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Book Chapter

Digital Image Processing of Airborne Radiometric and Magnetic Data From Central Qaidam Basin

By
Zhang Yujun
Zhang Yujun
Research Institute of Aero Geophysical Survey, Ministry of Geology and Mineral Resources, Beijing
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Published:
January 01, 1989

Abstract

A description is given of the methods and results of displaying, enhancing, and interpreting airborne radiometric and magnetic data using digital image processing techniques. The processed data, taken over Central Qaidam Basin of Qinghai Province, were chiefly for investigating the evaporite-type of potash deposits.

The developed image restoration method for airborne radiometric data gave good results in reduction of striped noise formed by the unstable atmospheric background.

Using ternary, binary, and ratio images; scattergrams; level-slices; first and second gradients; shaded-relief; rose diagrams; and other images I studied and extracted geologic information on five problems: direct detection of potassium, lithological mapping, study of sedimentation of potash deposits, extraction of structural traces, and detection of gas anomalies.

The work shows that the digital image processing techniques for representing and interpreting airborne-geophysical data have better clarity, higher rapidity, and easier integration of multiparameters.

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Contents

Society of Exploration Geophysicists Geophysical References Series

An Overview of Exploration Geophysics in China — 1988

Zhao Jingxiang
Zhao Jingxiang
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Wang Yanjun
Wang Yanjun
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Fu Xuexin
Fu Xuexin
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Stanley H. Ward
Stanley H. Ward
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Society of Exploration Geophysicists
Volume
3
ISBN electronic:
9781560802662
Publication date:
January 01, 1989

GeoRef

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