ICONS atlas: SUN - Gulf of Thailand Basin

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Overview

This page bundles the available data for the Gulf of Thailand 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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Gulf of Thailand Basin location map
Basin name Gulf of Thailand Basin
Region code SUN
Basin ID 6760
Plate location/code back-arc/BA
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.

Gulf of Thailand Basin cross section
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Dynamic topography evolution for basin centroid
Gulf of Thailand 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
Gulf of Thailand Basin location map
Statistics - Mantle Lid thickness
Median 67.767
Mean 68.705
Scale 2.854
stdev 3.829
Z_min/Location 64.157/13.2667°Lat 99.8333°Lon
Z_max/Location 81.260/ 9.5°Lat 103.3°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
Gulf of Thailand Basin location map
Statistics - Depth of 550 deg isotherm
Median -32.789
Mean -32.995
Scale 0.607
stdev 0.783
Z_min/Location -35.574/9.23333°Lat 103.367°Lon
Z_max/Location -32.000/ 13.0°Lat 100.0°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
Gulf of Thailand Basin location map
Statistics - Mobil isopachs
Median 1.812
Mean 2.031
Scale 1.086
stdev 1.172
Z_min/Location 0.542/11.4667°Lat 99.8333°Lon
Z_max/Location 6.675/ 9.5°Lat 101.433°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
Gulf of Thailand Basin location map
Statistics - Plain crustal thickness
Median 29.089
Mean 28.973
Scale 0.983
stdev 0.772
Z_min/Location 27.647/10.9667°Lat 102.3°Lon
Z_max/Location 30.354/ 13.4333°Lat 100.267°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 middle crust
Gulf of Thailand Basin location map
Statistics - Base middle crust
Median -21.202
Mean -21.299
Scale 0.752
stdev 0.619
Z_min/Location -22.821/8.3°Lat 103.567°Lon
Z_max/Location -20.020/ 13.3667°Lat 100.733°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
Gulf of Thailand Basin location map
Statistics - Base lower crust
Median -30.329
Mean -30.315
Scale 0.480
stdev 0.458
Z_min/Location -31.136/10.7333°Lat 99.5333°Lon
Z_max/Location -28.782/ 7.93333°Lat 100.467°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
Gulf of Thailand Basin location map
Statistics - Total crustal thickness
Median 30.363
Mean 30.351
Scale 0.546
stdev 0.481
Z_min/Location 28.825/7.4°Lat 100.567°Lon
Z_max/Location 31.206/ 10.7333°Lat 99.5333°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
Gulf of Thailand Basin location map
Statistics - Base upper crust
Median -11.198
Mean -11.310
Scale 0.804
stdev 0.676
Z_min/Location -13.256/8.23333°Lat 103.567°Lon
Z_max/Location -9.672/ 13.4333°Lat 100.533°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
Gulf of Thailand Basin location map
Statistics - Thermal lithospheric thickness
Median 97.888
Mean 99.033
Scale 2.172
stdev 3.596
Z_min/Location 95.000/13.0°Lat 100.0°Lon
Z_max/Location 111.482/ 9.5°Lat 103.3°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
Gulf of Thailand Basin location map
Statistics - Heatflow
Median 95.910
Mean 96.473
Scale 2.792
stdev 3.418
Z_min/Location 86.165/13.4333°Lat 100.267°Lon
Z_max/Location 106.707/ 11.8667°Lat 100.0°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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Topography (ETOPO2)
Gulf of Thailand Basin location map
Statistics - Topography (ETOPO2)
Median -52.000
Mean -51.747
Scale 22.239
stdev 22.684
Z_min/Location -153.000/12.9°Lat 100.767°Lon
Z_max/Location 27.000/ 13.2°Lat 99.9667°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 hard sediments
Gulf of Thailand Basin location map
Statistics - Base hard sediments
Median -1.178
Mean -1.341
Scale 0.741
stdev 0.631
Z_min/Location -3.254/8.2°Lat 103.567°Lon
