ICONS atlas: SAM - Amazonas Basin

Regional basin list

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Overview

This page bundles the available data for the Amazonas Basin in the South America. The images are hyperlinks and will open up a separate window with a high resolution PDF image of the map.
The basin data is derived from a lower resolution grid which has been upsampled using GMT. This could have introduced an accuracy which is beyond the original data resolution.

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Amazonas Basin location map

Basin name	Amazonas Basin
Region code	SAM
Basin ID	2002
Plate location/code	intra-cratonic/INC

Basin cross section

The basin cross section is automatically generated using the available crustal structure data sets. Sometimes the data labels are not plotted correctly, depending on the length of the section.

The location of the profile is indicated in all maps as dashed-dotted thin black line. For the endpoints of the profile, the two points of a given polygon located farthest away from each other were computed.

Amazonas Basin cross section

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Dynamic topography evolution for basin centroid

Amazonas Basin dynamic topography through time

The dynamic topography history for the basin is derived by tracking the basin centroid. The paleo-location for this point is computed using the EarthByte plate kinematic framework rotating the position back in time.

The dynamic topography model is derived from the S20RTS seismic tomography model (Ritsema et al., 99) by converting seismic velocites to density anomalies using an empirical scaling factor of 0.25. The density anomalies are then advected back in time to compute mantle flow with plate motions superimposed (using the EarthByte plate rotation framework) as surface boundary conditions. The dynamic topography is then derived from the computed density distribution using a free upper boundary. For details regarding the methodology see the following papers:

B. Steinberger, H. Schmeling, and G. Marquart. Large-scale lithospheric stress field and topography induced by global mantle circulation. Earth Planet. Sci. Lett., 186:75-91, 2001.
doi: 10.1016/S0012-821X(01)00229-1.
B. Steinberger. Effects of latent heat release at phase boundaries on flow in the Earth's mantle, phase boundary topography and dynamic topography at the Earth's surface. Phys. Earth Planet. Int., 164:2-20, 2007.
doi: 10.1016/j.pepi.2007.04.021.

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Observations

Mantle Lid thickness

Amazonas Basin location map

Statistics - Mantle Lid thickness
Median	145.284
Mean	148.820
Scale	18.149
stdev	22.715
Z_min/Location	97.658/-3.7°Lat -48.3333°Lon
Z_max/Location	219.274/ -1.2°Lat -58.0667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Depth of 550 deg isotherm

Amazonas Basin location map

Statistics - Depth of 550 deg isotherm
Median	-48.568
Mean	-50.238
Scale	2.744
stdev	5.687
Z_min/Location	-73.014/-1.2°Lat -58.0667°Lon
Z_max/Location	-39.959/ -4.96667°Lat -48.9°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Mobil isopachs

Amazonas Basin location map

Statistics - Mobil isopachs
Median	1.742
Mean	1.832
Scale	1.300
stdev	1.184
Z_min/Location	-0.243/-0.666667°Lat -56.7667°Lon
Z_max/Location	4.525/ -3.03333°Lat -57.0667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Plain crustal thickness

Amazonas Basin location map

Statistics - Plain crustal thickness
Median	38.843
Mean	38.828
Scale	1.342
stdev	1.051
Z_min/Location	36.229/-0.466667°Lat -51.0667°Lon
Z_max/Location	41.390/ -0.633333°Lat -52.7°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Base middle crust

Amazonas Basin location map

Statistics - Base middle crust
Median	-31.274
Mean	-30.165
Scale	1.736
stdev	2.532
Z_min/Location	-33.627/-0.733333°Lat -52.6667°Lon
Z_max/Location	-24.343/ -4.66667°Lat -57.0°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Base lower crust

Amazonas Basin location map

Statistics - Base lower crust
Median	-40.649
Mean	-40.087
Scale	0.815
stdev	1.313
Z_min/Location	-42.312/-0.666667°Lat -52.6667°Lon
Z_max/Location	-36.553/ -4.3°Lat -55.6667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Total crustal thickness

Amazonas Basin location map

Statistics - Total crustal thickness
Median	40.702
Mean	40.155
Scale	0.809
stdev	1.290
Z_min/Location	36.673/-4.3°Lat -55.6667°Lon
Z_max/Location	42.408/ -0.633333°Lat -52.6667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Base upper crust

Amazonas Basin location map

Statistics - Base upper crust
Median	-16.782
Mean	-16.216
Scale	1.338
stdev	1.556
Z_min/Location	-18.326/-1.43333°Lat -56.6667°Lon
Z_max/Location	-12.548/ -4.33333°Lat -55.7333°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Thermal lithospheric thickness

Amazonas Basin location map

Statistics - Thermal lithospheric thickness
Median	185.098
Mean	188.975
Scale	17.410
stdev	23.009
Z_min/Location	135.684/-4.96667°Lat -48.9°Lon
Z_max/Location	260.601/ -1.2°Lat -58.0667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Heatflow

