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Majumdar, T. J.
- Crustal Depth Estimation Over the Indian Lithospheric Plate using Satellite Geoid and a Gravimetric–Isostatic Model
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Authors
Affiliations
1 Space Applications Centre (ISRO), Ahmedabad 380 015, IN
1 Space Applications Centre (ISRO), Ahmedabad 380 015, IN
Source
Current Science, Vol 117, No 3 (2019), Pagination: 502-506Abstract
Moho depth or simply, Moho, in general, describes the boundary between the earth’s crust and the mantle and is a very important geophysical parameter. It is also related to the earth’s crustal thickness at any point. Geoid and gravity anomalies derived from satellite altimetry are gradually gaining importance in marine geo-scientific investigations. However, satellite gravity technique is not working over land/continent. So, we need to develop technique like the VMM model which is equally working over land. In addition of generating crustal thickness, it also saves energy to generate Bouguer anomaly over land and ocean.Keywords
Crustal Depth, Geoid, Gravity Anomaly, Lithospheric Plate, Satellite Altimetry.Full Text
References
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- On satellite geoidal mapping over the Elan Bank, Antarctica
Abstract Views :195 |
PDF Views:82
Authors
Affiliations
1 Space Applications Centre (Indian Space Research Organization), Ahmedabad 380 015, IN
2 Oil India Ltd, Duliajan 786 602, IN
1 Space Applications Centre (Indian Space Research Organization), Ahmedabad 380 015, IN
2 Oil India Ltd, Duliajan 786 602, IN
Source
Current Science, Vol 122, No 8 (2022), Pagination: 974-978Abstract
Satellite geoidal data over the Elan Bank region in Antarctica could be demarcated with the surroundings and confirmed as continental lithosphere. It has been observed that the satellite geoidal map can well demarcate the continental margin region near the Indian coastal region using high-resolution geoid/gravity data. This also helps determine the nature of the lithospheric plate over the Elan Bank. A large portion of land got detached from the Indian plate during the transition processes between the continental and oceanic crust that were originally created by rifting. Satellite geoidal mapping is a comparatively new technique for crust delineation, offshore exploration and tectonics-related studies.Keywords
Continental crust, geoidal mapping, lithospheric plate, satellite data.Full Text
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