ICONS atlas: NAM - Great Basin

Regional basin list

To view the data for individual basins, select a basin from the dropdown menu below or click the basin name in the overview table. This will open a separate page with detailed maps.

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Overview

This page bundles the available data for the Great Basin in the North 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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Great Basin location map

Basin name	Great Basin
Region code	NAM
Basin ID	1078
Plate location/code	/

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.

Great Basin cross section

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Dynamic topography evolution for basin centroid

Great 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

Great Basin location map

Statistics - Mantle Lid thickness
Median	63.876
Mean	66.838
Scale	16.793
stdev	18.292
Z_min/Location	34.848/41.0°Lat -119.0°Lon
Z_max/Location	109.469/ 41.0°Lat -112.0°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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Depth of 550 deg isotherm

Great Basin location map

Statistics - Depth of 550 deg isotherm
Median	-32.200
Mean	-32.943
Scale	2.714
stdev	3.377
Z_min/Location	-41.000/41.0°Lat -112.0°Lon
Z_max/Location	-27.000/ 41.0°Lat -119.0°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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Mobil isopachs

Great Basin location map

Statistics - Mobil isopachs
Median	-0.053
Mean	-0.229
Scale	0.410
stdev	0.469
Z_min/Location	-1.348/40.4°Lat -112.967°Lon
Z_max/Location	0.366/ 38.1°Lat -117.7°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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Plain crustal thickness

Great Basin location map

Statistics - Plain crustal thickness
Median	31.586
Mean	32.371
Scale	2.081
stdev	2.345
Z_min/Location	29.721/41.1°Lat -114.7°Lon
Z_max/Location	39.612/ 38.1°Lat -117.7°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

Great Basin location map

Statistics - Base middle crust
Median	-19.864
Mean	-20.259
Scale	1.970
stdev	1.805
Z_min/Location	-25.405/40.4667°Lat -119.5°Lon
Z_max/Location	-17.983/ 41.0333°Lat -114.733°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

Great Basin location map

Statistics - Base lower crust
Median	-30.643
Mean	-31.291
Scale	2.556
stdev	2.457
Z_min/Location	-38.278/38.0667°Lat -117.7°Lon
Z_max/Location	-28.234/ 41.1°Lat -114.7°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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Total crustal thickness

Great Basin location map

Statistics - Total crustal thickness
Median	32.074
Mean	32.886
Scale	2.097
stdev	2.359
Z_min/Location	30.225/41.1°Lat -114.7°Lon
Z_max/Location	39.978/ 38.1°Lat -117.7°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 upper crust

Great Basin location map

Statistics - Base upper crust
Median	-9.384
Mean	-9.449
Scale	1.005
stdev	0.813
Z_min/Location	-11.420/37.6333°Lat -118.467°Lon
Z_max/Location	-8.253/ 40.5667°Lat -115.2°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

Great Basin location map

Statistics - Thermal lithospheric thickness
Median	95.843
Mean	99.724
Scale	14.021
stdev	16.956
Z_min/Location	70.000/41.0°Lat -119.0°Lon
Z_max/Location	140.000/ 41.0°Lat -112.0°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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Heatflow

Great Basin location map

Statistics - Heatflow
Median	114.959
Mean	114.773
Scale	10.161
stdev	8.756
Z_min/Location	95.347/37.5667°Lat -118.5°Lon
Z_max/Location	132.442/ 38.0333°Lat -115.967°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)

Great Basin location map

Statistics - Topography (ETOPO2)
Median	1506.000
Mean	1568.140
Scale	367.685
stdev	430.228
Z_min/Location	-79.000/36.5333°Lat -117.0°Lon
Z_max/Location	3813.000/ 39.0°Lat -114.333°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

Great Basin location map

Statistics - Base hard sediments
Median	1.146
Mean	1.080
Scale	0.312
stdev	0.398
Z_min/Location	-0.744/36.7667°Lat -117.567°Lon
Z_max/Location	1.539/ 40.4°Lat -114.833°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

Great Basin location map

Statistics - Temperature at 50km depth
Median	858.527
Mean	856.289
Scale	67.774
stdev	90.313
Z_min/Location	675.000/41.0°Lat -112.0°Lon
Z_max/Location	1052.000/ 41.0°Lat -119.0°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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Laske sediment thickness

Great Basin location map

Statistics - Laske sediment thickness
Median	0.143
Mean	0.197
Scale	0.078
stdev	0.204
Z_min/Location	-0.046/37.0667°Lat -117.733°Lon
Z_max/Location	1.333/ 38.0333°Lat -113.1°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

Great Basin location map

Statistics - Lithospheric temperature gradient
Median	9.597
Mean	10.573
Scale	2.074
stdev	3.320
Z_min/Location	6.940/41.0°Lat -112.0°Lon
Z_max/Location	19.484/ 41.0°Lat -119.0°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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Computations

Isostatic correction

Great Basin location map

Statistics - Isostatic correction
Median	0.062
Mean	0.085
Scale	0.033
stdev	0.086
Z_min/Location	0.000/42.5667°Lat -119.0°Lon
Z_max/Location	0.560/38.0333°Lat -113.1°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)

Great Basin location map

Statistics - TTS (sediment)
Median	-1.214
Mean	-1.165
Scale	0.350
stdev	0.409
Z_min/Location	-1.670/39.9667°Lat -117.833°Lon
Z_max/Location	0.744/36.7667°Lat -117.567°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)

Great Basin location map

Statistics - Beta (Sediment)
Median	0.866
Mean	0.872
Scale	0.033
stdev	0.043
Z_min/Location	0.824/39.9667°Lat -117.833°Lon
Z_max/Location	1.105/36.7667°Lat -117.567°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.

Great Basin location map

Statistics - Crustal vs lithosph. extn.
Median	0.007
Mean	0.000
Scale	0.222
stdev	0.208
Z_min/Location	-0.453/41.0°Lat -119.0°Lon
Z_max/Location	0.372/41.0°Lat -112.0°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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Anomalous TTS

Great Basin location map

Statistics - Anomalous TTS
Median	-1.082
Mean	-1.003
Scale	0.839
stdev	0.766
Z_min/Location	-2.073/40.9333°Lat -114.8°Lon
Z_max/Location	1.217/37.1°Lat -118.033°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

Great Basin location map

Statistics - Predicted elevation
Median	1270.950
Mean	1227.630
Scale	431.429
stdev	400.286
Z_min/Location	346.685/41.0°Lat -112.0°Lon
Z_max/Location	1923.090/39.2667°Lat -118.133°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)

Great Basin location map

Statistics - Beta (Crust)
Median	1.004
Mean	0.985
Scale	0.068
stdev	0.067
Z_min/Location	0.801/38.1°Lat -117.7°Lon
Z_max/Location	1.067/41.1°Lat -114.7°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)

Great Basin location map

Statistics - TTS (crust)
Median	0.031
Mean	-0.162
Scale	0.513
stdev	0.578
Z_min/Location	-1.948/38.1°Lat -117.7°Lon
Z_max/Location	0.491/41.1°Lat -114.7°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

Great Basin location map

Statistics - Differential Beta
Median	-0.119
Mean	-0.112
Scale	0.099
stdev	0.087
Z_min/Location	-0.235/40.9333°Lat -114.8°Lon
Z_max/Location	0.153/36.7667°Lat -117.567°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 02:36:48 CEST | © Christian Heine, School of Geosciences, Sydney University, Australia