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Relevant bibliographies by topics / Airborne magnetic / Dissertations / Theses

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Dissertations / Theses on the topic 'Airborne magnetic'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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1

Hunt, Andrew. "Airborne magnetic particles." Thesis, University of Liverpool, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333692.

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2

Gregotski, Mark Edward. "Fractal stochastic modelling of airborne magnetic data." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74300.

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Airborne magnetic field data exhibit downward continued power spectra of the form $1/f sp beta$ (where f is the spatial frequency and $ beta$ is a non-negative real number). This form of spectrum is observed for magnetic data recorded over a range of sampling scales from various areas of the Canadian Shield. Two scaling regimes have been discovered. The first has a $ beta$ value near 3 for wavelengths $ sbsp{ sim}{$25 km. These results suggest a "variable fractal" description of the distribution of near-surface magnetic sources.<br>From a data modelling viewpoint, the magnetic measurements are

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3

Naudé, Corus. "Target selection from airborne magnetic and radiometric data in Steinhausen area, Namibia." Thesis, Rhodes University, 2012. http://hdl.handle.net/10962/d1001520.

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The eastern branch of the late Proterozoic Damara Orogenic Belt of central Namibia hosts various copper, gold, manganese and uranium deposits, but in the vicinity of Steinhausen, approximately 145 km northeast of Windhoek, the Damara Belt becomes increasingly covered by recent Kalahari cover sediments resulting in little known geology and subsequent lack of discovered economic mineral deposits. Airborne magnetic and radiometric data over the Steinhausen Study Area was enhanced through image processing and filtering to accentuate characteristics of subsurface geology that, by comparing these ch

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4

Abtahi, Sayyed Mohammad. "Airborne Gravity Gradient, Magnetic and VLF datasets : Case studies of modelling, inversion and interpretation." Doctoral thesis, Uppsala universitet, Geofysik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-300126.

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Northern Sweden is one of the largest hosts for mineral resources in Europe and always has been an interesting area for researchers from various disciplines of Earth sciences. This dissertation is a comprehensive summary of three case study papers on airborne VLF, gravity gradient and magnetic data in the area. In the first paper, tensor VLF data is extracted from an old data set which contains only the total and the vertical magnetic components. The anomalous part of the horizontal magnetic field components is computed by a Hilbert transform of the vertical magnetic field. The normal part of

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5

Mohammadi, Soroor. "Processing and Modeling of Gravity, Magnetic and Electromagnetic Data in the Falkenberg Area, Sweden." Thesis, Uppsala universitet, Geofysik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-232714.

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Falkenberg area is located in southwest Sweden formed in the Sveconorwegian orogen and contains an extremely complex geological structure. Multiple geophysical datasets have been acquired and together with available petrophysical information, models corresponding to the subsurface geological structures were generated. The collected data comprise ground magnetic, AMT (Audio Magnetotelluric) and RMT (Radio Magnetotelluric) data. The available airborne magnetic and ground gravity data acquired by the Geological Survey of Sweden (SGU) as well as the reflection seismic section from a study made by

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6

Hernandez, Orlando. "Tectonic analysis of northwestern South America from integrated satellite, airborne and surface potential field anomalies." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1158512351.

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7

Queitsch, Matthias [Verfasser], Nina [Gutachter] Kukowski, Jörg Gutachter] Ebbing, and Ronny [Gutachter] [Stolz. "Modeling and inversion of airborne full tensor magnetic gradiometry data in the Thuringian basin and forest / Matthias Queitsch ; Gutachter: Nina Kukowski, Jörg Ebbing, Ronny Stolz." Jena : Friedrich-Schiller-Universität Jena, 2016. http://d-nb.info/1177614073/34.

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8

Beiki, Majid. "New Techniques for Estimation of Source Parameters : Applications to Airborne Gravity and Pseudo-Gravity Gradient Tensors." Doctoral thesis, Uppsala universitet, Geofysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-143015.

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Gravity gradient tensor (GGT) data contains the second derivatives of the Earth’s gravitational potential in three orthogonal directions. GGT data can be measured either using land, airborne, marine or space platforms. In the last two decades, the applications of GGT data in hydrocarbon exploration, mineral exploration and structural geology have increased considerably. This work focuses on developing new interpretation techniques for GGT data as well as pseudo-gravity gradient tensor (PGGT) derived from measured magnetic field. The applications of developed methods are demonstrated on a GGT d

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9

Saliaris, Ioannis R. "Real-Time data acquisition and processing of the Magnetic, Angular Rate and Gravity (MARG) sensor /." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Jun%5FSaliaris.pdf.

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Thesis (M.S. in Electrical Engineering and M.S. in Systems Engineering)--Naval Postgraduate School, June 2004.<br>Thesis advisor(s): Xiaoping Yun. Includes bibliographical references (p. 59-60). Also available online.

