The interpretation of the generalised derivative operator
ABSTRACT The Generalised Derivative Operator is an image‐processing tool for the enhancement of potential field data. It produces an amplitude‐balanced image of the derivative of a potential field in any direction in three‐dimensional space. This paper shows how, by using the correct inclination ang...
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| Veröffentlicht in: | Geophysical Prospecting 2018-01, Vol.66 (1), p.197-206 |
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| container_title | Geophysical Prospecting |
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| creator | Cooper, G.R.J. |
| description | ABSTRACT
The Generalised Derivative Operator is an image‐processing tool for the enhancement of potential field data. It produces an amplitude‐balanced image of the derivative of a potential field in any direction in three‐dimensional space. This paper shows how, by using the correct inclination angle ϕ, the Generalised Derivative Operator can be used to produce images where its maxima/minima lie directly over dipping contacts and thin dykes with arbitrary magnetisation vectors. The dip of contacts and dykes can be found by varying ϕ until a symmetrical result is obtained (in the absence of unknown remanent magnetisation). Furthermore, the width of the peak of the Generalised Derivative Operator can then be used to determine the depth of the contact or dyke. |
| doi_str_mv | 10.1111/1365-2478.12539 |
| format | Article |
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The Generalised Derivative Operator is an image‐processing tool for the enhancement of potential field data. It produces an amplitude‐balanced image of the derivative of a potential field in any direction in three‐dimensional space. This paper shows how, by using the correct inclination angle ϕ, the Generalised Derivative Operator can be used to produce images where its maxima/minima lie directly over dipping contacts and thin dykes with arbitrary magnetisation vectors. The dip of contacts and dykes can be found by varying ϕ until a symmetrical result is obtained (in the absence of unknown remanent magnetisation). Furthermore, the width of the peak of the Generalised Derivative Operator can then be used to determine the depth of the contact or dyke.</description><identifier>ISSN: 0016-8025</identifier><identifier>EISSN: 1365-2478</identifier><identifier>DOI: 10.1111/1365-2478.12539</identifier><language>eng</language><publisher>Houten: Wiley Subscription Services, Inc</publisher><subject>Aeromagnetics ; Dikes ; Dipping ; Image enhancement ; Inclination angle ; interpretation ; Magnetization ; Vectors</subject><ispartof>Geophysical Prospecting, 2018-01, Vol.66 (1), p.197-206</ispartof><rights>2017 European Association of Geoscientists & Engineers</rights><rights>2018 European Association of Geoscientists & Engineers</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a3389-1607c6949b2d50e91c392d31ce2c29ae0e8e4fb415e8bb4f40bc73dfe9902be33</citedby><cites>FETCH-LOGICAL-a3389-1607c6949b2d50e91c392d31ce2c29ae0e8e4fb415e8bb4f40bc73dfe9902be33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2F1365-2478.12539$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2F1365-2478.12539$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Cooper, G.R.J.</creatorcontrib><title>The interpretation of the generalised derivative operator</title><title>Geophysical Prospecting</title><description>ABSTRACT
The Generalised Derivative Operator is an image‐processing tool for the enhancement of potential field data. It produces an amplitude‐balanced image of the derivative of a potential field in any direction in three‐dimensional space. This paper shows how, by using the correct inclination angle ϕ, the Generalised Derivative Operator can be used to produce images where its maxima/minima lie directly over dipping contacts and thin dykes with arbitrary magnetisation vectors. The dip of contacts and dykes can be found by varying ϕ until a symmetrical result is obtained (in the absence of unknown remanent magnetisation). Furthermore, the width of the peak of the Generalised Derivative Operator can then be used to determine the depth of the contact or dyke.</description><subject>Aeromagnetics</subject><subject>Dikes</subject><subject>Dipping</subject><subject>Image enhancement</subject><subject>Inclination angle</subject><subject>interpretation</subject><subject>Magnetization</subject><subject>Vectors</subject><issn>0016-8025</issn><issn>1365-2478</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNqFkM1Lw0AQxRdRsFbPXgOe085-JbtHKVqFgiL1vORjoikxG3e3lf73box4dS4Db96bYX6EXFNY0FhLyjOZMpGrBWWS6xMy-1NOyQyAZqkCJs_Jhfc7AA5SihnR23dM2j6gGxyGIrS2T2yThKi-YY-u6FqPdVKjaw9xesDEDlEN1l2Ss6boPF799jl5vb_brh7SzdP6cXW7SQvOlU5pBnmVaaFLVktATSuuWc1phaxiukBAhaIpBZWoylI0Asoq53WDWgMrkfM5uZn2Ds5-7tEHs7N718eThupcsfilEtG1nFyVs947bMzg2o_CHQ0FM_IxIw0z0jA_fGJCTomvtsPjf3azfn6Zct8mNmbr</recordid><startdate>201801</startdate><enddate>201801</enddate><creator>Cooper, G.R.J.</creator><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H96</scope><scope>KR7</scope><scope>L.G</scope></search><sort><creationdate>201801</creationdate><title>The interpretation of the generalised derivative operator</title><author>Cooper, G.R.J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a3389-1607c6949b2d50e91c392d31ce2c29ae0e8e4fb415e8bb4f40bc73dfe9902be33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Aeromagnetics</topic><topic>Dikes</topic><topic>Dipping</topic><topic>Image enhancement</topic><topic>Inclination angle</topic><topic>interpretation</topic><topic>Magnetization</topic><topic>Vectors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cooper, G.R.J.</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Geophysical Prospecting</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cooper, G.R.J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The interpretation of the generalised derivative operator</atitle><jtitle>Geophysical Prospecting</jtitle><date>2018-01</date><risdate>2018</risdate><volume>66</volume><issue>1</issue><spage>197</spage><epage>206</epage><pages>197-206</pages><issn>0016-8025</issn><eissn>1365-2478</eissn><abstract>ABSTRACT
The Generalised Derivative Operator is an image‐processing tool for the enhancement of potential field data. It produces an amplitude‐balanced image of the derivative of a potential field in any direction in three‐dimensional space. This paper shows how, by using the correct inclination angle ϕ, the Generalised Derivative Operator can be used to produce images where its maxima/minima lie directly over dipping contacts and thin dykes with arbitrary magnetisation vectors. The dip of contacts and dykes can be found by varying ϕ until a symmetrical result is obtained (in the absence of unknown remanent magnetisation). Furthermore, the width of the peak of the Generalised Derivative Operator can then be used to determine the depth of the contact or dyke.</abstract><cop>Houten</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1111/1365-2478.12539</doi><tpages>10</tpages></addata></record> |
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| ispartof | Geophysical Prospecting, 2018-01, Vol.66 (1), p.197-206 |
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| language | eng |
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| source | Wiley Journals |
| subjects | Aeromagnetics Dikes Dipping Image enhancement Inclination angle interpretation Magnetization Vectors |
| title | The interpretation of the generalised derivative operator |
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