ICONS atlas: SUN - Tiga Puluh Arch

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Overview

This page bundles the available data for the Tiga Puluh Arch 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.

Select data to display:

Tiga Puluh Arch location map
Basin name Tiga Puluh Arch
Region code SUN
Basin ID 6450
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.

Tiga Puluh Arch cross section
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Dynamic topography evolution for basin centroid
Tiga Puluh Arch 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
Tiga Puluh Arch location map
Statistics - Mantle Lid thickness
Median 62.322
Mean 63.876
Scale 1.473
stdev 2.836
Z_min/Location 60.795/-0.7°Lat 104.0°Lon
Z_max/Location 71.363/ -1.6°Lat 101.9°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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Depth of 550 deg isotherm
Tiga Puluh Arch location map
Statistics - Depth of 550 deg isotherm
Median -32.003
Mean -32.007
Scale 0.004
stdev 0.009
Z_min/Location -32.043/0.233333°Lat 104.1°Lon
Z_max/Location -32.000/ -1.3°Lat 102.7°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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Mobil isopachs
Tiga Puluh Arch location map
Statistics - Mobil isopachs
Median 1.015
Mean 1.032
Scale 0.090
stdev 0.119
Z_min/Location 0.840/0.233333°Lat 104.1°Lon
Z_max/Location 1.581/ -1.56667°Lat 102.467°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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Plain crustal thickness
Tiga Puluh Arch location map
Statistics - Plain crustal thickness
Median 30.678
Mean 29.322
Scale 0.916
stdev 2.358
Z_min/Location 22.691/-1.6°Lat 101.9°Lon
Z_max/Location 31.620/ -0.7°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 middle crust
Tiga Puluh Arch location map
Statistics - Base middle crust
Median -22.244
Mean -21.342
Scale 1.675
stdev 2.111
Z_min/Location -23.772/-0.7°Lat 104.0°Lon
Z_max/Location -16.364/ -1.6°Lat 101.9°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 lower crust
Tiga Puluh Arch location map
Statistics - Base lower crust
Median -32.366
Mean -30.973
Scale 1.735
stdev 2.811
Z_min/Location -34.039/-0.7°Lat 104.0°Lon
Z_max/Location -23.922/ -1.6°Lat 101.9°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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Total crustal thickness
Tiga Puluh Arch location map
Statistics - Total crustal thickness
Median 32.685
Mean 31.152
Scale 1.525
stdev 2.853
Z_min/Location 23.671/-1.6°Lat 101.9°Lon
Z_max/Location 34.251/ -0.7°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 upper crust
Tiga Puluh Arch location map
Statistics - Base upper crust
Median -12.294
Mean -11.788
Scale 1.543
stdev 1.481
Z_min/Location -13.652/-0.7°Lat 104.0°Lon
Z_max/Location -8.797/ -1.6°Lat 101.9°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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Thermal lithospheric thickness
Tiga Puluh Arch location map
Statistics - Thermal lithospheric thickness
Median 95.011
Mean 95.027
Scale 0.016
stdev 0.036
Z_min/Location 94.999/-1.26667°Lat 102.7°Lon
Z_max/Location 95.161/ 0.233333°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
Tiga Puluh Arch location map
Statistics - Heatflow
Median 84.144
Mean 83.805
Scale 0.980
stdev 1.107
Z_min/Location 81.272/0.333333°Lat 104.0°Lon
Z_max/Location 85.522/ -1.03333°Lat 103.333°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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Topography (ETOPO2)
Tiga Puluh Arch location map
Statistics - Topography (ETOPO2)
Median 7.000
Mean 50.330
Scale 42.995
stdev 70.459
Z_min/Location -64.000/-0.366667°Lat 103.7°Lon
Z_max/Location 537.000/ -0.966667°Lat 102.333°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 hard sediments
Tiga Puluh Arch location map
Statistics - Base hard sediments
Median -1.652
Mean -1.652
Scale 0.795
stdev 0.544
Z_min/Location -2.468/-0.133333°Lat 104.033°Lon
Z_max/Location -0.831/ -0.666667°Lat 102.067°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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Temperature at 50km depth
Tiga Puluh Arch location map
Statistics - Temperature at 50km depth
Median 861.958
Mean 861.878
Scale 0.063
stdev 0.166
Z_min/Location 861.273/0.233333°Lat 104.1°Lon
Z_max/Location 862.003/ -1.23333°Lat 102.7°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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Laske sediment thickness
Tiga Puluh Arch location map
Statistics - Laske sediment thickness
Median 1.296
Mean 1.359
Scale 0.406
stdev 0.418
Z_min/Location 0.280/-1.83333°Lat 102.167°Lon
Z_max/Location 2.688/ -0.766667°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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Lithospheric temperature gradient
Tiga Puluh Arch location map
Statistics - Lithospheric temperature gradient
Median 9.741
Mean 9.740
Scale 0.001
stdev 0.003
Z_min/Location 9.730/0.233333°Lat 104.1°Lon
Z_max/Location 9.742/ -1.23333°Lat 102.7°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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Computations