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10

Brozena, John M. "Kinematic GPS and aerogeophysical measurement : gravity, topography and magnetics." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336436.

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11

Rodrigues, Rafael Saraiva. "Evid?ncias da heran?a geotect?nica pr?-cambriana na gera??o da Bacia Potiguar: um estudo geof?sico multdisciplinar." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/18833.

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Made available in DSpace on 2015-03-13T17:08:36Z (GMT). No. of bitstreams: 1 RafaelSR_DISSERT_.pdf: 4378179 bytes, checksum: dc5658a221c8891102c9990af4393c19 (MD5) Previous issue date: 2013-04-13<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>The 3D gravity modeling of the Potiguar rift basin consisted of a digital processing of gravity and aeromagnetic data, subsidized by the results of Euler deconvolution of gravity and magnetic data and the interpretation of seismic lines and wells descriptions. The gravity database is a compilation of independent geophysical surveys

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12

Jeoffreys, Mark. "Subspace Tracking, Discrimination of Unexploded Ordinances (UXO) in Airborne Magnetic Field Gradients." Thesis, 2007. http://hdl.handle.net/10539/2160.

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Student Number : 9807515F - MSc Dissertation - School of Computational and Applied Mathematics - Faculty of Science<br>Statistical and algebraic techniques of subspace tracking were tested for filtering the earth’s response from airborne magnetic field gradients in order to discriminate the relatively small response (dipole) of objects on the earth’s surface, such as UXO. Filtering the data was not very effective with these methods but a subspace was found in the data for the magnitude of the magnetic moment of the dipole. This subspace is easily obtained using the singular value decom

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13

Mahanyele, Phuti Josphat. "Interpretation of airborne magnetic data over selected areas of Witbank coalfield, South Africa : an aid to mine planning." Diss., 2010. http://hdl.handle.net/2263/27329.

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The main objective of this work is to aid coal mine planning by determining geological structures that affect mining such as faults, dykes and sills. Faults can displace the coal seams by breaking and throwing the coal seam on one side of the fault deeper; thereby constituting safety risks or even making exploitation uneconomical. Dykes are associated with devolatilisation of the coal around them. Both dykes and faults are also important in terms of groundwater management. The sills have the same devolatilisation effect as dykes but on a larger scale as they cover more area than the dykes. The

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14

Moore, Chris. "Applications of high resolution airborne magnetic and radiometric data in the Barberton greenstone belt of South Africa." Thesis, 1994. https://hdl.handle.net/10539/24353.

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15

Soares, Moisés. "Integrating Geophysical Airborne and Geological Data to Characterize Karst Aquifer at Baucau Plateau, Baucau Municipality Timor-Leste." Master's thesis, 2018. http://hdl.handle.net/10316/86633.

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Dissertação de Mestrado em Geociências apresentada à Faculdade de Ciências e Tecnologia<br>Foi efetuada a caracterização de dados geológicos e geofísicos para descrever o aquífero no calcário coralífero do planalto de Baucau, Município de Baucau, Timor Leste. As cotas mais elevadas situam-se a sul do planalto que inclina para norte em direção ao mar e com escarpas nas partes leste e oeste. Foram efetuados levantamentos aero-magnéticos e aero-eletromagnéticos pela empresa FUGRO em 2 de julho de 2011. Informações dos dados de perfurações e de TDEM/SNMR foram utilizadas para melhorar a inversão d

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16

Fossati, Reiner Justin. "The construction of optimal drape surfaces with constrained first and second derivatives." Thesis, 2003. http://hdl.handle.net/10500/1541.

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The need to construct optimal drape surfaces arises in airborne geophysical surveys where it is necessary to fly a safe distance above the ground and within the performance limits of the aircraft used, but as close as possible to the surface. The problem is formulated as an LP with constraints at every point of a grid covering the area concerned, yielding a very large problem. The objective of the LP is to create as "good" a surface as possible. This formulation is new, as previous methods did not aim to minimise an objective function. If the desired surface has only slope limitations,

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17

Hrušková, Gloria. "Magnetometrické a spektrometrické analýzy polétavého prachu z lokalit s emisním znečištěním ovzduší převážně z automobilové dopravy (Pražský okruh) a z průmyslu (poblíž ostravských hutí) s využitím meteorologických dat." Master's thesis, 2018. http://www.nusl.cz/ntk/nusl-380729.

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The content of analytical part of this thesis is the study of airborne dust samples collected in places with its higher concentration: by the Prague Ring (D0 motorway) and near the Ostrava's iron-mills. In both places, automobile transportation or industrial production are the primary sources of particulate matter emissions in the air. Received samples of PM1, PM2, PM10 a TSP filters were obtained by a standard air pollution monitoring procedure. This study examines the relationship between the magnetic parameters of the samples, their level of concentration of metals frequently present in emi

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