Mississippi River delta system from Space Shttle, 12685 - PowerPoint PPT Presentation

Title: Mississippi River delta system from Space Shttle, 12685


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Mississippi River delta system from Space Shttle,
1/26/85
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Sediment-laden Mississippi River water spreading
over clear Gulf of Mexico water during spring
flood in the birdfoot delta, March, 1994
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Sediment plume from Brazos River, Texas, into
Gulf of Mexico
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Ganges-Bramaphutra River Delta feeding the Ganges
submarine fan, Space Shuttle, October, 1989
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Salween River Delta, Burma
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Glaciogenic sediment in Gulf of Alaska, Space
Shuttle, August, 1989
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Dust storm in an arid, overgrazed area of Tunisia
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Sharan dust storm from Space Shuttle, May 13, 1992
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Saharan dust storm over Canary Islands, viewed
from Space Shuttle, October, 1994
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Sulfur dioxide from volcanic eruption of Mt.
Pinitubo (Phillipines) spreads west on trade
winds across Indiana Ocean and Africa (June 16,
19, 22, and 25, 1991).
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Negligible aerosols (dust) in atmosphere before
volcanic eruption of Mt. Pinitubo (Phillipines)
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Aerosols (dust) in atmosphere, immediately
following volcanic eruption of Mt. Pinitubo
(Phillipines)
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Aerosols (dust) in atmosphere, 2 years after
volcanic eruption of Pinitubo in Phillipines
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Impact glass from cosmogenous source, found in
deep sea sediment
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Grain of magnetite (iron oxide) from cosmogenous
source. Found in deep sea sediment.
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Planktonic foram - shell is calcareous, as are
all forams. SEM image magnified 550x
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Coccolith - a type of floating algae - plates
intact and not broken apart. Note bar scale 1
micron in length
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Deep sea ooze from 2850m - forams, radiolaria,
and sponge spicules - magnified 330x
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Diatoms (siliceous simple-celled planktonic
organisms), Pt. Concepcion, CA - 120 microns
across slide