ICONS atlas: AUS - Ngalia Basin

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Overview

This page bundles the available data for the Ngalia Basin in the Australia. 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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Ngalia Basin location map
Basin name Ngalia Basin
Region code AUS
Basin ID 8030
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.

Ngalia Basin cross section
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Dynamic topography evolution for basin centroid
Ngalia 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

OzSEEBASE depth2basement
Ngalia Basin location map
Statistics - OzSEEBASE depth2basement
Median -1.837
Mean -2.157
Scale 2.703
stdev 2.266
Z_min/Location -6.522/-22.5667°Lat 130.6°Lon
Z_max/Location 0.783/ -22.3667°Lat 131.333°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 middle crust
Ngalia Basin location map
Statistics - Base middle crust
Median -27.624
Mean -27.963
Scale 1.376
stdev 1.622
Z_min/Location -32.989/-22.7°Lat 133.267°Lon
Z_max/Location -25.393/ -22.8333°Lat 129.567°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)
Ngalia Basin location map
Statistics - Topography (ETOPO2)
Median 594.000
Mean 590.028
Scale 47.443
stdev 60.810
Z_min/Location 415.000/-22.8333°Lat 129.6°Lon
Z_max/Location 860.000/ -22.8333°Lat 131.8°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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OzSEEBASE sediment thickness
Ngalia Basin location map
Statistics - OzSEEBASE sediment thickness
Median 2.572
Mean 2.849
Scale 2.713
stdev 2.286
Z_min/Location 0.000/-22.2°Lat 130.967°Lon
Z_max/Location 7.377/ -22.3667°Lat 131.067°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
Ngalia Basin location map
Statistics - Mobil isopachs
Median -0.461
Mean -0.407
Scale 0.280
stdev 0.269
Z_min/Location -0.792/-22.5°Lat 132.867°Lon
Z_max/Location 0.224/ -22.8667°Lat 129.8°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
Ngalia Basin location map
Statistics - Plain crustal thickness
Median 38.941
Mean 39.538
Scale 1.432
stdev 2.141
Z_min/Location 36.316/-22.8333°Lat 129.567°Lon
Z_max/Location 46.651/ -22.7°Lat 133.267°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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GA crustal thickness
Ngalia Basin location map
Statistics - GA crustal thickness
Median 40.914
Mean 42.122
Scale 3.763
stdev 4.129
Z_min/Location 38.014/-22.4°Lat 131.233°Lon
Z_max/Location 51.470/ -22.7333°Lat 132.967°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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Base lower crust
Ngalia Basin location map
Statistics - Base lower crust
Median -41.313
Mean -41.605
Scale 2.385
stdev 2.533
Z_min/Location -48.717/-22.7°Lat 133.267°Lon
Z_max/Location -37.047/ -22.8333°Lat 129.567°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
Ngalia Basin location map
Statistics - Total crustal thickness
Median 41.900
Mean 42.180
Scale 2.448
stdev 2.573
Z_min/Location 37.530/-22.8333°Lat 129.567°Lon
Z_max/Location 49.340/ -22.7°Lat 133.267°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
Ngalia Basin location map
Statistics - Base upper crust
Median -15.087
Mean -15.169
Scale 0.870
stdev 0.865
Z_min/Location -17.535/-22.7°Lat 133.267°Lon
Z_max/Location -13.545/ -22.8333°Lat 129.567°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
Ngalia Basin location map
Statistics - Thermal lithospheric thickness
Median 159.633
Mean 158.991
Scale 2.883
stdev 3.071
Z_min/Location 152.327/-22.6333°Lat 133.167°Lon
Z_max/Location 165.173/ -22.2°Lat 130.967°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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Sediment thickness (Australia, GA)
Ngalia Basin location map
Statistics - Sediment thickness (Australia, GA)
Median 0.673
Mean 1.796
Scale 0.990
stdev 1.934
Z_min/Location -0.056/-22.8333°Lat 131.667°Lon
Z_max/Location 7.067/ -22.4333°Lat 132.033°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
Ngalia Basin location map
Statistics - Heatflow
Median 45.744
Mean 45.763
Scale 0.320
stdev 0.414
Z_min/Location 44.903/-22.7°Lat 133.267°Lon
Z_max/Location 46.726/ -22.8667°Lat 130.0°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
Ngalia Basin location map
Statistics - Depth of 550 deg isotherm
Median -44.770
Mean -44.577
