Skip to Main Content
Book Chapter

Satellite Gravity

By
E. K. Biegert
E. K. Biegert
Shell Exploration and Technology Company Houston, Texas, USA
Search for other works by this author on:
Published:
January 01, 1998

Abstract

Gravity derived by observing orbital variations of satellites as they are perturbed by the Earth's gravity field provides valuable information about the deep internal structure of the Earth. The coverage is global, encompassing both land and oceans. These data are used in studies of plate tectonics, subduction zones, coremantle and mantle-crust anomalies, and isostatic compensation beneath mountain ranges.

Gravity derived from satellite altimetry measurements and analysis of satellite orbits is an inexpensive way to obtain good spatial coverage over large areas of ocean. It has been used to map fracture zones, seamounts, hot-spot chains, midoceanic ridges, subduction zones, and many previously undiscovered features. In offshore areas where reliable bathymetry is available, the effects of sea-bottom topography can be removed to produce gravity maps suitable for mapping continental-margin structure and detecting sedimentary basins. The long-wavelength components of satellite gravity maps can be used to tie and level smaller marine gravity surveys, providing a common mesh in which local high-resolution surveys are imbedded. In frontier areas, satellite gravity can be processed with bathymetry data to detect submarine basins.

You do not currently have access to this article.

Figures & Tables

Contents

Society of Exploration Geophysicists Geophysical References Series

Geologic Applications of Gravity and Magnetics: Case Histories

Richard I. Gibson
Richard I. Gibson
Search for other works by this author on:
Patrick S. Millegan
Patrick S. Millegan
Search for other works by this author on:
Society of Exploration Geophysicists
Volume
8
ISBN electronic:
9781560801832
Publication date:
January 01, 1998

GeoRef

References

Related

Citing Books via

A comprehensive resource of eBooks for researchers in the Earth Sciences

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal