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Improvements in source resolution that can be expected from inversion of magnetic field tensor data

Clive Foss
Improvements in source resolution that can be expected from inversion of magnetic field tensor data (in Magnetic gradiometry, Terry McConnell (prefacer) and Bill Dragoset (prefacer))
Leading Edge (Tulsa, OK) (January 2006) 25 (1): 81-84

Abstract

Airborne magnetic tensor gradiometers using SQUID technology are currently being trialed, posing the problem of how to best recover information from this new type of data. This paper investigates the possible advantages of magnetic field tensor data for interpretation of an area of shallow volcanics in southern Victoria, Australia. Source models for TMI anomalies over volcanic pipe or fissure sources have been used to generate synthetic magnetic field tensor data. Inversion of the TMI and tensor data indicates that tensor data can substantially improve resolution in mapping these shallow volcanics. Inversion of the TMI data cannot differentiate between dipping bodies with induced magnetization, and vertical bodies with remanent magnetization. The simulated magnetic tensor data accentuates differences between these models and confirms that magnetic tensor data would provide greater sensitivity in resolving the magnetization direction, and thereby the dip of the sources.


ISSN: 1070-485X
EISSN: 1938-3789
Serial Title: Leading Edge (Tulsa, OK)
Serial Volume: 25
Serial Issue: 1
Title: Improvements in source resolution that can be expected from inversion of magnetic field tensor data
Title: Magnetic gradiometry
Author(s): Foss, Clive
Author(s): McConnell, Terryprefacer
Author(s): Dragoset, Billprefacer
Affiliation: Encom Technology, Sydney, N.S.W., Australia
Pages: 81-84
Published: 200601
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
Accession Number: 2006-015662
Categories: Applied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. block diag.
S39°00'00" - S34°00'00", E140°00'00" - E150°00'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 200608
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