Z_max/Location -0.360/ 13.4333°Lat 100.333°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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Temperature at 50km depth
Gulf of Thailand Basin location map
Statistics - Temperature at 50km depth
Median 848.574
Mean 843.412
Scale 10.085
stdev 16.414
Z_min/Location 786.898/9.5°Lat 103.3°Lon
Z_max/Location 862.000/ 13.0°Lat 100.0°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
Gulf of Thailand Basin location map
Statistics - Laske sediment thickness
Median 1.322
Mean 1.581
Scale 0.948
stdev 0.958
Z_min/Location 0.010/13.2667°Lat 99.8333°Lon
Z_max/Location 4.868/ 8.13333°Lat 103.567°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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Lithospheric temperature gradient
Gulf of Thailand Basin location map
Statistics - Lithospheric temperature gradient
Median 9.456
Mean 9.358
Scale 0.201
stdev 0.297
Z_min/Location 8.546/10.4°Lat 103.0°Lon
Z_max/Location 9.742/ 13.0°Lat 100.0°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
Gulf of Thailand Basin location map
Statistics - Isostatic correction
Median 0.556
Mean 0.651
Scale 0.390
stdev 0.380
Z_min/Location 0.004/13.2667°Lat 99.8333°Lon
Z_max/Location 1.868/8.13333°Lat 103.567°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 (sediment)
Gulf of Thailand Basin location map
Statistics - TTS (sediment)
Median 0.643
Mean 0.690
Scale 0.397
stdev 0.351
Z_min/Location 0.062/8.0°Lat 100.8°Lon
Z_max/Location 1.794/8.8°Lat 103.5°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 (Sediment)
Gulf of Thailand Basin location map
Statistics - Beta (Sediment)
Median 1.090
Mean 1.100
Scale 0.060
stdev 0.055
Z_min/Location 1.008/8.0°Lat 100.8°Lon
Z_max/Location 1.298/8.8°Lat 103.5°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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Crustal vs lithosph. extn.
Gulf of Thailand Basin location map
Statistics - Crustal vs lithosph. extn.
Median 0.026
Mean 0.038
Scale 0.051
stdev 0.059
Z_min/Location -0.043/13.4333°Lat 100.267°Lon
Z_max/Location 0.193/9.5°Lat 103.3°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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Anomalous TTS
Gulf of Thailand Basin location map
Statistics - Anomalous TTS
Median 0.585
Mean 0.548
Scale 0.245
stdev 0.272
Z_min/Location -0.195/7.93333°Lat 100.467°Lon
Z_max/Location 1.328/8.8°Lat 103.5°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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Predicted elevation
Gulf of Thailand Basin location map
Statistics - Predicted elevation
Median 1017.420
Mean 1014.240
Scale 112.360
stdev 92.086
Z_min/Location 788.694/10.4°Lat 103.0°Lon
Z_max/Location 1150.380/10.6667°Lat 99.5°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)
Gulf of Thailand Basin location map
Statistics - Beta (Crust)
Median 1.015
Mean 1.019
Scale 0.034
stdev 0.027
Z_min/Location 0.972/13.4333°Lat 100.267°Lon
Z_max/Location 1.067/10.9667°Lat 102.3°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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TTS (crust)
Gulf of Thailand Basin location map
Statistics - TTS (crust)
Median 0.112
Mean 0.143
Scale 0.260
stdev 0.205
Z_min/Location -0.223/13.4333°Lat 100.267°Lon
Z_max/Location 0.494/10.9667°Lat 102.3°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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Differential Beta
Gulf of Thailand Basin location map
Statistics - Differential Beta
Median 0.083
Mean 0.080
Scale 0.040
stdev 0.043
Z_min/Location -0.026/7.93333°Lat 100.467°Lon
Z_max/Location 0.234/8.8°Lat 103.5°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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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