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Himalayas from space

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Himalayas from space – PowerPoint PPT presentation

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Title: Himalayas from space


1
Himalayas from space
S
N
India
China/Tibet
2
Himalayan orogen composite satellite image
N
China/Tibet
India
S
3
India/Asia collision movie
4
Himalayan orogen thickening by large-scale
thrusting (and some
magmatism)
5
Alpine orogen
Eurasia
Africa
6
Alpine orogen thickening by nappe
formation thin skin tectonics
7
Hawaii thickening by magmatism alone
8
Hawaii thickening by magmatism alone
9
Andean orogen
10
Andean orogen ductile strain of pre-existing
rocks, plus magmatic additions. Large-scale
thrusting in center.
See also The Cascades Japan Sierras during the
mesozoic
11
Rockies (part of the Laramide orogen)
Cascades
Sierras
Basin and range
Rockies
Colorado plateau
12
Rocky mountains Flat subduction moves
location of maximum ductile thickening, faulting
and magmatism far in-board of subduction zone
And/or rotation of the cold, thick, rigid
Colorado plateau
13
Basin and Range - western US
14
Basin and Range mountainous topography
created by thinning rather than thickening
15
Large plateaus Faulting and ductile strain,
coupled with climate?
Tibet Bolivian Altiplano Colorado plateau
16
Large plateaus Delamination of a dense root?
Tibet Bolivian Altiplano Modern Sierran
topography
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