ICONS atlas: SUN - West Natuna Basin

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Overview

This page bundles the available data for the West Natuna 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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West Natuna Basin location map
Basin name West Natuna Basin
Region code SUN
Basin ID 6270
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.

West Natuna Basin cross section
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Dynamic topography evolution for basin centroid
West Natuna 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
West Natuna Basin location map
Statistics - Mantle Lid thickness
Median 66.902
Mean 66.895
Scale 0.975
stdev 0.796
Z_min/Location 65.362/3.73333°Lat 103.533°Lon
Z_max/Location 68.902/ 4.6°Lat 104.6°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
West Natuna Basin location map
Statistics - Depth of 550 deg isotherm
Median -32.709
Mean -32.737
Scale 0.268
stdev 0.253
Z_min/Location -33.316/4.6°Lat 104.6°Lon
Z_max/Location -32.226/ 3.1°Lat 103.6°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
West Natuna Basin location map
Statistics - Mobil isopachs
Median 2.924
Mean 2.910
Scale 1.460
stdev 1.071
Z_min/Location 0.830/3.7°Lat 107.1°Lon
Z_max/Location 4.914/ 4.96667°Lat 107.2°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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Plain crustal thickness
West Natuna Basin location map
Statistics - Plain crustal thickness
Median 28.000
Mean 28.519
Scale 0.222
stdev 0.785
Z_min/Location 27.844/4.86667°Lat 106.633°Lon
Z_max/Location 30.292/ 4.8°Lat 103.833°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
West Natuna Basin location map
Statistics - Base middle crust
Median -21.090
Mean -21.155
Scale 0.190
stdev 0.262
Z_min/Location -22.080/6.03333°Lat 106.0°Lon
Z_max/Location -20.696/ 4.83333°Lat 104.0°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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Base lower crust
West Natuna Basin location map
Statistics - Base lower crust
Median -29.432
Mean -29.680
Scale 0.593
stdev 0.664
Z_min/Location -30.966/4.46667°Lat 103.9°Lon
Z_max/Location -28.883/ 3.7°Lat 106.567°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
West Natuna Basin location map
Statistics - Total crustal thickness
Median 29.349
Mean 29.623
Scale 0.583
stdev 0.711
Z_min/Location 28.824/3.7°Lat 106.567°Lon
Z_max/Location 31.164/ 4.7°Lat 103.867°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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Base upper crust
West Natuna Basin location map
Statistics - Base upper crust
Median -11.086
Mean -11.147
Scale 0.184
stdev 0.259
Z_min/Location -12.080/6.03333°Lat 106.0°Lon
Z_max/Location -10.671/ 4.83333°Lat 104.0°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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Thermal lithospheric thickness
West Natuna Basin location map
Statistics - Thermal lithospheric thickness
Median 97.414
Mean 97.462
Scale 0.853
stdev 0.840
Z_min/Location 95.760/3.1°Lat 103.6°Lon
Z_max/Location 99.641/ 4.6°Lat 104.6°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
West Natuna Basin location map
Statistics - Heatflow
Median 90.059
Mean 91.084
Scale 4.177
stdev 3.727
Z_min/Location 84.752/3.06667°Lat 103.8°Lon
Z_max/Location 99.290/ 6.03333°Lat 106.0°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)
West Natuna Basin location map
Statistics - Topography (ETOPO2)
Median -69.000
Mean -68.370
Scale 16.309
stdev 18.291
Z_min/Location -126.000/4.96667°Lat 107.733°Lon
Z_max/Location -8.000/ 3.6°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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Base hard sediments
West Natuna Basin location map
Statistics - Base hard sediments
Median -1.091
Mean -1.151
Scale 0.188
stdev 0.258
Z_min/Location -2.080/6.03333°Lat 106.0°Lon
Z_max/Location -0.671/ 4.83333°Lat 104.0°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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Temperature at 50km depth
West Natuna Basin location map
Statistics - Temperature at 50km depth
Median 850.971
Mean 850.725
Scale 3.918
stdev 3.857
Z_min/Location 840.772/4.6°Lat 104.6°Lon
Z_max/Location 858.529/ 3.1°Lat 103.6°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
West Natuna Basin location map
Statistics - Laske sediment thickness
Median 1.669
Mean 1.659
Scale 0.919
stdev 0.764
Z_min/Location 0.072/3.1°Lat 103.6°Lon
Z_max/Location 3.001/ 5.16667°Lat 106.567°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
West Natuna Basin location map
Statistics - Lithospheric temperature gradient
Median 9.551
Mean 9.545
Scale 0.070
stdev 0.067
Z_min/Location 9.383/4.6°Lat 104.6°Lon
Z_max/Location 9.681/ 3.1°Lat 103.6°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
West Natuna Basin location map
Statistics - Isostatic correction
Median 0.696
Mean 0.686
Scale 0.366
stdev 0.306
Z_min/Location 0.031/3.1°Lat 103.6°Lon
Z_max/Location 1.209/5.16667°Lat 106.567°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)
West Natuna Basin location map
Statistics - TTS (sediment)
Median 0.456
Mean 0.466
Scale 0.276
stdev 0.287
Z_min/Location -0.142/4.23333°Lat 104.967°Lon
Z_max/Location 1.405/3.06667°Lat 103.633°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)
West Natuna Basin location map
Statistics - Beta (Sediment)
Median 1.062
Mean 1.065
Scale 0.040
stdev 0.042
Z_min/Location 0.982/4.23333°Lat 104.967°Lon
Z_max/Location 1.219/3.06667°Lat 103.633°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.
West Natuna Basin location map
Statistics - Crustal vs lithosph. extn.
Median -0.051
Mean -0.048
Scale 0.015
stdev 0.015
Z_min/Location -0.069/3.93333°Lat 103.6°Lon
Z_max/Location -0.005/3.13333°Lat 105.167°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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Anomalous TTS
West Natuna Basin location map
Statistics - Anomalous TTS
Median 0.526
Mean 0.611
Scale 0.303
stdev 0.365
Z_min/Location 0.098/5.0°Lat 107.033°Lon
Z_max/Location 1.714/3.1°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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Predicted elevation
West Natuna Basin location map
Statistics - Predicted elevation
Median 1073.420
Mean 1062.010
Scale 47.402
stdev 49.937
Z_min/Location 923.261/3.13333°Lat 105.167°Lon
Z_max/Location 1121.910/4.33333°Lat 103.667°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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Beta (Crust)
West Natuna Basin location map
Statistics - Beta (Crust)
Median 1.000
Mean 0.982
Scale 0.008
stdev 0.026
Z_min/Location 0.924/4.8°Lat 103.833°Lon
Z_max/Location 1.006/4.86667°Lat 106.633°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)
West Natuna Basin location map
Statistics - TTS (crust)
Median -0.001
Mean -0.146
Scale 0.062
stdev 0.219
Z_min/Location -0.641/4.8°Lat 103.833°Lon
Z_max/Location 0.043/4.86667°Lat 106.633°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
West Natuna Basin location map
Statistics - Differential Beta
Median 0.071
Mean 0.083
Scale 0.043
stdev 0.051
Z_min/Location 0.013/5.0°Lat 107.033°Lon
Z_max/Location 0.257/3.1°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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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