Generalized compensation model for the gravimetric Moho recovery

Robert Tenzer, W. Chen

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

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 languageEnglish
Title of host publicationProceedings of the 16th International Association for Mathematical Geosciences - Geostatistical and Geospatial Approaches for the Characterization of Natural Resources in the Environment
Subtitle of host publicationChallenges, Processes and Strategies, IAMG 2014
PublisherCapital Publishing Company
Pages351-353
Number of pages3
ISBN (Electronic)9789381891254
Publication statusPublished - 1 Jan 2014
Externally publishedYes
Event16th 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 201420 Oct 2014

Conference

Conference16th International Association for Mathematical Geosciences - Geostatistical and Geospatial Approaches for the Characterization of Natural Resources in the Environment: Challenges, Processes and Strategies, IAMG 2014
Country/TerritoryIndia
CityNew Delhi
Period17/10/1420/10/14

Keywords

  • Crust
  • Gravity
  • Isostasy
  • Mantle
  • Moho

ASJC Scopus subject areas

  • Mathematics (miscellaneous)
  • Earth and Planetary Sciences(all)

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