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Wednesday, July 29, 2020 | History

2 edition of A study of aeromagnetic component data Plantagenet Bank found in the catalog.

A study of aeromagnetic component data Plantagenet Bank

by Young, G. A.

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  • 3 Currently reading

Published by U.S. Naval Oceanographic Office in Washington .
Written in English


Edition Notes

StatementG.A. Young and A.L. Kontis
SeriesTechnical report -- TR-144, Technical report (United States. Naval Oceanographic Office) -- TR-144.
ContributionsKontis, Angelo L., United States. Naval Oceanographic Office
The Physical Object
Paginationvi, 18 p. :
Number of Pages18
ID Numbers
Open LibraryOL24359219M
OCLC/WorldCa34664784

The primary data used in this analysis is the aeromagnetic maps from part of upper Benue basin. Six aeromagnetic maps published by the Geological Survey of Nigeria Agency, Airborne geophysical series () on a scale 0f , covering the study area were used. The maps used were from sheet numbers , The Montana aeromagnetic compilation map contains data from 65 separate aeromagnetic surveys, digitized maps, and previous gridded compilations. This map is an index to the flightline spacing of the original surveys. A tabular index provides a summary of the data sources.

3. Aeromagnetic data and analysis The origin of data The key component of this study involved image enhancement of existing aeromagnetic data sets acquired by the company SURVAIR (contractor) for the CIDA (client) in Aeromagnetic surveys were flown with a flight height of Figure 1. High-resolution aeromagnetic data from the northern Willamette Valley, Oregon, reveal large, northwest-striking faults buried beneath Quaternary basin sediments. Several faults known from geologic mapping are well defined by the data and appear to extend far beyond their mapped surface traces. The Mount Angel fault, the likely source of the Richter magnitude (M1) earthquake in , is at.

In , the U.S. Geological Survey (USGS) contracted with Sial Geosciences Inc. for a detailed aeromagnetic survey of the Santa Cruz basin and Patagonia Mountains area of south-central Arizona. The contractor's Operational Report is included as an Appendix in this report. This section describes the data processing performed by the USGS on the digital aeromagnetic data received from the. Aeromagnetic data over a part of Maiduguri and Environs of the Southern Chad Basin, Nigeria was analyzed. The aeromagnetic anomaly map, its qualitative and quantitative interpretation helped in identifying the nature and depth of the magnetic sources in the study region.


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A study of aeromagnetic component data Plantagenet Bank by Young, G. A. Download PDF EPUB FB2

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Naval Oceanographic Office) ; TR By. Genre/Form: book: Additional Physical Format: Print version: Young, G.A. Study of aeromagnetic component data Plantagenet Bank. Washington: U.S. Naval Oceanographic. A study of aeromagnetic component data Plantagenet Bank Item Preview remove-circle Share or Embed This Item.

A study of aeromagnetic component data Plantagenet Bank by Young, G. A; Kontis, Angelo L.; United States.

Naval Oceanographic Office. Publication date TopicsPages: An aeromagnetic survey is a common type of geophysical survey carried out using a magnetometer aboard or towed behind an aircraft.

The principle is similar to a magnetic survey carried out with a hand-held magnetometer, but allows much larger areas of the Earth's surface to. carry out a particular survey.

For the purpose of this study, we shall employ magnetic method using aeromagnetic data to investigate the properties of the subsurface in Ilesha, South West Nigeria. Aeromagnetic geophysical method has been widely used since its inception. Author of Essentials of Statistical Inference, The Geology and Petrography of Mount Yamaska, Province of Quebec, and A Study of Aeromagnetic Component Data Plantagenet Bank/5(8).

[Click to enlarge] Figure 2: The 1st vertical derivative of the aeromagnetic data (upward continued to m) for the Karonga area, showing the coincidence between the coseismic surface fault ruptures and the satellite-detected coseismic surface fault trace from Biggs et al.

The aeromagnetic data shows the entire extent and geometry of the earthquake fault and other buried faults. Airborne Magnetic Data. NCEI's aeromagnetic program focuses on global data to support modeling of Earth's magnetic field. The U.S. aeromagnetic data are updated and available from the USGS Geophysical Products.

