A palaeomagnetic study of the volcanic rocks of El-Mane mountain, south of Damascus - Syria
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| Format: | Artículo científico |
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Universidad Nacional Autónoma de México
2005
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| author | J. M. Abou-Deeb |
| author_facet | J. M. Abou-Deeb |
| contents | A palaeomagnetic study of the volcanic rocks of El-Mane mountain, south of Damascus - Syria J. M. Abou-Deeb D. H. Tarling Ciencias de la Tierra Syria Damascus tectonics volcanic rocks Magnetostratigraphy Previously reported palaeomagnetic data from region El Mane Mountain of Syria are supplemented by thermal demagnetisationstudies of 46 new sites (14 flow units). Sites with strong within and between sample consistency are arranged stratigraphically andcombined with previous palaeomagnetic and radiometric data to establish a preliminary magnetostratigraphic chronology. Thiscorrelates closely with polarity chrons 5Dr to 6An.1r of the Geomagnetic Polarity Time Scale. The volcanism appears to haveoccurred spasmodically throughout this 3 Ma period, probably in relation to the irregular development of new fracture systemsrather than quasi-intermittent injection of magma into local chambers. It is confirmed that the spatial-temporal variations of thegeomagnetic field did not correspond closely to that of an axial geocentric dipole in this region at this time, but was possiblyinfluenced by a strong and persistent non-dipole component. This affected the inclinations observed during both Normal andReversed periods. Nonetheless, the declinations were more affected during times of Normal polarity than during times of Reversedpolarity. On this basis, caution is urged in the interpretation of palaeomagnetically determined tectonic rotations, duringthis time in the Middle Eastern region. 2005 artículo científico 0016-7169 https://www.redalyc.org/articulo.oa?id=56844206 en http://www.redalyc.org/revista.oa?id=568 Geofísica Internacional application/pdf Universidad Nacional Autónoma de México Geofísica Internacional (México) Num.2 Vol.44 |
| format | Artículo científico |
| id | redalyc_56844206 |
| institution | Redalyc |
| language | en |
| publishDate | 2005 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | A palaeomagnetic study of the volcanic rocks of El-Mane mountain, south of Damascus - Syria J. M. Abou-Deeb Ciencias de la Tierra Syria Damascus tectonics volcanic rocks Magnetostratigraphy A palaeomagnetic study of the volcanic rocks of El-Mane mountain, south of Damascus - Syria J. M. Abou-Deeb D. H. Tarling Ciencias de la Tierra Syria Damascus tectonics volcanic rocks Magnetostratigraphy Previously reported palaeomagnetic data from region El Mane Mountain of Syria are supplemented by thermal demagnetisationstudies of 46 new sites (14 flow units). Sites with strong within and between sample consistency are arranged stratigraphically andcombined with previous palaeomagnetic and radiometric data to establish a preliminary magnetostratigraphic chronology. Thiscorrelates closely with polarity chrons 5Dr to 6An.1r of the Geomagnetic Polarity Time Scale. The volcanism appears to haveoccurred spasmodically throughout this 3 Ma period, probably in relation to the irregular development of new fracture systemsrather than quasi-intermittent injection of magma into local chambers. It is confirmed that the spatial-temporal variations of thegeomagnetic field did not correspond closely to that of an axial geocentric dipole in this region at this time, but was possiblyinfluenced by a strong and persistent non-dipole component. This affected the inclinations observed during both Normal andReversed periods. Nonetheless, the declinations were more affected during times of Normal polarity than during times of Reversedpolarity. On this basis, caution is urged in the interpretation of palaeomagnetically determined tectonic rotations, duringthis time in the Middle Eastern region. 2005 artículo científico 0016-7169 https://www.redalyc.org/articulo.oa?id=56844206 en http://www.redalyc.org/revista.oa?id=568 Geofísica Internacional application/pdf Universidad Nacional Autónoma de México Geofísica Internacional (México) Num.2 Vol.44 |
| title | A palaeomagnetic study of the volcanic rocks of El-Mane mountain, south of Damascus - Syria |
| topic | Ciencias de la Tierra Syria Damascus tectonics volcanic rocks Magnetostratigraphy |
| url | https://www.redalyc.org/articulo.oa?id=56844206 |