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Supplementary
Materials
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2
Continent
-
wide drainage reorganization in North America driven by mantle flow
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Huilin Wang
1,2,3 *
, Michael Gurnis
1
& Jakob Skogseid
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4
1
Seismological Laboratory, California Institute of Technology, Pasadena, CA, USA
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2
MOE Key Laboratory of Fundam
ental Physical Quantities Measurement & Hubei Key
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Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong
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University of Science and Technology, Wuhan, 430074, P.R.China
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3
Institute of Geophysics and PGM, Huazhong University of
Science and Technology, Wuhan,
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430074, P.R.China
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4
Equinor ASA, Fornebu, Norway
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12
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This file contains four supplementary figures
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Figures S1, S2, S3 and S
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16
2
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Fig
ure
S1. Removed Laramide relief.
All elevation higher than 2 km in the Western
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Cordillera is removed in the initial model, and added back to surface process models
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uniformly between 80 to 50 Ma to simulate the Laramide uplift.
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20°
40°
30°
50°N
120°
110°
100°
90°
80°
70°
Latitude
Longitude
Relief (km)
0
1
2
3
3
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Fig
ure
S2.
Paleo
-
elevation
(left panel)
and
paleo
-
drainage
(right panel)
of Models
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3
in a North American reference frame
.
This model assumes no dynamic topography
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influences the landscape.
In Comparing Model 3 with 1 and 2 we can see that the way
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the Laramide uplift modified the river patterns is re
stricted to the western continent, but
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is not adequate to influence the broader drainage changes.
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