NCEI continues to archive and serve data for main field modeling. resulting from lateritic bodies i n the outcrops within the study area as estimated by Euler depths for the four different structural inde x (SI =1, 2, 3) ranges from to m.

35 to. Gondwana Research, K 6, No. 4, pp. 0 International Association for Gondwana Research, Japan ISSN: X Study of Aeromagnetic Data Over Part of Eastern Ghat Mobile Belt and Bastar Craton S.P.

Anand and Mita Rajaram* Indian Institute of Geomagnetism, Mtmbai -India, E-mail: [email protected] * Corresponding Author (Maiiirscript received Febru ; accepted.

Interpretation of Aeromagnetic Data. Erwin Ebner, John Peirce and Nathalie Marchand In-field processing is a crucial component of quality control by the contractor. This QC will provide an early indication of acquisition problems and allow the crew to remedy deficiencies before proceeding further with the survey.

most aeromagnetic data. Aeromagnetic data of Idah and Angba environs, north central Nigeria, has been interpreted by applying spectral analysis and forward and inverse modeling methods.

Quantitatively, spectral analysis and forward and inverse modeling techniques were employed in interpretation with the aim of determining depth/thickness of the sedimentary Basin and magnetic susceptibilities that give clue on the. Toronto, Canada - Geoscience students and geologists now have a useful guide for learning the theory and practice of aeromagnetic surveying.

An e-book on Aeromagnetic Surveys: Principles, Practice and Interpretation, authored by Colin Reeves of Earthworks and published by Geosoft, is now available. This new e-book provides a useful guide for non-specialists looking to gain a better. Aeromagnetic surveys were flown in parts of the Craig-Dixon Entrance area as early as (Rossman and others, ; Decker, ).

These data were flown at 1-mile spacings at elevations ranging from feet to 6, feet above mean sea level. AEROMAGNETIC DATA AND INTERPRETATION The aeromagnetic map of the Big Delta quadrangle was flown in and subsequently released by the State of Alaska (Alaska Div.

Geology and Geophysics, ) at a scale ofThe data were collected along north-south traverses spaced at km intervals and flown at an altitude of m above the. Aeromagnetic exploration is an important exploration method in geophysics.

The data is typically measured by optically pumped magnetometer mounted on an aircraft. But any aircraft produces significant levels of magnetic interference. Therefore, aeromagnetic compensation is important in aeromagnetic exploration. However, multicollinearity of the aeromagnetic compensation model.

The four aeromagnetic sheets covering the study area were manually digitized at a regular grid spacing 3 km to recover TMI values. The gridded data were then digitally merged to obtained a composite data set of 37 x 37 grid values.

The grid interval was found to be adequate for analyzing crustal magnetic anomalies (Udensiet al., ) The. Aeromagnetic data acquired by the Nigerian Geological Survey Agency and which covers about square kilometer of some parts of onshore Niger Delta, Nigeria, was processed and interpreted with the purpose of determining the depth to basement of the study area, delineating areas suitable for hydrocarbon and mineral accumulation, establishing the basement topography, highlighting the.

Aeromagnetic exploration is an important exploration method in geophysics. The data is typically measured by optically pumped magnetometer mounted on an aircraft. But any aircraft produces significant levels of magnetic interference. Therefore, aeromagnetic compensation is important in aeromagnetic exploration.

Detailed Aeromagnetic Studies Fault Interpretations from component Separation of Aeromagnetic Data into Components. Horizontal-gradient method for gravity data Cordell, Horizontal-gradient • Aeromagnetic data suggest steeply dipping range-front fault with benches.

Interpretation of aeromagnetic data over Abeokuta and its environs, Southwest Nigeria, using spectral analysis (Fourier transform technique) May DOI: /rmzmagAn aeromagnetic map for Ogbomoso area within longitudes 4°00 and 4°30'E and latitudes 8°00 and 8°30'N which covers the distance of 55 by 55 km ( km 2) study area was map was digitized, gridded and delineated into profiles at m interval of which some profiles were selected, processed and regional gradient removed.