STS-109 Earth Sciences and Image Analysis Debriefing with Crewmembers
April 9, 2002

ISLANDS
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View larger image for STS109-722-91
STS109-722-91
Zanzibar Island, Tanzania: This reef-rimmed platform formed during rifting and ocean formation, which occurred when the supercontinent of Pangaea broke up about 200 million years ago. The higher flight elevation of this mission permits documentation of the geologic setting for reef development, whereas lower flight elevations are better for nadir reef-mapping views.
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STS109-722-90
Pemba Island, Tanzania: Pemba is part of the same platform complex as Zanzibar. Other rifted margins that have been colonized by reefs include northwestern Australia around Exmouth Gulf, the Great Barrier Reef of eastern Australia, and the Bahama Banks.
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STS109-714-69
Puerto Rico: A rare, cloud free, synoptic view of the entire island captured in sunglint.
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STS109-711-52
Haiti, Dominican Republic: Rare cloud free, synoptic view of the entire island of Hispaniola-- with the eastern tip of Cuba and some southern Bahama islands.
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STS109-E-5404
Santo Domingo, Dominican Republic: This early morning photo with its oblique aspect and low light provides an excellent 3-dimensional view of the eastern end of the mountainous island of Hispaniola. Most of the capital city of Santo Domingo is visible in the extreme upper right corner of the scene.
View larger image for STS109-719-84
STS109-719-84
Turks and Caicos Islands, SE Bahama Bank and Great Inagua Island: The Turks and Caicos (U.K.) are in the southern Bahamas chain, part of the shallow marine platform that was created when Africa and South America rifted away from North America to form the Atlantic.
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STS109-714-62
Great Inagua Island, Bahamas
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STS109-714-63
Turks and Caicos Islands, detail: Light streaks and patches of carbonate sand (shell particles, grains of limestone) are seen on the shallow platform (turquoise) where waters are a few meters deep. On the north side of the islands, surf is breaking on the barrier reef. Just south of the coast of N. Caicos Island is a blue hole, formed by submarine dissolution of the limestone platform.
View larger image for STS109-718-102
STS109-718-102
Galapagos Islands: Equatorial E. Pacific. Seahorse-shaped Isabella and more rounded Fernandina are volcanic islands generated by a mantle hotspot offshore from Ecuador. The hotspot rises at the junction of the Cocos oceanic plate on the north and the Nazca plate on the south and east. Volcanic craters on Isabella are aligned along a north-trending fault of the plate boundary system.
View larger image for STS109-716-181
STS109-716-181
Galapagos Islands: In sunglint. Deflection of currents around the islands and trains of internal waves are beautifully revealed in the sunglint.
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