Last edited by Mujinn
Tuesday, January 28, 2020 | History

2 edition of Spectral analysis of aeromagnetic data. found in the catalog.

Spectral analysis of aeromagnetic data.

Allan Spector

Spectral analysis of aeromagnetic data.

  • 339 Want to read
  • 11 Currently reading

Published .
Written in English

    Subjects:
  • Magnetic fields -- Measurement,
  • Spectral analysis,
  • Physics Theses

  • Edition Notes

    ContributionsGrant, F. S. (supervisor)
    The Physical Object
    Pagination1 v. (various pagings)
    ID Numbers
    Open LibraryOL18883899M

    Also, this study has contributed to the better understanding of geothermal energy potential in Nigeria. The modeled intrusive doesn't quite breach the surface, but must reach to within a kilometer. Geological Survey Open-File Report, 76 p. A roughly north-oriented magnetic anomaly at Sukkwan Island suggests that the exposed syenite in the southeastern part of the island may underlie the entire island, and also may extend across Sukkwan Strait to Eek Lake all the way north to Deer Bay on the main body of Prince of Wales Island. In conclusion, the results of both methods were compared and interpreted for the aforementioned region. Hahn et al.

    The result from this study is ample enough to accommodate oil and gas accumulation. The meter reader: Micro magnetic seep detection in the Sudan. These wavelets make the correspon C,Depth estimation of Magnetic Sources by means of Fouries amplitude spectra.

    A probably separate anomaly lies over the southern part of the immediately-adjacent westward island Lulu Islandcentered where another Cretaceous stock is partially exposed, but the anomaly extends under the sea to the west. Scientia Africana, 14 1 Introduction The application of spectral analysis to the interpretation of potential field data is one method that can be used to determine the basement depth, and is now sufficiently well established Spector and Grant, The resulting residual magnetic field after all these corrections can thus be compared with confidence to other magnetic surveys acquired in different years.


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Spectral analysis of aeromagnetic data. book

The total magnetic intensity map of the study area exhibits both high and low anomalies ranging from 31, to 33, nT. A fourth correction compensates for the fact that there is a slow, steady westward drift of a second-order component of the Earth's dipolar field.

The Helma-Madrakah area lies in the northern part of the Makkah quadrangle located in the southern part of the Hijaz region, western Saudi Arabia.

He is a member of Nigerian Institute of Physics.

Applications to the high-resolution aeromagnetic survey of French Guyana will be discussed in the next paper of the series. Geophysics Figure 4b.

We call this the Residual Magnetic Field, because it is the residual after all these drift effects are taken out. Geological Survey Open-File Report5 maps, 24 p. Not surprisingly, the areal extent of the pluton beneath the island and the surrounding sea is more than twice the island exposure.

Distribution map showing the heat flow in the study area Considering the average geothermal heat flow obtained in the study area which is A wrench pull apart concept yields a simple explanation for both the present Zechstein basement configuration and the spatial distribution of salt struc Variogram analysis makes maximum use of short-wavelength contributions to the magnetic signal, which is the key to the resolution of shallow basement topography.

McGrall Hill international, New York, Its advantage is that the spectral domain expressions of the anomalies are generally vastly simple as compared to the expressions of the anomalies in the space domain. Magnetic Depth-to-Source Euler deconvolution is one method for calculating depth-to-source from magnetic data Blakely, Aeromagnetic data HR of Bida Basin had been interpreted with the aim of estimating the thickness of sediments for hydrocarbon potential.

Appropriate model using the first and second order local wave numbers was then proposed.

The aim of the firm is Accelerating Global Knowledge Sharing. The residual anomalous map contains various contour configurations with high economic significance. Linearity property is possessed by the Herbert transformation and vertical change operators, hence the change in the vertical direction of equation 3.

The solutions are typically displayed as a series of circles, with the centre of the circle indicating the position of the source and the diameter of the circle indicating the source depth.

Within the area are two magnetic lows, namely the area indicated with the double directional arrow and that indicated with thick double arrow points. Figure 9 shows that in the mid-region of the study area around Baro and Koton-Karfithe Curie point isotherm depths are higher ranging from Read "TWO‐DIMENSIONAL POWER SPECTRAL ANALYSIS OF AEROMAGNETIC FIELDS *, Geophysical Prospecting" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

—Power spectra analysis of aeromagnetic data from the southeast North Sea, where the depth to the top of the magnetic sources is reasonably well constrained, indicates that the scaling factor or spectral exponent (β) in an area with thick sediment cover is likely to Cited by: Abstract: Two- dimensional techniques for spectral analysis and Hilbert transformation of aeromagnetic data over Jalingo and environs were carried out in order to estimate the average depth to magnetic sources.

The result from spectral analysis conducted indicates two source depths. The deeper magnetic source varies between m to m. The purpose of the study is to estimate the curie-temperature depth and heat flow in the southern Bida basin, which is deduced from spectral analysis of aeromagnetic data over the southern Bida basin of west-central Nigeria.

Modern Scientific Press

The area covered is about 12, km 2 which lies on coordinates 8°00′N, 6°00′E and 9°00′N, 7°00′E. Nov 22,  · Curie Depth Estimation from Aeromagnetic for Fractal Distribution of Sources. Authors; In this chapter Curie depth estimation from aeromagnetic data for fractal distribution of sources will be presented.

Agarwal PK, Pandey OP () A spectral analysis of the aeromagnetic profiles for thickness estimation of flood basalts of India Cited by: 5. SPECTRAL ANALYSIS OF AEROMAGNETIC DATA FOR GEOTHERMAL RECONNAISSANCE OF QUSEIR AREA, NORTHERN RED SEA, EGYPT Ahmed SALEM1, Keisuke USHIJIMA1, Abuelhoda ELSIRAFI2, and Hideki MIZUNAGA1 1 Geophysical Exploration Lab., Faculty of Engineering, Kyushu UniversityHakozaki, Higashi-ku,Fukuoka, Japan 2 Nuclear Materials Authority of .