Scale 0.408
stdev 0.538
Z_min/Location -45.544/-22.2°Lat 130.967°Lon
Z_max/Location -43.296/ -22.6333°Lat 133.167°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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Mantle Lid thickness
Ngalia Basin location map
Statistics - Mantle Lid thickness
Median 117.817
Mean 116.811
Scale 3.910
stdev 4.811
Z_min/Location 103.103/-22.7°Lat 133.267°Lon
Z_max/Location 124.929/ -22.2°Lat 130.967°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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Base hard sediments
Ngalia Basin location map
Statistics - Base hard sediments
Median -2.285
Mean -2.068
Scale 0.497
stdev 0.568
Z_min/Location -2.708/-22.7333°Lat 132.1°Lon
Z_max/Location -0.730/ -22.8333°Lat 129.567°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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OzSEEBASE crustal thickness
Ngalia Basin location map
Statistics - OzSEEBASE crustal thickness
Median 38.701
Mean 40.177
Scale 10.051
stdev 9.212
Z_min/Location 27.563/-22.5667°Lat 130.767°Lon
Z_max/Location 61.585/ -22.6333°Lat 133.167°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
Ngalia Basin location map
Statistics - Temperature at 50km depth
Median 623.470
Mean 625.697
Scale 6.740
stdev 7.690
Z_min/Location 611.360/-22.2°Lat 130.967°Lon
Z_max/Location 643.086/ -22.6333°Lat 133.167°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
Ngalia Basin location map
Statistics - Laske sediment thickness
Median 2.535
Mean 2.527
Scale 0.462
stdev 0.434
Z_min/Location 1.435/-22.2°Lat 130.967°Lon
Z_max/Location 3.573/ -22.8333°Lat 131.667°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
Ngalia Basin location map
Statistics - Lithospheric temperature gradient
Median 6.198
Mean 6.201
Scale 0.084
stdev 0.087
Z_min/Location 5.989/-22.2°Lat 130.967°Lon
Z_max/Location 6.423/ -22.7°Lat 133.267°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
Ngalia Basin location map
Statistics - Isostatic correction
Median 1.034
Mean 1.029
Scale 0.175
stdev 0.166
Z_min/Location 0.602/-22.2°Lat 130.967°Lon
Z_max/Location 1.419/-22.8333°Lat 131.667°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)
Ngalia Basin location map
Statistics - TTS (sediment)
Median 1.225
Mean 1.039
Scale 0.380
stdev 0.485
Z_min/Location -0.005/-22.8667°Lat 130.0°Lon
Z_max/Location 1.585/-22.4°Lat 132.467°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)
Ngalia Basin location map
Statistics - Beta (Sediment)
Median 1.186
Mean 1.159
Scale 0.070
stdev 0.078
Z_min/Location 0.999/-22.8667°Lat 130.0°Lon
Z_max/Location 1.254/-22.4°Lat 132.467°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.
Ngalia Basin location map
Statistics - Crustal vs lithosph. extn.
Median 0.021
Mean -0.005
Scale 0.036
stdev 0.063
Z_min/Location -0.200/-22.7°Lat 133.267°Lon
Z_max/Location 0.066/-22.2°Lat 130.967°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
Ngalia Basin location map
Statistics - Anomalous TTS
Median 1.234
Mean 1.151
Scale 0.875
stdev 0.842
Z_min/Location -0.483/-22.8667°Lat 129.6°Lon
Z_max/Location 2.764/-22.7°Lat 133.267°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
Ngalia Basin location map
Statistics - Predicted elevation
Median 929.691
Mean 968.150
Scale 157.972
stdev 161.073
Z_min/Location 759.081/-22.2333°Lat 130.9°Lon
Z_max/Location 1374.320/-22.7°Lat 133.267°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)
Ngalia Basin location map
Statistics - Beta (Crust)
Median 1.001
Mean 0.989
Scale 0.038
stdev 0.050
Z_min/Location 0.836/-22.7°Lat 133.267°Lon
Z_max/Location 1.073/-22.8333°Lat 129.567°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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TTS (crust)
Ngalia Basin location map
Statistics - TTS (crust)
Median 0.008
Mean -0.112
Scale 0.287
stdev 0.430
Z_min/Location -1.539/-22.7°Lat 133.267°Lon
Z_max/Location 0.534/-22.8333°Lat 129.567°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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Differential Beta
Ngalia Basin location map
Statistics - Differential Beta
Median 0.187
Mean 0.170
Scale 0.135
stdev 0.121
Z_min/Location -0.067/-22.8667°Lat 129.6°Lon
Z_max/Location 0.358/-22.5°Lat 132.867°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 02:36:37 CEST | © Christian Heine, School of Geosciences, Sydney University, Australia