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Article: Apparent tectonic rotations, declination anomaly equations, and declination anomaly charts

TitleApparent tectonic rotations, declination anomaly equations, and declination anomaly charts
Authors
Issue Date1988
Citation
Journal Of Geophysical Research, 1988, v. 93 B10, p. 12,151-12,158 How to Cite?
AbstractThe conventional method for tilt correction of paleomagnetic data assumes that rock bodies rotate about horizontal axes during deformations. Apparent tectonic rotations, which may produce anomalous declination readings of paleomagnetic directions and other linear elements, can result from the use of such a procedure if the rock bodies deform about inclined axes. The error (declination anomaly) resulting from two apparent tectonic rotations, 1) single rotations about an oblique axis and 2) continuous rotations about a precessing fold axis, can be determined algebraically for given orientations of rotation axis and angles of rotation. A declination anomaly chart (DAC) is constructed for each of the two processes to determine graphically whether anomalous paleomagnetic data obtained from a study area can result from the process. -from Author
Persistent Identifierhttp://hdl.handle.net/10722/150947
ISSN
2015 Impact Factor: 3.318
2015 SCImago Journal Rankings: 2.310

 

DC FieldValueLanguage
dc.contributor.authorChan, LSen_US
dc.date.accessioned2012-06-26T06:15:08Z-
dc.date.available2012-06-26T06:15:08Z-
dc.date.issued1988en_US
dc.identifier.citationJournal Of Geophysical Research, 1988, v. 93 B10, p. 12,151-12,158en_US
dc.identifier.issn0148-0227en_US
dc.identifier.urihttp://hdl.handle.net/10722/150947-
dc.description.abstractThe conventional method for tilt correction of paleomagnetic data assumes that rock bodies rotate about horizontal axes during deformations. Apparent tectonic rotations, which may produce anomalous declination readings of paleomagnetic directions and other linear elements, can result from the use of such a procedure if the rock bodies deform about inclined axes. The error (declination anomaly) resulting from two apparent tectonic rotations, 1) single rotations about an oblique axis and 2) continuous rotations about a precessing fold axis, can be determined algebraically for given orientations of rotation axis and angles of rotation. A declination anomaly chart (DAC) is constructed for each of the two processes to determine graphically whether anomalous paleomagnetic data obtained from a study area can result from the process. -from Authoren_US
dc.languageengen_US
dc.relation.ispartofJournal of Geophysical Researchen_US
dc.titleApparent tectonic rotations, declination anomaly equations, and declination anomaly chartsen_US
dc.typeArticleen_US
dc.identifier.emailChan, LS:chanls@hku.hken_US
dc.identifier.authorityChan, LS=rp00665en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0024221414en_US
dc.identifier.volume93en_US
dc.identifier.issueB10en_US
dc.identifier.spage12,151en_US
dc.identifier.epage12,158en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChan, LS=7403540528en_US

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