
STS079-811-38
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N. American-Pacific Tectonic Plate Boundary: An exceptional
southeastward view of the boundary between the North American and
Pacific tectonic plates in central California. On the west are the
forested Sierra Nevada and the central valley, which formed during
collision of the two plates about 90 million years ago. The
collisional margin evolved to a transform one about 30 million years
ago; the San Andreas fault is the best-known element of that
transform fault system. Lake Tahoe and Mono Lake are visible in the
eastern Sierra Nevada, beyond which extends the Basin and Range
province of stretched continental crust.
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STS079-808-21
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Western Branch, East African Rift: This northeastward photo is
the first clear coverage of the transform fault zone that links the
Lake Tanganyka and Lake Malawi rift valleys in the western branch of
the East African rift. Fault-bounded Lake Rukwa occupies much of the
transform zone. The photograph permits visual comparison of these
East African rift/transform structures with those of the Border
Corridor transform in the Rio Grande rift of West Texas and adjacent
Mexico (from El Paso to Big Bend National Park). Smoke from fires can
be seen throughout the region, and another frame in this series
(Frame 024) includes the gorilla habitat in the Virunga Mts. north of
Lake Kivu.
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STS079-792-20
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Typhoon Violet: Typhoon Violet, W. Pacific Ocean.
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STS079-817-31
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Low Pressure System: The Mir over Indian Ocean low pressure
system. (50S, 68E)
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STS079-785-103
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Rondonia, Brazil: Deforestation in Rondonia, Brazil.
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STS079-821-60
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Growing Islands in the Aral Sea: Growing islands in the Aral
Sea indicate a continuing decline of lake level.
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