ICONS atlas: NAM - Fort Worth Basin

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Overview

This page bundles the available data for the Fort Worth 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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Fort Worth Basin location map
Basin name Fort Worth Basin
Region code NAM
Basin ID 1064
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.

Fort Worth Basin cross section
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Dynamic topography evolution for basin centroid
Fort Worth 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
Fort Worth Basin location map
Statistics - Mantle Lid thickness
Median 86.543
Mean 86.733
Scale 0.321
stdev 0.543
Z_min/Location 86.067/33.9333°Lat -98.0333°Lon
Z_max/Location 88.585/ 32.4667°Lat -98.0667°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
Fort Worth Basin location map
Statistics - Depth of 550 deg isotherm
Median -40.000
Mean -40.001
Scale 0.001
stdev 0.006
Z_min/Location -40.004/33.9333°Lat -98.5°Lon
Z_max/Location -39.995/ 32.5333°Lat -97.9667°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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Mobil isopachs
Fort Worth Basin location map
Statistics - Mobil isopachs
Median 1.892
Mean 1.828
Scale 0.667
stdev 0.585
Z_min/Location 0.527/33.9°Lat -98.9333°Lon
Z_max/Location 3.084/ 33.8°Lat -97.6667°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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Plain crustal thickness
Fort Worth Basin location map
Statistics - Plain crustal thickness
Median 42.906
Mean 42.807
Scale 0.434
stdev 0.465
Z_min/Location 41.367/32.5333°Lat -97.9667°Lon
Z_max/Location 43.419/ 33.9°Lat -98.7667°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
Fort Worth Basin location map
Statistics - Base middle crust
Median -34.168
Mean -34.049
Scale 0.374
stdev 0.440
Z_min/Location -34.634/33.9333°Lat -98.3333°Lon
Z_max/Location -32.679/ 32.5333°Lat -97.9667°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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Base lower crust
Fort Worth Basin location map
Statistics - Base lower crust
Median -44.851
Mean -44.610
Scale 0.873
stdev 0.938
Z_min/Location -45.834/33.9333°Lat -98.5667°Lon
Z_max/Location -42.038/ 32.4667°Lat -98.0667°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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Total crustal thickness
Fort Worth Basin location map
Statistics - Total crustal thickness
Median 45.296
Mean 45.070
Scale 0.874
stdev 0.934
Z_min/Location 42.518/32.4667°Lat -98.0667°Lon
Z_max/Location 46.316/ 33.9333°Lat -98.5667°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
Fort Worth Basin location map
Statistics - Base upper crust
Median -18.164
Mean -18.082
Scale 0.306
stdev 0.338
Z_min/Location -18.554/33.9333°Lat -98.1°Lon
Z_max/Location -17.132/ 32.5333°Lat -97.9667°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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Thermal lithospheric thickness
Fort Worth Basin location map
Statistics - Thermal lithospheric thickness
Median 131.832
Mean 131.803
Scale 0.499
stdev 0.452
Z_min/Location 131.075/33.0333°Lat -97.9333°Lon
Z_max/Location 132.838/ 33.9°Lat -98.9333°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
Fort Worth Basin location map
Statistics - Heatflow
Median 52.181
Mean 52.246
Scale 0.422
stdev 0.386
Z_min/Location 51.664/33.9333°Lat -97.9667°Lon
Z_max/Location 53.226/ 32.4333°Lat -98.2667°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)
Fort Worth Basin location map
Statistics - Topography (ETOPO2)
Median 307.000
Mean 309.180
Scale 32.617
stdev 34.863
Z_min/Location 216.000/32.7°Lat -98.1333°Lon
Z_max/Location 426.000/ 33.2333°Lat -98.4333°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
Fort Worth Basin location map
Statistics - Base hard sediments
Median -1.900
Mean -1.805
Scale 0.554
stdev 0.511
Z_min/Location -2.531/33.9333°Lat -97.9667°Lon
Z_max/Location -0.634/ 32.4333°Lat -98.2667°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
Fort Worth Basin location map
Statistics - Temperature at 50km depth
Median 701.459
Mean 701.578
Scale 1.671
stdev 1.376
Z_min/Location 698.968/33.9333°Lat -98.5667°Lon
Z_max/Location 703.854/ 32.5333°Lat -97.9667°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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Laske sediment thickness
Fort Worth Basin location map
Statistics - Laske sediment thickness
Median 2.316
Mean 2.282
Scale 0.577
stdev 0.543
Z_min/Location 1.226/32.4333°Lat -98.2667°Lon
Z_max/Location 3.638/ 33.8°Lat -97.6667°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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Lithospheric temperature gradient
Fort Worth Basin location map
Statistics - Lithospheric temperature gradient
Median 7.292
Mean 7.295
Scale 0.036
stdev 0.033
Z_min/Location 7.216/33.9°Lat -98.9333°Lon
Z_max/Location 7.351/ 32.5333°Lat -97.9667°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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Computations