Isostatic correction
Tiga Puluh Arch location map
Statistics - Isostatic correction
Median 0.545
Mean 0.569
Scale 0.165
stdev 0.169
Z_min/Location 0.121/-1.83333°Lat 102.167°Lon
Z_max/Location 1.092/-0.766667°Lat 103.867°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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TTS (sediment)
Tiga Puluh Arch location map
Statistics - TTS (sediment)
Median 1.132
Mean 1.083
Scale 0.506
stdev 0.443
Z_min/Location 0.284/-0.666667°Lat 102.067°Lon
Z_max/Location 1.962/0.366667°Lat 103.967°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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Beta (Sediment)
Tiga Puluh Arch location map
Statistics - Beta (Sediment)
Median 1.169
Mean 1.166
Scale 0.087
stdev 0.077
Z_min/Location 1.038/-0.666667°Lat 102.067°Lon
Z_max/Location 1.335/0.366667°Lat 103.967°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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Crustal vs lithosph. extn.
Tiga Puluh Arch location map
Statistics - Crustal vs lithosph. extn.
Median -0.040
Mean 0.012
Scale 0.028
stdev 0.089
Z_min/Location -0.068/-0.766667°Lat 103.867°Lon
Z_max/Location 0.298/-1.6°Lat 101.9°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
Tiga Puluh Arch location map
Statistics - Anomalous TTS
Median 1.453
Mean 1.051
Scale 0.929
stdev 0.988
Z_min/Location -0.820/-1.6°Lat 101.9°Lon
Z_max/Location 2.277/0.233333°Lat 104.033°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
Tiga Puluh Arch location map
Statistics - Predicted elevation
Median 1308.310
Mean 1138.740
Scale 139.763
stdev 305.988
Z_min/Location 265.805/-1.6°Lat 101.9°Lon
Z_max/Location 1449.230/-0.7°Lat 104.0°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)
Tiga Puluh Arch location map
Statistics - Beta (Crust)
Median 0.960
Mean 1.011
Scale 0.028
stdev 0.089
Z_min/Location 0.931/-0.7°Lat 104.0°Lon
Z_max/Location 1.298/-1.6°Lat 101.9°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)
Tiga Puluh Arch location map
Statistics - TTS (crust)
Median -0.327
Mean 0.033
Scale 0.243
stdev 0.626
Z_min/Location -0.578/-0.7°Lat 104.0°Lon
Z_max/Location 1.794/-1.6°Lat 101.9°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
Tiga Puluh Arch location map
Statistics - Differential Beta
Median 0.208
Mean 0.155
Scale 0.156
stdev 0.151
Z_min/Location -0.155/-1.6°Lat 101.9°Lon
Z_max/Location 0.373/0.333333°Lat 104.0°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