Amazonas Basin location map

Statistics - Heatflow
Median	47.660
Mean	48.578
Scale	1.573
stdev	2.444
Z_min/Location	46.011/-3.8°Lat -62.1333°Lon
Z_max/Location	57.648/ -0.466667°Lat -51.0667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Topography (ETOPO2)

Amazonas Basin location map

Statistics - Topography (ETOPO2)
Median	56.000
Mean	62.494
Scale	48.926
stdev	48.242
Z_min/Location	-32.000/-0.533333°Lat -51.4667°Lon
Z_max/Location	391.000/ -0.766667°Lat -53.1667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Base hard sediments

Amazonas Basin location map

Statistics - Base hard sediments
Median	-1.018
Mean	-1.259
Scale	0.749
stdev	0.852
Z_min/Location	-3.206/-1.96667°Lat -57.0°Lon
Z_max/Location	0.331/ -4.33333°Lat -55.7333°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Temperature at 50km depth

Amazonas Basin location map

Statistics - Temperature at 50km depth
Median	575.281
Mean	571.542
Scale	25.930
stdev	39.800
Z_min/Location	459.421/-1.2°Lat -58.0667°Lon
Z_max/Location	691.974/ -4.96667°Lat -48.9°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Laske sediment thickness

Amazonas Basin location map

Statistics - Laske sediment thickness
Median	1.515
Mean	1.670
Scale	1.266
stdev	1.123
Z_min/Location	-0.070/-3.33333°Lat -50.2°Lon
Z_max/Location	4.502/ -2.96667°Lat -57.9667°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Lithospheric temperature gradient

Amazonas Basin location map

Statistics - Lithospheric temperature gradient
Median	5.292
Mean	5.310
Scale	0.530
stdev	0.565
Z_min/Location	4.082/-1.13333°Lat -57.8667°Lon
Z_max/Location	6.945/ -4.96667°Lat -48.9°Lon

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Computations

Isostatic correction

Amazonas Basin location map

Statistics - Isostatic correction
Median	0.634
Mean	0.683
Scale	0.509
stdev	0.442
Z_min/Location	0.000/-3.0°Lat -50.4°Lon
Z_max/Location	1.744/-2.96667°Lat -57.9667°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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TTS (sediment)

Amazonas Basin location map

Statistics - TTS (sediment)
Median	0.420
Mean	0.576
Scale	0.454
stdev	0.584
Z_min/Location	-0.440/-4.33333°Lat -55.7333°Lon
Z_max/Location	2.141/-1.63333°Lat -57.9°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Beta (Sediment)

Amazonas Basin location map

Statistics - Beta (Sediment)
Median	1.057
Mean	1.087
Scale	0.063
stdev	0.096
Z_min/Location	0.947/-4.33333°Lat -55.7333°Lon
Z_max/Location	1.377/-1.63333°Lat -57.9°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Crustal vs lithosph. extn.

Amazonas Basin location map

Statistics - Crustal vs lithosph. extn.
Median	-0.093
Mean	-0.091
Scale	0.121
stdev	0.133
Z_min/Location	-0.464/-3.7°Lat -48.3333°Lon
Z_max/Location	0.216/-1.2°Lat -58.0667°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Anomalous TTS

Amazonas Basin location map

Statistics - Anomalous TTS
Median	0.612
Mean	0.630
Scale	0.629
stdev	0.615
Z_min/Location	-0.779/-4.33333°Lat -55.7333°Lon
Z_max/Location	2.103/-1.46667°Lat -57.9333°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Predicted elevation

Amazonas Basin location map

Statistics - Predicted elevation
Median	403.329
Mean	340.061
Scale	350.188
stdev	395.617
Z_min/Location	-927.807/-1.2°Lat -58.0667°Lon
Z_max/Location	1184.700/-3.0°Lat -49.0°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Beta (Crust)

Amazonas Basin location map

Statistics - Beta (Crust)
Median	0.993
Mean	0.994
Scale	0.034
stdev	0.027
Z_min/Location	0.932/-0.633333°Lat -52.7°Lon
Z_max/Location	1.064/-0.466667°Lat -51.0667°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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TTS (crust)

Amazonas Basin location map

Statistics - TTS (crust)
Median	-0.057
Mean	-0.054
Scale	0.272
stdev	0.213
Z_min/Location	-0.574/-0.633333°Lat -52.7°Lon
Z_max/Location	0.473/-0.466667°Lat -51.0667°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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Differential Beta

Amazonas Basin location map

Statistics - Differential Beta
Median	0.081
Mean	0.093
Scale	0.088
stdev	0.099
Z_min/Location	-0.099/-4.33333°Lat -55.7333°Lon
Z_max/Location	0.371/-1.56667°Lat -57.9333°Lon

Comments

For explanation to the data source or computation of this grid please follow this link. Clicking the image will open a high-res PDF of the map. Units in the statistics table are same as map units. Z_min and Z_max refer to the minima and maxima with their respective geographic locations.

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This basin data is based on interpolated global grids and might contain gridding errors or wrongly interpolated data values.

Page generated 2008-08-03 02:36:53 CEST | © Christian Heine, School of Geosciences, Sydney University, Australia