Abstract
A constant value of the Moho density contrast is often assumed in methods for a gravimetric determination of the Moho geometry. This assumption might be sufficient in some regional studies. In global studies, however, this assumption is not reasonable due to the fact that the Moho density contrast vary significantly. Large errors then can be expected in the Moho geometry determined globally from gravity data. In this study we utilize a generalized compensation scheme based on variable depth and density of compensation. The Moho depths are determined based on assuming the variable Moho density contrast. We demonstrate that this assumption (instead of a uniform model) significantly improves the agreement between the global gravimetric and seismic Moho models; the RMS fit of the gravimetric result with the CRUST1.0 seismic Moho model is 4.5 km (for a uniform model) and 3.0 km (for a variable model).
Original language | English |
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Title of host publication | Proceedings of the 16th International Association for Mathematical Geosciences - Geostatistical and Geospatial Approaches for the Characterization of Natural Resources in the Environment |
Subtitle of host publication | Challenges, Processes and Strategies, IAMG 2014 |
Publisher | Capital Publishing Company |
Pages | 351-353 |
Number of pages | 3 |
ISBN (Electronic) | 9789381891254 |
Publication status | Published - 1 Jan 2014 |
Externally published | Yes |
Event | 16th International Association for Mathematical Geosciences - Geostatistical and Geospatial Approaches for the Characterization of Natural Resources in the Environment: Challenges, Processes and Strategies, IAMG 2014 - Jawaharlal Nehru University, New Delhi, India Duration: 17 Oct 2014 → 20 Oct 2014 |
Conference
Conference | 16th International Association for Mathematical Geosciences - Geostatistical and Geospatial Approaches for the Characterization of Natural Resources in the Environment: Challenges, Processes and Strategies, IAMG 2014 |
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Country/Territory | India |
City | New Delhi |
Period | 17/10/14 → 20/10/14 |
Keywords
- Crust
- Gravity
- Isostasy
- Mantle
- Moho
ASJC Scopus subject areas
- Mathematics (miscellaneous)
- Earth and Planetary Sciences(all)