ICONS atlas: SUN - Khorat Plateau Basin

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Overview

This page bundles the available data for the Khorat Plateau Basin in the Sundaland Region. 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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Khorat Plateau Basin location map

Basin name	Khorat Plateau Basin
Region code	SUN
Basin ID	6230
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.

Khorat Plateau Basin cross section

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Dynamic topography evolution for basin centroid

Khorat Plateau 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

Khorat Plateau Basin location map

Statistics - Mantle Lid thickness
Median	80.078
Mean	77.636
Scale	6.576
stdev	7.236
Z_min/Location	57.096/15.9°Lat 101.4°Lon
Z_max/Location	85.048/ 15.7667°Lat 105.0°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

Khorat Plateau Basin location map

Statistics - Depth of 550 deg isotherm
Median	-37.894
Mean	-37.281
Scale	1.514
stdev	1.688
Z_min/Location	-39.000/17.0°Lat 104.0°Lon
Z_max/Location	-32.811/ 14.3667°Lat 101.367°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

Khorat Plateau Basin location map

Statistics - Mobil isopachs
Median	1.176
Mean	1.712
Scale	1.613
stdev	1.719
Z_min/Location	-0.435/16.5°Lat 101.633°Lon
Z_max/Location	5.881/ 15.5667°Lat 103.433°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

Khorat Plateau Basin location map

Statistics - Plain crustal thickness
Median	39.844
Mean	39.784
Scale	1.336
stdev	2.135
Z_min/Location	30.901/14.0667°Lat 101.8°Lon
Z_max/Location	42.921/ 18.6°Lat 103.367°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

Khorat Plateau Basin location map

Statistics - Base middle crust
Median	-32.270
Mean	-32.337
Scale	1.504
stdev	2.705
Z_min/Location	-36.873/18.1°Lat 103.867°Lon
Z_max/Location	-21.697/ 14.1°Lat 101.733°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

Khorat Plateau Basin location map

Statistics - Base lower crust
Median	-41.233
Mean	-41.365
Scale	1.398
stdev	2.486
Z_min/Location	-45.844/18.0667°Lat 103.9°Lon
Z_max/Location	-31.804/ 14.0667°Lat 101.8°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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Total crustal thickness

Khorat Plateau Basin location map

Statistics - Total crustal thickness
Median	41.380
Mean	41.536
Scale	1.436
stdev	2.535
Z_min/Location	31.840/14.0667°Lat 101.8°Lon
Z_max/Location	46.055/ 18.1°Lat 103.9°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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Base upper crust

Khorat Plateau Basin location map

Statistics - Base upper crust
Median	-17.114
Mean	-17.210
Scale	0.983
stdev	1.717
Z_min/Location	-20.333/18.0667°Lat 103.9°Lon
Z_max/Location	-10.744/ 14.1°Lat 101.733°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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Thermal lithospheric thickness

Khorat Plateau Basin location map

Statistics - Thermal lithospheric thickness
Median	122.804
Mean	119.172
Scale	4.640
stdev	7.749
Z_min/Location	98.321/14.3667°Lat 101.367°Lon
Z_max/Location	126.001/ 15.0333°Lat 105.233°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

Khorat Plateau Basin location map

Statistics - Heatflow
Median	74.499
Mean	74.739
Scale	4.974
stdev	3.912
Z_min/Location	68.590/17.7667°Lat 103.833°Lon
Z_max/Location	86.312/ 13.9333°Lat 102.2°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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Topography (ETOPO2)

Khorat Plateau Basin location map

Statistics - Topography (ETOPO2)
Median	180.000
Mean	238.231
Scale	53.374
stdev	176.604
Z_min/Location	27.000/14.1667°Lat 101.7°Lon
Z_max/Location	1905.000/ 18.7°Lat 102.933°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

Khorat Plateau Basin location map

Statistics - Base hard sediments
Median	-1.445
Mean	-1.581
Scale	0.700
stdev	0.706
Z_min/Location	-3.369/17.7667°Lat 104.067°Lon
Z_max/Location	-0.077/ 17.0°Lat 101.367°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

Khorat Plateau Basin location map

Statistics - Temperature at 50km depth
Median	736.194
Mean	752.780
Scale	19.303
stdev	34.809
Z_min/Location	722.990/15.0333°Lat 105.367°Lon
Z_max/Location	847.408/ 14.3667°Lat 101.367°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

Khorat Plateau Basin location map

Statistics - Laske sediment thickness
Median	2.046
Mean	2.274
Scale	2.014
stdev	1.630
Z_min/Location	0.036/13.9333°Lat 102.533°Lon
Z_max/Location	7.093/ 16.0667°Lat 104.933°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

Khorat Plateau Basin location map

Statistics - Lithospheric temperature gradient
Median	7.896
Mean	8.022
Scale	0.426
stdev	0.393
Z_min/Location	7.598/17.0°Lat 104.0°Lon
Z_max/Location	9.218/ 14.3667°Lat 101.367°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

Khorat Plateau Basin location map

Statistics - Isostatic correction
Median	0.845
Mean	0.906
Scale	0.794
stdev	0.616
Z_min/Location	0.016/13.9333°Lat 102.533°Lon
Z_max/Location	2.557/16.0667°Lat 104.933°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)

Khorat Plateau Basin location map

Statistics - TTS (sediment)
Median	0.743
Mean	0.674
Scale	0.495
stdev	0.485
Z_min/Location	-0.545/16.0°Lat 104.933°Lon
Z_max/Location	1.672/18.0°Lat 104.367°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)

Khorat Plateau Basin location map

Statistics - Beta (Sediment)
Median	1.105
Mean	1.099
Scale	0.076
stdev	0.075
Z_min/Location	0.935/16.0°Lat 104.933°Lon
Z_max/Location	1.272/18.0°Lat 104.367°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.

Khorat Plateau Basin location map

Statistics - Crustal vs lithosph. extn.
Median	0.171
Mean	0.143
Scale	0.054
stdev	0.074
Z_min/Location	-0.099/17.0°Lat 101.367°Lon
Z_max/Location	0.310/13.9333°Lat 102.2°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

Khorat Plateau Basin location map

Statistics - Anomalous TTS
Median	0.343
Mean	0.340
Scale	0.716
stdev	0.692
Z_min/Location	-1.374/14.3°Lat 101.4°Lon
Z_max/Location	1.823/18.1°Lat 104.267°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

Khorat Plateau Basin location map

Statistics - Predicted elevation
Median	1533.280
Mean	1586.960
Scale	106.561
stdev	153.064
Z_min/Location	1133.960/13.9333°Lat 102.2°Lon
Z_max/Location	1967.320/17.0°Lat 101.367°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)

Khorat Plateau Basin location map

Statistics - Beta (Crust)
Median	1.043
Mean	1.048
Scale	0.035
stdev	0.062
Z_min/Location	0.968/18.6°Lat 103.367°Lon
Z_max/Location	1.345/14.0667°Lat 101.8°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)

Khorat Plateau Basin location map

Statistics - TTS (crust)
Median	0.323
Mean	0.334
Scale	0.251
stdev	0.402
Z_min/Location	-0.256/18.6°Lat 103.367°Lon
Z_max/Location	2.006/14.0667°Lat 101.8°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

Khorat Plateau Basin location map

Statistics - Differential Beta
Median	0.049
Mean	0.052
Scale	0.105
stdev	0.106
Z_min/Location	-0.246/14.2667°Lat 101.433°Lon
Z_max/Location	0.290/18.0667°Lat 104.3°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 02:36:58 CEST | © Christian Heine, School of Geosciences, Sydney University, Australia