ICONS atlas: NAM - Ardmore and Sherman Basins/Marietta Syncline

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Overview

This page bundles the available data for the Ardmore and Sherman Basins/Marietta Syncline 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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Ardmore and Sherman Basins/Marietta Syncline location map
Basin name Ardmore and Sherman Basins/Marietta Syncline
Region code NAM
Basin ID 1062
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.

Ardmore and Sherman Basins/Marietta Syncline cross section
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Dynamic topography evolution for basin centroid
Ardmore and Sherman Basins/Marietta Syncline 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
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Mantle Lid thickness
Median 87.922
Mean 87.975
Scale 0.251
stdev 0.252
Z_min/Location 87.558/34.2667°Lat -97.4667°Lon
Z_max/Location 88.557/ 34.2667°Lat -96.8667°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
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Depth of 550 deg isotherm
Median -40.017
Mean -40.017
Scale 0.004
stdev 0.004
Z_min/Location -40.025/34.3667°Lat -97.4667°Lon
Z_max/Location -40.009/ 34.1333°Lat -97.1°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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Mobil isopachs
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Mobil isopachs
Median 4.465
Mean 4.484
Scale 0.856
stdev 0.707
Z_min/Location 3.208/34.2667°Lat -96.8667°Lon
Z_max/Location 5.823/ 34.3667°Lat -97.4667°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
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Plain crustal thickness
Median 41.899
Mean 41.891
Scale 0.361
stdev 0.287
Z_min/Location 41.340/34.2667°Lat -96.8667°Lon
Z_max/Location 42.366/ 34.3°Lat -97.5°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
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Base middle crust
Median -34.432
Mean -34.432
Scale 0.196
stdev 0.161
Z_min/Location -34.721/34.3667°Lat -97.4667°Lon
Z_max/Location -34.129/ 34.2°Lat -96.9333°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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Base lower crust
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Base lower crust
Median -44.703
Mean -44.703
Scale 0.429
stdev 0.350
Z_min/Location -45.309/34.3333°Lat -97.5°Lon
Z_max/Location -44.076/ 34.2667°Lat -96.8667°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
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Total crustal thickness
Median 45.015
Mean 45.013
Scale 0.458
stdev 0.368
Z_min/Location 44.355/34.2667°Lat -96.8667°Lon
Z_max/Location 45.653/ 34.3333°Lat -97.5°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
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Base upper crust
Median -18.807
Mean -18.802
Scale 0.046
stdev 0.048
Z_min/Location -18.891/34.3667°Lat -97.3667°Lon
Z_max/Location -18.680/ 34.1333°Lat -97.1°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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Thermal lithospheric thickness
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Thermal lithospheric thickness
Median 133.003
Mean 132.988
Scale 0.226
stdev 0.198
Z_min/Location 132.516/34.1333°Lat -97.1°Lon
Z_max/Location 133.391/ 34.3667°Lat -97.4667°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
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Heatflow
Median 51.933
Mean 51.932
Scale 0.047
stdev 0.040
Z_min/Location 51.855/34.2667°Lat -97.4667°Lon
Z_max/Location 52.018/ 34.3333°Lat -96.9667°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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Topography (ETOPO2)
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Topography (ETOPO2)
Median 261.500
Mean 259.833
Scale 28.911
stdev 26.379
Z_min/Location 205.000/34.2667°Lat -97.0°Lon
Z_max/Location 324.000/ 34.3333°Lat -97.5°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
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Base hard sediments
Median -2.805
Mean -2.815
Scale 0.082
stdev 0.072
Z_min/Location -2.977/34.3667°Lat -97.4667°Lon
Z_max/Location -2.684/ 34.1333°Lat -97.1°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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Temperature at 50km depth
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Temperature at 50km depth
Median 697.581
Mean 697.626
Scale 0.737
stdev 0.647
Z_min/Location 696.339/34.3667°Lat -97.4667°Lon
Z_max/Location 699.208/ 34.1333°Lat -97.1°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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Laske sediment thickness
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Laske sediment thickness
Median 4.274
Mean 4.250
Scale 0.117
stdev 0.131
Z_min/Location 3.936/34.3333°Lat -97.5°Lon
Z_max/Location 4.475/ 34.1333°Lat -97.1°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
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Lithospheric temperature gradient
Median 7.233
Mean 7.233
Scale 0.008
stdev 0.007
Z_min/Location 7.218/34.3333°Lat -96.9667°Lon
Z_max/Location 7.251/ 34.1333°Lat -97.1°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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Computations

Isostatic correction
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Isostatic correction
Median 1.666
Mean 1.658
Scale 0.040
stdev 0.045
Z_min/Location 1.548/34.3333°Lat -97.5°Lon
Z_max/Location 1.735/34.1333°Lat -97.1°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)
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - TTS (sediment)
Median 1.135
Mean 1.157
Scale 0.112
stdev 0.113
Z_min/Location 0.949/34.1333°Lat -97.1°Lon
Z_max/Location 1.426/34.3667°Lat -97.4667°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)
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Beta (Sediment)
Median 1.170
Mean 1.174
Scale 0.019
stdev 0.020
Z_min/Location 1.138/34.1333°Lat -97.1°Lon
Z_max/Location 1.223/34.3667°Lat -97.4667°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.
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Crustal vs lithosph. extn.
Median -0.003
Mean -0.002
Scale 0.007
stdev 0.006
Z_min/Location -0.012/34.3°Lat -97.5°Lon
Z_max/Location 0.010/34.2667°Lat -96.8667°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
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Anomalous TTS
Median 1.137
Mean 1.172
Scale 0.163
stdev 0.159
Z_min/Location 0.919/34.1333°Lat -97.1°Lon
Z_max/Location 1.522/34.3667°Lat -97.4667°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
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Predicted elevation
Median 1548.220
Mean 1547.620
Scale 15.510
stdev 12.625
Z_min/Location 1521.470/34.2667°Lat -96.8667°Lon
Z_max/Location 1568.180/34.3°Lat -97.5°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)
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Beta (Crust)
Median 0.998
Mean 0.998
Scale 0.009
stdev 0.007
Z_min/Location 0.987/34.3°Lat -97.5°Lon
Z_max/Location 1.011/34.2667°Lat -96.8667°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)
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - TTS (crust)
Median -0.017
Mean -0.015
Scale 0.068
stdev 0.054
Z_min/Location -0.104/34.3°Lat -97.5°Lon
Z_max/Location 0.088/34.2667°Lat -96.8667°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
Ardmore and Sherman Basins/Marietta Syncline location map
Statistics - Differential Beta
Median 0.171
Mean 0.176
Scale 0.026
stdev 0.026
Z_min/Location 0.134/34.1333°Lat -97.1°Lon
Z_max/Location 0.235/34.3667°Lat -97.4667°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