| Autor: |
Rajesh R. Nair, Suresh Ch. Kandpal, Yudhvir Singh, Deshraj Trivedi |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Tectonophysics. :193-204 |
| ISSN: |
0040-1951 |
| DOI: |
10.1016/j.tecto.2012.02.006 |
| Popis: |
We seek to determine the strain field which has accumulated in the Indian Shield due to the continental drift of Gondwanaland. We have used a method which involves the calculation of the 2D isostatic coherence response function between Bouguer gravity and topography as a function of azimuth by way of multispectrogram analysis. The average coherence is maximum consistently in the Indian Shield in a direction, which is at an angle of 45° to the major trend of suture zones within the shield, a result which is in good agreement with the strain inferred from absolute plate motion (APM) in a hot spot reference frame. This directionality of mechanical plate weakness suggests that all paleostress fields were erased due to the movement of the Indian plate during the Himalayan orogeny. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect