSO Major storm events from Lake Tutira El Nino Southern Oscillation Index + + + + + + + + + + ? Lionel Carter NIWA

5 Shelf Currents From Chiswell, 2000 Lionel Carter NIWA

6 Scott Stephens, NIWA Poverty Bay Circulation Lionel Carter NIWA

7 Scott Stephens, NIWA onshore offshore Forced Circulation Lionel Carter NIWA

8 m Mud capture in shelf synclinal basins 1 1 Lionel Carter NIWA

9 Response of the deep ocean flux * MD2121 Lionel Carter NIWA

10 Where to next?  How does climate affect sediment input?  How will future climate affect delivery?  Tectonic control on sediment input?  Hyperpycnal vs hypopycnal dispersal?  Is there distant transport of nutrients to e.g., Fe-limited fronts? Lionel Carter NIWA


Download ppt "PACIFIC PLATE 45 mm/yr AUSTRALIAN PLATE TectonicsTectonics Lionel Carter NIWA."

Similar presentations


Ads by Google