Isostatic correction
Fort Worth Basin location map
Statistics - Isostatic correction
Median 0.950
Mean 0.934
Scale 0.223
stdev 0.210
Z_min/Location 0.517/32.4333°Lat -98.2667°Lon
Z_max/Location 1.442/33.8°Lat -97.6667°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)
Fort Worth Basin location map
Statistics - TTS (sediment)
Median 0.949
Mean 0.871
Scale 0.317
stdev 0.322
Z_min/Location 0.094/32.4667°Lat -98.0667°Lon
Z_max/Location 1.327/33.9°Lat -98.9333°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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Beta (Sediment)
Fort Worth Basin location map
Statistics - Beta (Sediment)
Median 1.138
Mean 1.128
Scale 0.053
stdev 0.051
Z_min/Location 1.012/32.4667°Lat -98.0667°Lon
Z_max/Location 1.204/33.9°Lat -98.9333°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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Crustal vs lithosph. extn.
Fort Worth Basin location map
Statistics - Crustal vs lithosph. extn.
Median -0.010
Mean -0.007
Scale 0.006
stdev 0.008
Z_min/Location -0.015/33.7333°Lat -98.5333°Lon
Z_max/Location 0.021/32.5333°Lat -97.9667°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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Anomalous TTS
Fort Worth Basin location map
Statistics - Anomalous TTS
Median 1.046
Mean 0.955
Scale 0.388
stdev 0.404
Z_min/Location -0.081/32.4667°Lat -98.0667°Lon
Z_max/Location 1.521/33.9°Lat -98.9333°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
Fort Worth Basin location map
Statistics - Predicted elevation
Median 1577.480
Mean 1566.980
Scale 25.944
stdev 33.093
Z_min/Location 1462.270/32.4667°Lat -98.0667°Lon
Z_max/Location 1601.720/33.9333°Lat -98.5333°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)
Fort Worth Basin location map
Statistics - Beta (Crust)
Median 0.987
Mean 0.989
Scale 0.010
stdev 0.011
Z_min/Location 0.975/33.9°Lat -98.7667°Lon
Z_max/Location 1.024/32.5333°Lat -97.9667°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 (crust)
Fort Worth Basin location map
Statistics - TTS (crust)
Median -0.103
Mean -0.084
Scale 0.080
stdev 0.086
Z_min/Location -0.198/33.9°Lat -98.7667°Lon
Z_max/Location 0.181/32.5333°Lat -97.9667°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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Differential Beta
Fort Worth Basin location map
Statistics - Differential Beta
Median 0.151
Mean 0.138
Scale 0.061
stdev 0.061
Z_min/Location -0.011/32.4667°Lat -98.0667°Lon
Z_max/Location 0.229/33.9°Lat -98.9333°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 02:36:48 CEST | © Christian Heine, School of Geosciences, Sydney University, Australia