ICONS atlas: SUN - Kompong Som Basin

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Overview

This page bundles the available data for the Kompong Som 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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Kompong Som Basin location map
Basin name Kompong Som Basin
Region code SUN
Basin ID 6190
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.

Kompong Som Basin cross section
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Dynamic topography evolution for basin centroid
Kompong Som 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
Kompong Som Basin location map
Statistics - Mantle Lid thickness
Median 84.181
Mean 84.286
Scale 2.953
stdev 2.573
Z_min/Location 79.228/11.7667°Lat 103.033°Lon
Z_max/Location 89.803/ 11.0667°Lat 104.1°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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Depth of 550 deg isotherm
Kompong Som Basin location map
Statistics - Depth of 550 deg isotherm
Median -36.023
Mean -36.037
Scale 0.569
stdev 0.491
Z_min/Location -37.103/11.0667°Lat 104.1°Lon
Z_max/Location -35.025/ 11.1333°Lat 102.867°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
Kompong Som Basin location map
Statistics - Mobil isopachs
Median 1.535
Mean 1.537
Scale 0.677
stdev 0.458
Z_min/Location 0.751/11.4333°Lat 102.933°Lon
Z_max/Location 2.273/ 9.53333°Lat 103.533°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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Plain crustal thickness
Kompong Som Basin location map
Statistics - Plain crustal thickness
Median 28.182
Mean 28.389
Scale 0.415
stdev 0.589
Z_min/Location 27.752/9.6°Lat 103.767°Lon
Z_max/Location 30.834/ 12.2°Lat 103.7°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
Kompong Som Basin location map
Statistics - Base middle crust
Median -21.539
Mean -21.564
Scale 0.596
stdev 0.447
Z_min/Location -22.392/9.46667°Lat 103.533°Lon
Z_max/Location -20.844/ 11.5°Lat 103.533°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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Base lower crust
Kompong Som Basin location map
Statistics - Base lower crust
Median -30.091
Mean -30.148
Scale 0.179
stdev 0.324
Z_min/Location -31.844/12.2°Lat 103.7°Lon
Z_max/Location -29.760/ 11.1333°Lat 102.867°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
Kompong Som Basin location map
Statistics - Total crustal thickness
Median 30.042
Mean 30.121
Scale 0.179
stdev 0.346
Z_min/Location 29.712/11.1°Lat 102.867°Lon
Z_max/Location 31.899/ 12.2°Lat 103.7°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
Kompong Som Basin location map
Statistics - Base upper crust
Median -11.425
Mean -11.454
Scale 0.714
stdev 0.544
Z_min/Location -12.540/9.46667°Lat 103.533°Lon
Z_max/Location -10.578/ 11.6667°Lat 103.7°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
Kompong Som Basin location map
Statistics - Thermal lithospheric thickness
Median 114.295
Mean 114.407
Scale 3.185
stdev 2.708
Z_min/Location 108.986/11.3333°Lat 102.9°Lon
Z_max/Location 120.387/ 11.0667°Lat 104.1°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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Heatflow
Kompong Som Basin location map
Statistics - Heatflow
Median 97.368
Mean 97.624
Scale 2.982
stdev 2.640
Z_min/Location 91.591/12.2°Lat 103.7°Lon
Z_max/Location 102.573/ 9.83333°Lat 104.033°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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Topography (ETOPO2)
Kompong Som Basin location map
Statistics - Topography (ETOPO2)
Median -2.000
Mean 121.482
Scale 38.548
stdev 258.754
Z_min/Location -120.000/10.5333°Lat 104.033°Lon
Z_max/Location 1227.000/ 11.9°Lat 103.667°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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Base hard sediments
Kompong Som Basin location map
Statistics - Base hard sediments
Median -1.775
Mean -1.759
Scale 0.393
stdev 0.342
Z_min/Location -2.511/9.46667°Lat 103.533°Lon
Z_max/Location -0.995/ 12.1333°Lat 103.767°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
Kompong Som Basin location map
Statistics - Temperature at 50km depth
Median 774.181
Mean 773.611
Scale 14.302
stdev 12.212
Z_min/Location 746.372/11.0667°Lat 104.1°Lon
Z_max/Location 798.014/ 11.3333°Lat 102.9°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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Laske sediment thickness
Kompong Som Basin location map
Statistics - Laske sediment thickness
Median 2.306
Mean 2.188
Scale 0.519
stdev 0.519
Z_min/Location 0.889/12.2333°Lat 103.367°Lon
Z_max/Location 2.980/ 9.93333°Lat 103.167°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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Lithospheric temperature gradient
Kompong Som Basin location map
Statistics - Lithospheric temperature gradient
Median 8.267
Mean 8.274
Scale 0.170
stdev 0.146
Z_min/Location 7.906/11.9667°Lat 103.133°Lon
Z_max/Location 8.561/ 9.66667°Lat 103.233°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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Computations

Isostatic correction
Kompong Som Basin location map
Statistics - Isostatic correction
Median 0.946
Mean 0.897
Scale 0.200
stdev 0.203
Z_min/Location 0.378/12.2333°Lat 103.367°Lon
Z_max/Location 1.202/9.93333°Lat 103.167°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)
Kompong Som Basin location map
Statistics - TTS (sediment)
Median 0.885
Mean 0.862
Scale 0.224
stdev 0.215
Z_min/Location 0.413/11.4°Lat 103.933°Lon
Z_max/Location 1.471/9.5°Lat 103.6°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)
Kompong Som Basin location map
Statistics - Beta (Sediment)
Median 1.128
Mean 1.125
Scale 0.036
stdev 0.035
Z_min/Location 1.056/11.4°Lat 103.933°Lon
Z_max/Location 1.232/9.5°Lat 103.6°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.
Kompong Som Basin location map
Statistics - Crustal vs lithosph. extn.
Median -0.011
Mean -0.012
Scale 0.024
stdev 0.023
Z_min/Location -0.072/12.2333°Lat 103.367°Lon
Z_max/Location 0.032/9.9°Lat 104.067°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
Kompong Som Basin location map
Statistics - Anomalous TTS
Median 0.855
Mean 0.872
Scale 0.148
stdev 0.148
Z_min/Location 0.636/11.0667°Lat 103.8°Lon
Z_max/Location 1.322/12.2333°Lat 103.367°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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Predicted elevation
Kompong Som Basin location map
Statistics - Predicted elevation
Median 747.947
Mean 748.845
Scale 50.517
stdev 47.689
Z_min/Location 665.869/10.3333°Lat 104.133°Lon
Z_max/Location 891.882/12.2333°Lat 103.367°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)
Kompong Som Basin location map
Statistics - Beta (Crust)
Median 1.006
Mean 0.999
Scale 0.015
stdev 0.020
Z_min/Location 0.920/12.2°Lat 103.7°Lon
Z_max/Location 1.022/9.6°Lat 103.767°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)
Kompong Som Basin location map
Statistics - TTS (crust)
Median 0.047
Mean -0.010
Scale 0.115
stdev 0.162
Z_min/Location -0.684/12.2°Lat 103.7°Lon
Z_max/Location 0.166/9.6°Lat 103.767°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
Kompong Som Basin location map
Statistics - Differential Beta
Median 0.125
Mean 0.126
Scale 0.025
stdev 0.024
Z_min/Location 0.086/11.1333°Lat 103.833°Lon
Z_max/Location 0.210/9.46667°Lat 103.533°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