Publication
Paleomagnetic study of the Great Foum Zguid dyke (southern Morocco): A positive contact test related to metasomatic processes
| dc.contributor.author | Silva, Pedro | |
| dc.contributor.author | Henry, B. | |
| dc.contributor.author | Marques, Fernando O. | |
| dc.contributor.author | Madureira, P. | |
| dc.contributor.author | Miranda, Jorge Miguel | |
| dc.date.accessioned | 2012-03-21T19:07:03Z | |
| dc.date.available | 2012-03-21T19:07:03Z | |
| dc.date.issued | 2006-11-01 | |
| dc.description.abstract | When a paleomagnetic pole is sought for in an igneous body, the host rocks should be subjected to a contact test to assure that the determined paleopole has the age of the intrusion. If the contact test is positive, it precludes the possibility that the measured magnetization is a later effect. Therefore, we investigated the variations of the remanent magnetization along cross-sections of rocks hosting the Foum Zguid dyke (southern Morocco) and the dyke itself. A positive contact test was obtained, but it is mainly related with Chemical/Crystalline Remanent Magnetization due to metasomatic processes in the host-rocks during magma intrusion and cooling, and not only with Thermo-Remanent Magnetization as ordinarily assumed in standard studies. Paleomagnetic data obtained within the dyke then reflect the Earth magnetic field during emplacement of this well-dated (196.9 +/- 1.8 Ma) intrusion. | por |
| dc.identifier.citation | SILVA, Pedro F.; [et al] – Paleomagnetic study of the Great Foum Zguid dyke (southern Morocco): A positive contact test related to metasomatic processes.Geophysical Research Letters. ISSN 0094-8276. Vol. 33, N.º 21 (2006), pp. 1-6. | por |
| dc.identifier.doi | 10.1029/2006GL027498 | |
| dc.identifier.issn | 0094-8276 | |
| dc.identifier.uri | http://hdl.handle.net/10400.21/1325 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Amer Geophysical Union | por |
| dc.subject | Magnetic-Properties | por |
| dc.subject | Atlantic | por |
| dc.subject | Paleomagnetic | |
| dc.subject | Foum Zguid dyke (southern Morocco) | |
| dc.subject | Chemical/Crystalline Remanent Magnetization | |
| dc.subject | Metasomatic processes | |
| dc.subject | Thermo-Remanent Magnetization | |
| dc.title | Paleomagnetic study of the Great Foum Zguid dyke (southern Morocco): A positive contact test related to metasomatic processes | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | USA | por |
| oaire.citation.issue | 21 | por |
| oaire.citation.title | Geophysical Research Letters | por |
| oaire.citation.volume | 33 | |
| person.familyName | Silva | |
| person.givenName | Pedro | |
| person.identifier | 1232178 | |
| person.identifier.ciencia-id | C314-1157-FD0C | |
| person.identifier.orcid | 0000-0002-9178-3623 | |
| person.identifier.rid | B-8512-2008 | |
| person.identifier.scopus-author-id | 55431034700 | |
| rcaap.rights | restrictedAccess | por |
| rcaap.type | article | por |
| relation.isAuthorOfPublication | 54c96e27-8c3a-42d9-b751-ebc637c2f478 | |
| relation.isAuthorOfPublication.latestForDiscovery | 54c96e27-8c3a-42d9-b751-ebc637c2f478 |